The Global SEI Film-forming Additives in Lithium Battery Electrolyte Market was valued at USD 828 million in 2024 and is projected to reach USD 1.66 billion by 2031, growing at a Compound Annual Growth Rate (CAGR) of 10.7% during the forecast period (2024–2031). This expansion is fueled by booming electric vehicle production, growing energy storage demands, and increasing emphasis on battery safety and longevity.

SEI film-forming additives perform a critical function in lithium-ion batteries, forming a protective solid electrolyte interphase layer that prevents unwanted chemical reactions, reduces electrolyte decomposition, and enhances overall battery performance. In this blog we examine the Top 10 Market Leaders in SEI additive production – a mix of specialized chemical companies and battery material innovators shaping the future of energy storage technologies.

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🔟 1. Capchem Technology Co., Ltd.

Headquarters: Shenzhen, China
Key Products: VC, FEC, DTD and other electrolyte additives

Capchem is China’s leading manufacturer of electronic chemicals and lithium battery materials, supplying additives to major battery producers worldwide. The company invests heavily in R&D for next-generation electrolyte formulations.

Innovation Focus:

• Advanced additive formulations for high-nickel batteries
• Proprietary production processes for high-purity additives
• Strategic partnerships with cell manufacturers

Download FREE Sample Report: SEI Film-forming Additives in Lithium Battery Electrolytes Market – View in Detailed Research Report

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9️⃣ 2. Suzhou Huayi Technology

Headquarters: Suzhou, China
Key Products: Vinyl sulfate (DTD), lithium salt additives

Specializing in fine chemicals for lithium batteries, Suzhou Huayi has become a key supplier of high-performance SEI formation additives, particularly for high-voltage battery applications.

Innovation Focus:

• High-voltage additive development
• Thermal stability enhancement solutions
• Custom formulations for advanced battery chemistries

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8️⃣ 3. Yongtai Technology Co., Ltd.

Headquarters: Zhejiang, China
Key Products: VC, FEC and multi-functional additives

Yongtai has established itself as a major producer of battery electrolyte additives, with significant capacity expansion projects underway to meet growing market demand.

Innovation Focus:

• Multi-functional additive development
• Low-temperature performance enhancers
• Cost-effective production technologies

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7️⃣ 4. Hancock Chemical

Headquarters: Hebei, China
Key Products: Vinyl carbonate (VC), biphenyl additives

With 20+ years of experience in fine chemical production, Hancock has developed advanced SEI-forming additives that contribute to superior battery cycle life.

Innovation Focus:

• High-purity VC production
• Next-gen additive combinations
• Patent-protected formulations

Download FREE Sample Report: SEI Film-forming Additives in Lithium Battery Electrolytes Market – View in Detailed Research Report

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6️⃣ 5. Zhejiang Tianshuo Technology

Headquarters: Zhejiang, China
Key Products: FEC, VC, and lithium hexafluorophosphate

Tianshuo specializes in electrolyte salt and additive production, offering complete electrolyte solutions to battery manufacturers across Asia.

Innovation Focus:

• Integrated electrolyte component production
• Additive-salt compatibility research
• Fast-charging optimization additives

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5️⃣ 6. Tinci Materials Technology Co., Ltd.

Headquarters: Guangzhou, China
Key Products: Specialized SEI formation additives

Tinci develops advanced chemical materials for lithium batteries, with particular expertise in additives for high-energy-density applications.

Innovation Focus:

• Silicon anode compatible additives
• High-temperature performance enhancers
• Additives for solid-state battery development

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4️⃣ 7. Fujian Chuangxin Technology

Headquarters: Fujian, China
Key Products: VC, FEC and proprietary additive blends

This specialist additive producer has gained recognition for its customized additive solutions for different battery chemistries and applications.

Innovation Focus:

• Application-specific additive packages
• Cost-performance optimized formulations
• New additive molecular development

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3️⃣ 8. Qingmu High-Tech

Headquarters: Jiangsu, China
Key Products: High-purity electrolyte additives

Qingmu focuses on producing ultra-high purity additives that meet the stringent requirements of premium battery manufacturers.

Innovation Focus:

• Nanometer purification processes
• Trace impurity control
• Additive stability enhancement

Download FREE Sample Report: SEI Film-forming Additives in Lithium Battery Electrolytes Market – View in Detailed Research Report

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2️⃣ 9. Jiangsu Huasheng

Headquarters: Jiangsu, China
Key Products: Vinyl carbonate and fluorinated additives

With strong technical expertise in organic synthesis, Jiangsu Huasheng produces additive materials for both liquid and polymer electrolytes.

Innovation Focus:

• Multi-functional additive molecules
• Polymer electrolyte compatibility
• Scaling production efficiencies

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1️⃣ 10. Shandong Sinocure Chemical

Headquarters: Shandong, China
Key Products: VC, FEC and additive stabilizers

Sinocure has developed proprietary stabilization technologies that extend the shelf life and effectiveness of SEI-forming additives.

Innovation Focus:

• Additive stabilization technology
• Synergistic additive combinations
• Production process optimization

Get Full Report Here: SEI Film-forming Additives in Lithium Battery Electrolytes Market – View in Detailed Research Report

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🔋 Outlook: The Future of SEI Additives Is Smarter and More Functional

The SEI additive market is undergoing rapid transformation as battery technologies evolve. While traditional additives continue to dominate, the industry is investing heavily in next-generation formulations that address emerging battery challenges.

📈 Key Trends Shaping the Market:

• Development of multi-functional additives that serve multiple roles
• Increasing focus on silicon-anode compatible formulations
• Growing importance of low-temperature performance additives
• Rising demand for high-voltage battery additives

Get Full Report Here: SEI Film-forming Additives in Lithium Battery Electrolytes Market – View in Detailed Research Report

The companies profiled above are not just supplying critical materials – they’re enabling the next generation of battery performance that will power our electric future.