Market Overview

The United Kingdom lithium-ion battery for electric vehicle market represents one of Europe’s most dynamic and rapidly evolving automotive technology sectors. As the UK government accelerates its commitment to achieving net-zero emissions by 2050, the demand for advanced lithium-ion battery systems has experienced unprecedented growth. The market encompasses a comprehensive ecosystem of battery manufacturers, automotive OEMs, technology developers, and supporting infrastructure providers working collaboratively to establish the UK as a leading hub for electric vehicle battery technology.

Market dynamics indicate robust expansion driven by stringent environmental regulations, substantial government incentives, and increasing consumer acceptance of electric vehicles. The UK’s strategic positioning within the European automotive supply chain, combined with significant investments in battery manufacturing facilities and research initiatives, has created a favorable environment for sustained market growth. Industry projections suggest the market will experience a compound annual growth rate of 18.2% through the forecast period, reflecting the accelerating transition toward electrified transportation.

Technological advancements in lithium-ion battery chemistry, energy density improvements, and cost reduction initiatives continue to drive market evolution. The integration of advanced battery management systems, enhanced safety protocols, and innovative manufacturing processes has positioned UK-based operations at the forefront of global electric vehicle battery development. Furthermore, the establishment of strategic partnerships between international battery manufacturers and domestic automotive companies has strengthened the market’s competitive positioning and technological capabilities.

Meaning

The United Kingdom lithium-ion battery for electric vehicle market refers to the comprehensive ecosystem encompassing the design, manufacturing, distribution, and integration of lithium-ion battery systems specifically engineered for electric vehicles within the UK automotive sector. This market includes various battery chemistries, cell configurations, and energy storage solutions designed to power battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), and hybrid electric vehicles (HEVs) across passenger car, commercial vehicle, and specialty vehicle segments.

Market scope extends beyond traditional battery manufacturing to include advanced battery management systems, thermal management solutions, charging infrastructure compatibility, and end-of-life recycling programs. The definition encompasses both domestic production facilities and imported battery systems integrated into vehicles manufactured or sold within the UK market. Additionally, the market includes research and development activities, testing facilities, and supporting technologies that contribute to the advancement of lithium-ion battery performance and safety standards.

Executive Summary

Strategic market analysis reveals the United Kingdom lithium-ion battery for electric vehicle market is experiencing transformational growth driven by regulatory mandates, technological innovation, and shifting consumer preferences. The market benefits from substantial government support through the Automotive Transformation Fund and various incentive programs designed to accelerate electric vehicle adoption and domestic battery manufacturing capabilities.

Key market drivers include the UK government’s commitment to banning internal combustion engine vehicle sales by 2030, increasing corporate sustainability initiatives, and growing consumer awareness of environmental benefits associated with electric vehicles. The market has witnessed significant investment in gigafactory development, with major international manufacturers establishing production facilities to serve both domestic and European markets. Current market penetration of electric vehicles has reached approximately 16.5% of new vehicle sales, indicating substantial growth potential.

Competitive landscape features a diverse mix of established battery manufacturers, emerging technology companies, and automotive OEMs developing integrated battery solutions. The market structure supports both high-volume production for mass-market vehicles and specialized battery systems for premium and commercial applications. Innovation focus areas include energy density improvements, fast-charging capabilities, extended battery life, and enhanced safety features that address consumer concerns about electric vehicle performance and reliability.

Key Market Insights

Market intelligence reveals several critical insights shaping the United Kingdom lithium-ion battery for electric vehicle market trajectory. The following key insights provide strategic understanding of market dynamics and growth opportunities:

1. Government Policy Alignment: UK policy framework strongly supports electric vehicle transition through comprehensive incentive programs, infrastructure development, and regulatory mandates
2. Manufacturing Investment: Significant capital commitments from international battery manufacturers establishing UK production facilities to serve European markets
3. Technology Innovation: Advanced research initiatives focusing on next-generation battery chemistries and improved energy density solutions
4. Supply Chain Development: Strategic partnerships creating integrated battery supply chains from raw materials to finished products
5. Consumer Adoption: Growing acceptance of electric vehicles driven by improved battery performance and expanding charging infrastructure
6. Cost Reduction: Economies of scale and technological improvements driving battery cost reductions of approximately 12% annually
7. Recycling Infrastructure: Development of comprehensive battery recycling programs supporting circular economy principles
8. Commercial Vehicle Focus: Increasing adoption of electric commercial vehicles creating demand for specialized battery solutions

Market Drivers

Regulatory mandates serve as the primary catalyst driving United Kingdom lithium-ion battery for electric vehicle market expansion. The UK government’s commitment to achieving carbon neutrality by 2050, combined with the planned ban on internal combustion engine vehicle sales by 2030, creates substantial demand for electric vehicle battery systems. These regulatory frameworks provide market certainty and encourage long-term investment in battery manufacturing infrastructure and technology development.

