Top 10 Companies in the Ultra‑thin Lithium Battery Copper Foil Market (2026): Market Leaders Powering Global Battery Innovation

MARKET INSIGHTS

Global Ultra‑thin Lithium Battery Copper Foil market size was valued at USD 3.25 billion in 2024. The market is projected to grow from USD 3.72 billion in 2025 to USD 9.5 billion by 2034, exhibiting a CAGR of 12.5% during the forecast period.

Ultra‑thin lithium battery copper foil is a critical component in lithium‑ion batteries, functioning as the negative electrode current collector. This specialized foil is characterized by its extremely thin profile, typically measuring 6 micrometers or less, which is essential for enhancing battery energy density and overall performance. The material enables higher capacity, improved charge‑discharge efficiency, and greater flexibility in battery design.

The market is experiencing robust growth driven primarily by the global transition to electric vehicles, which is accelerating demand for high‑performance batteries. Furthermore, continuous expansion in consumer electronics requiring longer battery life and rapid technological advancements in battery manufacturing are propelling market expansion. Key industry players are actively investing in capacity expansion; for instance, SK Nexilis announced in Q1 2024 a significant investment to increase its production capacity for ultra‑thin copper foil to meet rising automotive sector demand. Major manufacturers such as Nuode, Iljin Materials, and Solus Advanced Materials are leading the market with extensive product portfolios and strategic developments.

Ultra‑thin Lithium Battery Copper Foil Market – View in Detailed Research Report

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Top 10 Companies in the Ultra‑thin Lithium Battery Copper Foil Market (2026)

1️⃣ Nuode (China)

Headquarters: Shanghai, China
Key Offering: 6 µm and <6 µm ultra‑thin copper foils for automotive and consumer electronics

Nuode has rapidly expanded its production capacity through state‑of‑the‑art electrodeposition lines, positioning itself as a preferred supplier for Tier‑1 battery manufacturers. Its foils are known for exceptional uniformity and low surface roughness, enabling higher energy densities in next‑generation EV cells.

Sustainability & Growth Initiatives:

• Investing USD 150 million in green energy‑powered rolling facilities
• Partnership with a leading EV OEM to co‑develop high‑performance foils
• Targeting carbon‑neutral production by 2030

2️⃣ SK Nexilis (South Korea)

Headquarters: Seoul, South Korea
Key Offering: Advanced electrodeposition foils <6 µm for automotive and grid storage

SK Nexilis announced a USD 200 million expansion in 2024 to double its 6 µm foil output, reinforcing its supply chain for the rapidly growing EV market in Asia and North America.

Sustainability & Growth Initiatives:

• Integration of renewable energy sources in production plants
• Collaboration with battery chemists to tailor surface treatments for solid‑state batteries
• Commitment to ESG compliance across the supply chain

3️⃣ Iljin Materials (South Korea)

Headquarters: Gyeonggi‑do, South Korea
Key Offering: High‑performance grade foils (≤5 µm) for automotive and high‑end consumer electronics

Iljin’s proprietary hybrid electrodeposition process delivers superior tensile strength and conductivity, enabling longer cycle life in EV batteries.

Sustainability & Growth Initiatives:

• Development of recycled copper feedstock program
• Investment in AI‑driven quality control systems
• Expansion of production footprint to Japan and Vietnam

4️⃣ Solus Advanced Materials (South Korea)

Headquarters: Seoul, South Korea
Key Offering: Premium ultra‑high purity foils for high‑energy density EV cells

Solus focuses on ultra‑clean copper streams and advanced surface coatings to reduce defects and improve battery safety.

Sustainability & Growth Initiatives:

• Partnership with a leading battery research institute for next‑generation materials
• Implementation of closed‑loop water recycling in manufacturing
• Targeting 90% of raw material sourcing from recycled sources by 2035

5️⃣ Jiujiang Defu Technology (China)

Headquarters: Jiujiang, China
Key Offering: Custom thickness foils (3–6 µm) for automotive and IoT devices

Jiujiang Defu has carved a niche by offering highly customizable foil thicknesses and surface treatments, catering to emerging wearable and sensor markets.

Sustainability & Growth Initiatives:

• Investment in low‑energy electrodeposition technology
• Collaboration with local copper mines to secure supply chains
• Development of a carbon‑offset program for production facilities

6️⃣ CCP (China)

Headquarters: Shenzhen, China
Key Offering: 6 µm and <6 µm foils for automotive and consumer electronics

CCP’s large‑scale rolling and electrodeposition lines allow rapid scaling to meet global demand spikes.

Sustainability & Growth Initiatives:

• Adoption of renewable energy in all production sites
• Implementation of ISO 14001 environmental management systems
• Strategic alliances with battery component suppliers

7️⃣ Guangdong Jia Yuan Tech (China)

Headquarters: Guangzhou, China
Key Offering: High‑performance foils for automotive and energy storage

Jia Yuan Tech leverages advanced surface treatment technologies to enhance foil conductivity and longevity.

Sustainability & Growth Initiatives:

• Investing in research for biodegradable copper alloys
• Collaboration with EV manufacturers on joint R&D
• Reducing CO₂ emissions by 30% by 2030

8️⃣ Anhui Tongguan Copper Foil (China)

Headquarters: Hefei, China
Key Offering: Custom <6 µm foils for automotive and industrial applications

Tongguan focuses on high‑precision electrodeposition to meet stringent battery specifications.

Sustainability & Growth Initiatives:

• Development of a circular economy model for copper recycling
• Partnership with battery recycling firms
• Investment in smart manufacturing platforms

9️⃣ WASON (China)

Headquarters: Shanghai, China
Key Offering: 6 µm foils for automotive and consumer electronics

WASON’s integrated production system allows rapid response to market demand changes.

Sustainability & Growth Initiatives:

• Implementation of zero‑waste policies in production
• Collaboration with EV OEMs for supply chain transparency
• Targeting 80% renewable energy usage by 2032

🔟 Furukawa Electric (Japan)

Headquarters: Tokyo, Japan
Key Offering: Premium foils for automotive and high‑end consumer electronics

Furukawa Electric’s long history in copper processing gives it a competitive edge in quality and reliability.

Sustainability & Growth Initiatives:

• Investing in advanced electrodeposition equipment with lower energy consumption
• Partnership with battery manufacturers to develop eco‑friendly surface coatings
• Commitment to achieving carbon neutrality by 2040

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Outlook: The Future of Ultra‑thin Lithium Battery Copper Foil

The ultra‑thin copper foil market is poised for transformative growth as battery technologies evolve toward higher energy densities and safer chemistries. Key drivers include the accelerated adoption of electric vehicles, the expansion of renewable energy storage systems, and the emergence of solid‑state batteries, all of which demand thinner, more conductive, and higher‑purity copper foils. Manufacturers that can innovate in electrodeposition processes, reduce production energy consumption, and secure sustainable raw material sources will lead the market.

Future Trends Shaping the Market

• Rapid scaling of production capacity in Asia-Pacific to meet global EV demand.
• Development of copper foils tailored for solid‑state battery architectures.
• Increased focus on ESG compliance and circular economy practices.
• Strategic partnerships between copper foil manufacturers and battery OEMs for joint R&D.
• Adoption of AI and IoT for real‑time quality control and supply chain optimization.