The Global Battery Vent Cap Market was valued at USD 1.42 Billion in 2024 and is projected to reach USD 2.52 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 8.7% during the forecast period (2024–2032). This growth is propelled by rising demand for lithium-ion batteries across electric vehicles, renewable energy storage systems, and portable electronics, along with increasingly stringent battery safety regulations worldwide.

As battery technologies advance toward higher energy densities, precision-engineered vent caps become critical safety components preventing thermal runaway events. This profile examines the Top 10 Battery Vent Cap Manufacturers—innovators combining advanced materials science with pressure management technologies to enable safer energy storage solutions globally.

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🔟 1. Kedali Industry

Headquarters: Shenzhen, China
Key Offering: Aluminum alloy vent caps, Smart venting systems

Kedali dominates the Asian battery vent cap sector with 18% market share, supplying major battery producers including CATL and BYD. The company specializes in high-precision pressure-activated venting solutions for automotive-grade lithium-ion batteries.

Technology Leadership:

• Patent-protected triple-layer membrane architecture
• Vent caps with integrated temperature and pressure sensors
• Automated production lines achieving 99.8% defect-free output

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9️⃣ 2. SANGSIN EDP

Headquarters: Seoul, South Korea
Key Offering: Stainless steel vent solutions, Multi-stage relief valves

SANGSIN supplies 12% of global EV battery vent caps, with its patented “Smart Vent” technology activating across six progressive pressure thresholds for enhanced thermal runaway prevention.

Technology Leadership:

• IP68-rated waterproof venting systems
• Direct BMS (Battery Management System) integration capabilities
• Snap-fit designs facilitating battery recycling processes

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8️⃣ 3. Fuji Springs

Headquarters: Tokyo, Japan
Key Offering: Micro-vent caps, Ceramic composite membranes

Fuji Springs specializes in sub-3mm venting solutions for compact batteries used in smartphones, wearables, and IoT devices, achieving industry-leading ±0.01mm activation precision.

Technology Leadership:

• Laser-drilled micro-vents with micron-level tolerances
• Gold-plated contacts preventing corrosion
• 100% automated optical quality inspection

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7️⃣ 4. Zhenyu Technology

Headquarters: Dongguan, China
Key Offering: High-pressure vent caps, Nickel alloy components

Zhenyu derives 32% of revenues from grid-scale storage projects, with vent caps engineered to withstand 10+ bar internal pressures in large-format batteries.

Technology Leadership:

• Military-grade 316L stainless steel construction
• Multi-directional gas dispersion channels
• Helium leak detection systems

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6️⃣ 5. LT Precision

Headquarters: Taoyuan, Taiwan
Key Offering: Thermally-activated vents, Shape-memory alloy mechanisms

LT Precision specializes in dual-response vent caps that activate based on both pressure and temperature changes, particularly valued in aerospace and defense applications.

Technology Leadership:

• Dual-mode (pressure + temperature) activation
• Self-resealing mechanisms post-activation
• MIL-STD-883 compliance for extreme environments

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5️⃣ 6. Red Fairy Precision

Headquarters: Suzhou, China
Key Offering: Custom vent cap solutions, Rapid prototyping

Red Fairy excels in low-volume, high-mix production of specialized venting solutions for niche battery formats and applications.

Technology Leadership:

• 72-hour prototype delivery
• Multi-material composite designs
• Application-specific computational fluid dynamics modeling

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4️⃣ 7. Alcha Aluminium

Headquarters: Düsseldorf, Germany
Key Offering: Sustainable aluminum vent caps, European-made solutions

Alcha leads in eco-friendly vent caps with 92% recycled aluminum content, meeting forthcoming EU battery sustainability mandates.

Technology Leadership:

• Closed-loop aluminum recycling system
• Low-carbon production processes
• Full REACH/ROHS compliance

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3️⃣ 8. Dongwon Systems

Headquarters: Busan, South Korea
Key Offering: Pouch cell venting solutions, Flexible membranes

Dongwon specializes in venting technologies for flexible pouch-format batteries, maintaining cell integrity while ensuring reliable pressure relief.

Technology Leadership:

• 0.2mm ultra-thin polymer composites
• Directional gas venting technology
• Laser sealing compatibility

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Battery Vent Cap Market – View Detailed Research Report

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2️⃣ 9. Shinheung SEC

Headquarters: Incheon, South Korea
Key Offering: Medical-grade vent caps, Cleanroom manufacturing

Shinheung operates Class 100 cleanrooms to produce particulate-free vent caps for medical and implantable battery applications.

Technology Leadership:

• Biocompatible material options
• Hermetic sealing technologies
• Full FDA/CE certification

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1️⃣ 10. JINYANG

Headquarters: Cheongju, South Korea
Key Offering: Cost-optimized vent caps, High-volume production

JINYANG delivers price-competitive solutions through highly automated manufacturing, serving cost-sensitive battery producers without compromising safety standards.

Technology Leadership:

• 35% lower production costs versus industry benchmarks
• 20,000+ unit/hour throughput capacity
• Lean manufacturing certified operations

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🔋 Market Outlook: The Evolution of Battery Safety

The battery vent cap sector is undergoing rapid transformation as new battery formats emerge and safety requirements escalate. While mechanical venting remains standard today, intelligent systems are gaining significant momentum across industries.

⚡ Key Industry Developments:

• Shift from passive to active pressure management systems
• Growing implementation of sensor-equipped smart vents (pressure/temperature/gas composition)
• Material breakthroughs enabling higher activation pressures (15+ bar)
• Standardization efforts for cylindrical cell vent interfaces

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Battery Vent Cap Market – View Detailed Research Report

These market leaders represent more than component suppliers—they are critical enablers of safer, higher-performance energy storage systems powering our electrified future.