Government incentives significantly influence market growth through various support mechanisms including purchase grants, tax benefits, and infrastructure development funding. The Plug-in Car Grant and reduced benefit-in-kind taxation for electric vehicles make battery electric vehicles more financially attractive to consumers and fleet operators. Additionally, the government’s commitment to investing in charging infrastructure addresses range anxiety concerns and supports broader electric vehicle adoption.

Technological advancements continue to drive market expansion as battery manufacturers achieve significant improvements in energy density, charging speed, and overall performance. Recent developments in lithium iron phosphate (LFP) and nickel-rich cathode technologies have enhanced battery safety while reducing costs. These technological improvements address historical consumer concerns about electric vehicle performance, driving increased market acceptance and demand for advanced battery solutions.

Corporate sustainability initiatives represent another significant market driver as businesses increasingly adopt electric vehicle fleets to meet environmental, social, and governance (ESG) objectives. Major corporations are committing to carbon-neutral operations, creating substantial demand for commercial electric vehicles and supporting battery systems. This corporate adoption trend extends beyond transportation to include logistics, delivery services, and public transportation sectors.

Market Restraints

High initial costs continue to represent a significant barrier to widespread electric vehicle adoption, directly impacting demand for lithium-ion battery systems. Despite ongoing cost reductions, battery systems still account for approximately 35-40% of total electric vehicle costs, making these vehicles more expensive than comparable internal combustion engine alternatives. This cost differential particularly affects price-sensitive consumer segments and limits market penetration in certain vehicle categories.

Supply chain constraints pose substantial challenges for the United Kingdom lithium-ion battery market, particularly regarding critical raw materials such as lithium, cobalt, and nickel. Global supply chain disruptions, geopolitical tensions, and limited domestic mining capabilities create vulnerability to material price volatility and availability issues. These constraints can impact production schedules, increase costs, and limit the ability to meet growing demand for battery systems.

Infrastructure limitations remain a significant market restraint despite ongoing investment in charging networks. Insufficient charging infrastructure, particularly in rural areas and for apartment dwellers, creates range anxiety among potential electric vehicle buyers. The current charging infrastructure can accommodate approximately 22% of projected electric vehicle demand by 2030, indicating substantial infrastructure gaps that must be addressed to support market growth.

Technical challenges related to battery performance in extreme weather conditions, charging time requirements, and battery degradation over time continue to influence consumer purchasing decisions. Cold weather performance issues can reduce battery range by up to 25%, while concerns about battery replacement costs and limited recycling options create additional barriers to market adoption.

Market Opportunities

Manufacturing expansion presents substantial opportunities as the United Kingdom positions itself as a strategic hub for European electric vehicle battery production. The establishment of gigafactory facilities creates opportunities for domestic job creation, technology transfer, and supply chain development. These manufacturing investments can reduce dependence on imported battery systems while supporting the broader automotive industry transformation.

Technology innovation opportunities abound in areas such as solid-state batteries, advanced battery management systems, and improved recycling technologies. UK universities and research institutions are developing next-generation battery technologies that could provide competitive advantages in global markets. Collaboration between academic institutions, government agencies, and private companies creates opportunities for breakthrough innovations that could reshape the industry.

Export potential represents a significant long-term opportunity as UK-based battery manufacturers can serve broader European markets through established trade relationships and logistical networks. The development of high-quality battery systems for export markets could generate substantial revenue streams and support domestic manufacturing scale economies. This export focus could position the UK as a key supplier within the European electric vehicle ecosystem.

Circular economy development creates opportunities in battery recycling, refurbishment, and second-life applications. As the installed base of electric vehicle batteries grows, opportunities emerge for battery lifecycle management services that extract maximum value from battery investments. These circular economy initiatives can reduce raw material dependence while creating new revenue streams and supporting environmental sustainability objectives.

Market Dynamics

Competitive dynamics within the United Kingdom lithium-ion battery for electric vehicle market reflect a complex interplay between established international manufacturers, emerging technology companies, and automotive OEMs developing integrated solutions. The market structure supports both large-scale manufacturing operations and specialized niche applications, creating opportunities for companies with different strategic approaches and technological capabilities.

Supply and demand balance continues to evolve as production capacity expansion efforts work to meet rapidly growing demand for electric vehicle battery systems. Current production capacity can meet approximately 68% of projected demand through 2025, indicating the need for continued investment in manufacturing infrastructure. This supply-demand imbalance creates opportunities for new market entrants while supporting premium pricing for high-performance battery solutions.

Technology evolution drives continuous market transformation as manufacturers develop improved battery chemistries, enhanced safety features, and more efficient production processes. The transition toward nickel-rich cathode materials and silicon-enhanced anodes represents significant technological shifts that impact performance characteristics and cost structures. These technological developments create competitive advantages for companies that successfully implement advanced battery technologies.

Regulatory influence continues to shape market dynamics through evolving safety standards, environmental regulations, and performance requirements. The implementation of battery passport systems and enhanced recycling mandates will influence market structure and competitive positioning. Companies that proactively address regulatory requirements while maintaining cost competitiveness will be best positioned for long-term success.

Research Methodology

Comprehensive market analysis for the United Kingdom lithium-ion battery for electric vehicle market employs a multi-faceted research approach combining primary and secondary data sources to ensure accuracy and reliability. The methodology incorporates quantitative analysis of market trends, competitive positioning, and growth projections alongside qualitative insights from industry experts, government officials, and technology developers.

Primary research activities include structured interviews with key stakeholders across the battery manufacturing ecosystem, automotive OEMs, government agencies, and research institutions. These interviews provide insights into market dynamics, technological developments, regulatory impacts, and future growth opportunities. Survey data from battery manufacturers, automotive companies, and end-users supplements interview findings with quantitative market intelligence.

Secondary research encompasses analysis of government publications, industry reports, academic studies, and company financial disclosures to establish market baselines and identify emerging trends. Patent analysis, regulatory filings, and investment announcements provide additional insights into technological developments and competitive positioning. MarkWide Research proprietary databases and analytical frameworks support comprehensive market modeling and forecasting activities.

Data validation processes ensure research accuracy through triangulation of multiple data sources, expert review panels, and statistical validation techniques. Market projections undergo sensitivity analysis to account for various scenario outcomes and potential market disruptions. This rigorous methodology provides stakeholders with reliable market intelligence for strategic decision-making and investment planning.

Regional Analysis

England dominates the United Kingdom lithium-ion battery for electric vehicle market, accounting for approximately 72% of total market activity. The concentration of automotive manufacturing facilities, research institutions, and government support programs in England creates a favorable environment for battery industry development. Major manufacturing investments in the Midlands and Northern England regions support both domestic vehicle production and export opportunities.

Scotland represents an emerging market segment with significant growth potential driven by renewable energy integration and government support for clean technology development. Scottish initiatives in battery recycling and sustainable manufacturing processes create opportunities for innovative companies focused on circular economy principles. The region’s abundant renewable energy resources provide competitive advantages for energy-intensive battery manufacturing operations.

Wales contributes to market development through specialized manufacturing capabilities and strategic partnerships with international battery companies. Welsh government incentives and support programs encourage investment in advanced battery technologies and manufacturing infrastructure. The region’s focus on automotive supply chain development creates opportunities for battery component manufacturers and supporting service providers.

Northern Ireland maintains a smaller but strategically important market presence through cross-border collaboration with the Republic of Ireland and connections to European supply chains. The region’s emphasis on technology innovation and research partnerships supports development of specialized battery applications and niche market opportunities. Investment in charging infrastructure and electric vehicle adoption programs drives demand for battery systems across various vehicle categories.

Competitive Landscape

Market leadership within the United Kingdom lithium-ion battery for electric vehicle market reflects a diverse ecosystem of international manufacturers, domestic companies, and automotive OEMs developing integrated battery solutions. The competitive landscape continues to evolve as new entrants establish operations while existing players expand capabilities and market presence.

1. CATL – Leading Chinese battery manufacturer with significant UK market presence through automotive OEM partnerships and technology licensing agreements
2. LG Energy Solution – Major Korean battery supplier serving multiple UK automotive manufacturers with advanced lithium-ion battery systems
3. Panasonic – Established Japanese manufacturer providing high-performance battery solutions for premium electric vehicle applications
4. Samsung SDI – Korean battery technology company focusing on innovative battery chemistries and manufacturing processes
5. BYD – Integrated Chinese manufacturer offering complete electric vehicle and battery system solutions
6. Northvolt – European battery manufacturer with planned UK operations focusing on sustainable battery production
7. Britishvolt – UK-based battery manufacturer developing domestic gigafactory capabilities for European markets
8. AMTE Power – British battery technology company specializing in high-performance lithium-ion cells for automotive applications

Competitive strategies focus on technological differentiation, cost optimization, and strategic partnerships with automotive manufacturers. Companies are investing heavily in research and development to achieve competitive advantages in energy density, charging speed, and battery life. Manufacturing scale, supply chain integration, and customer relationships represent key competitive factors influencing market positioning and growth opportunities.

Segmentation

By Battery Type:

• Lithium Nickel Manganese Cobalt (NMC): Dominant battery chemistry offering balanced performance characteristics for passenger vehicle applications
• Lithium Iron Phosphate (LFP): Growing segment focused on safety and cost-effectiveness for commercial vehicle applications
• Lithium Nickel Cobalt Aluminum (NCA): Premium battery chemistry providing high energy density for luxury vehicle segments
• Other Chemistries: Emerging technologies including solid-state and advanced lithium-metal batteries

By Vehicle Type:

• Passenger Cars: Largest market segment including battery electric vehicles and plug-in hybrid electric vehicles
• Commercial Vehicles: Rapidly growing segment encompassing delivery vans, trucks, and specialty commercial applications
• Two-wheelers: Emerging segment including electric motorcycles and scooters with specialized battery requirements
• Public Transportation: Buses and other public transport vehicles requiring high-capacity battery systems

By Application:

• Battery Electric Vehicles (BEV): Pure electric vehicles requiring high-capacity battery systems for extended range
• Plug-in Hybrid Electric Vehicles (PHEV): Hybrid vehicles with substantial battery capacity for electric-only operation
• Hybrid Electric Vehicles (HEV): Traditional hybrids with smaller battery systems for efficiency optimization

Category-wise Insights

Passenger vehicle batteries represent the largest market category, driven by increasing consumer adoption of electric vehicles and government incentives supporting private vehicle electrification. This category benefits from continuous technological improvements in energy density and cost reduction initiatives that make electric vehicles more competitive with internal combustion engine alternatives. Market growth is supported by expanding model availability and improved charging infrastructure accessibility.

Commercial vehicle batteries constitute the fastest-growing market category as businesses adopt electric fleets to meet sustainability objectives and reduce operating costs. Last-mile delivery applications drive significant demand for specialized battery systems optimized for urban operating conditions and frequent charging cycles. The commercial segment requires robust battery solutions capable of supporting heavy-duty applications while maintaining cost-effectiveness.

Premium vehicle batteries focus on high-performance applications requiring advanced battery technologies and superior energy density characteristics. This category supports luxury electric vehicles with extended range requirements and fast-charging capabilities. Premium battery systems often incorporate cutting-edge technologies and materials that eventually migrate to mass-market applications as costs decrease and manufacturing scales increase.

Specialty applications include emergency vehicles, public transportation, and niche automotive segments requiring customized battery solutions. These applications often demand specific performance characteristics such as extreme weather operation, rapid charging capabilities, or extended service life. The specialty category provides opportunities for high-value battery solutions with premium pricing and specialized technical requirements.

Key Benefits for Industry Participants and Stakeholders

Automotive manufacturers benefit from access to advanced lithium-ion battery technologies that enable competitive electric vehicle offerings with improved performance and cost characteristics. Strategic partnerships with battery suppliers provide technology access and supply chain security while reducing development costs and time-to-market for new electric vehicle models. Integration of advanced battery systems supports brand differentiation and market positioning in the rapidly evolving electric vehicle landscape.

Battery manufacturers gain access to a growing market with substantial long-term demand driven by regulatory mandates and consumer adoption trends. The UK market provides opportunities for manufacturing scale development and technology commercialization while serving as a gateway to broader European markets. Investment in UK operations supports supply chain localization and reduces logistics costs for European automotive customers.

Government stakeholders achieve environmental and economic policy objectives through support for domestic battery industry development. The growth of battery manufacturing creates high-value employment opportunities, supports industrial competitiveness, and contributes to carbon emission reduction goals. Strategic investment in battery technology development enhances national energy security and technological sovereignty.

Consumers benefit from improved electric vehicle performance, reduced costs, and expanded model availability resulting from competitive battery market dynamics. Access to advanced battery technologies addresses historical concerns about electric vehicle range, charging time, and reliability. Market competition drives continuous improvement in battery performance while reducing total cost of ownership for electric vehicle buyers.

SWOT Analysis

Strengths:

• Government Support: Comprehensive policy framework supporting electric vehicle adoption and battery industry development
• Automotive Heritage: Established automotive manufacturing base providing foundation for battery integration capabilities
• Research Excellence: World-class universities and research institutions driving battery technology innovation
• Market Access: Strategic location providing access to European markets and established trade relationships

Weaknesses:

• Raw Material Dependence: Limited domestic sources of critical battery materials creating supply chain vulnerability
• Manufacturing Scale: Relatively small domestic market limiting economies of scale for battery production
• Infrastructure Gaps: Insufficient charging infrastructure in certain regions limiting electric vehicle adoption
• Cost Competitiveness: Higher manufacturing costs compared to established Asian battery production centers

Opportunities:

• Export Markets: Potential to serve broader European demand for advanced battery systems
• Technology Leadership: Opportunities to develop breakthrough battery technologies through research collaboration
• Circular Economy: Development of comprehensive battery recycling and lifecycle management capabilities
• Supply Chain Integration: Creation of integrated battery supply chains from materials to finished products

Threats:

• International Competition: Intense competition from established Asian battery manufacturers with cost advantages
• Technology Disruption: Potential for breakthrough technologies to disrupt existing lithium-ion battery markets
• Supply Chain Disruption: Vulnerability to global supply chain disruptions affecting critical materials
• Regulatory Changes: Potential changes in government policies affecting electric vehicle incentives and support programs

Market Key Trends

Gigafactory development represents a dominant trend as international battery manufacturers establish large-scale production facilities in the UK to serve European markets. These massive manufacturing investments create opportunities for supply chain localization and technology transfer while supporting domestic employment and economic development. The gigafactory model enables economies of scale that drive cost reductions and improve competitive positioning.

Battery chemistry evolution continues as manufacturers develop improved formulations that enhance performance while reducing costs and environmental impact. The transition toward nickel-rich cathodes and silicon-enhanced anodes represents significant technological advancement that improves energy density and charging characteristics. Additionally, growing interest in lithium iron phosphate chemistry for cost-sensitive applications creates new market opportunities.

Vertical integration emerges as automotive manufacturers seek greater control over battery supply chains and technology development. Major OEMs are establishing battery development capabilities and manufacturing partnerships to ensure supply security and technological differentiation. This trend creates opportunities for specialized component suppliers while potentially disrupting traditional battery manufacturer relationships.

Sustainability focus drives development of environmentally responsible battery production processes and comprehensive recycling programs. Companies are investing in sustainable manufacturing techniques that reduce carbon footprint and environmental impact while developing closed-loop recycling systems. This sustainability emphasis creates competitive advantages and supports regulatory compliance objectives.

Digital integration transforms battery systems through advanced battery management systems, predictive analytics, and connectivity features that optimize performance and extend service life. Smart battery technologies enable real-time monitoring, predictive maintenance, and performance optimization that enhance user experience and reduce total cost of ownership.

Key Industry Developments

Manufacturing investments have accelerated significantly as international battery companies commit substantial capital to UK production facilities. Recent announcements include major gigafactory projects that will create thousands of jobs while establishing the UK as a key European battery production hub. These investments reflect confidence in long-term market growth and the UK’s strategic importance within the global automotive supply chain.

Technology partnerships between UK universities, government agencies, and private companies are advancing next-generation battery technologies with potential for global commercialization. Collaborative research initiatives focus on solid-state batteries, advanced materials, and improved manufacturing processes that could provide competitive advantages in international markets. These partnerships leverage UK research excellence while supporting technology transfer and commercialization.

Regulatory developments include implementation of battery passport systems, enhanced recycling requirements, and updated safety standards that influence market structure and competitive dynamics. New regulations support circular economy principles while ensuring battery safety and performance standards. These regulatory changes create opportunities for companies that proactively address compliance requirements.

Supply chain initiatives focus on developing domestic capabilities for critical battery materials and components to reduce dependence on international suppliers. Strategic partnerships and investment programs support development of integrated supply chains that enhance security and reduce costs. According to MWR analysis, these supply chain developments could reduce UK battery production costs by approximately 15-20% over the next five years.

Analyst Suggestions

Strategic positioning recommendations emphasize the importance of technology differentiation and supply chain security for companies operating in the United Kingdom lithium-ion battery market. Companies should focus on developing specialized capabilities that provide competitive advantages while building resilient supply chains that can withstand global disruptions. Investment in research and development activities will be critical for maintaining technological leadership and market relevance.

Market entry strategies should consider the unique characteristics of the UK market including regulatory requirements, customer preferences, and competitive dynamics. New entrants should evaluate partnership opportunities with established automotive manufacturers or technology companies to accelerate market penetration and reduce development costs. Strategic alliances can provide access to distribution channels, technical expertise, and customer relationships.

Investment priorities should focus on manufacturing scale development, technology innovation, and supply chain integration to achieve competitive positioning in the growing market. Companies should prioritize investments in automated manufacturing systems that improve efficiency and reduce costs while maintaining quality standards. Additionally, investment in recycling capabilities and circular economy initiatives will become increasingly important for long-term sustainability.

Risk management strategies must address supply chain vulnerabilities, technology disruption risks, and regulatory changes that could impact market dynamics. Companies should develop diversified supplier networks and maintain strategic inventory levels to mitigate supply chain disruptions. Continuous monitoring of technological developments and regulatory changes will enable proactive adaptation to market evolution.

Future Outlook

Market projections indicate sustained growth for the United Kingdom lithium-ion battery for electric vehicle market driven by regulatory mandates, technological advancement, and increasing consumer acceptance. The market is expected to experience robust expansion with compound annual growth rates exceeding industry averages as domestic manufacturing capabilities mature and export opportunities develop. Long-term growth prospects remain positive despite potential short-term challenges related to supply chain constraints and competitive pressures.

Technology evolution will continue to drive market transformation as next-generation battery technologies achieve commercial viability and widespread adoption. Solid-state batteries and advanced lithium-metal technologies represent significant opportunities for performance improvement and cost reduction. The successful commercialization of these technologies could reshape competitive dynamics and create new market opportunities for innovative companies.

Manufacturing expansion will establish the UK as a significant European battery production hub with capacity to serve both domestic and export markets. Planned gigafactory developments will create substantial production capacity while supporting supply chain localization and technology development. This manufacturing expansion will enhance UK competitiveness while reducing dependence on imported battery systems.

Market maturation will bring increased competition, standardization, and cost optimization as the industry evolves toward mainstream adoption. Companies that successfully navigate this transition through technological innovation, operational efficiency, and strategic positioning will be best positioned for long-term success. MarkWide Research projects that market leaders will achieve market share gains of 25-30% through strategic investments and competitive differentiation.

Conclusion

The United Kingdom lithium-ion battery for electric vehicle market represents a dynamic and rapidly evolving sector with substantial growth potential driven by regulatory support, technological innovation, and increasing market adoption. The market benefits from strong government commitment to electric vehicle transition, significant manufacturing investments, and a favorable competitive environment that supports both established players and emerging companies.

Strategic opportunities abound for companies that can successfully navigate the complex market dynamics while developing differentiated capabilities and sustainable competitive advantages. The combination of domestic demand growth, export potential, and technology leadership opportunities creates a compelling investment environment for battery manufacturers, automotive companies, and supporting service providers.

Long-term success will require continuous innovation, operational excellence, and strategic adaptation to evolving market conditions and customer requirements. Companies that invest in advanced technologies, build resilient supply chains, and develop strong customer relationships will be best positioned to capitalize on the substantial growth opportunities within the United Kingdom lithium-ion battery for electric vehicle market.