2025-04-17 15:41Summary of Electric Vehicle Battery Safety Standards Conference Industry Overview - The conference focused on the electric vehicle (EV) battery industry, specifically discussing new safety standards for power batteries set to take effect in July 2026. [1][21] Key Points and Arguments - Current Battery Safety Performance: Only a few leading companies (C Company, B Company, and Yiwei Lithium Energy) have products that can achieve 30-60 minutes without burning or exploding, while less than 10% can meet the two-hour standard. [1][4] - New Safety Standards: The new national standard requires that after a thermal runaway event, the battery pack must not catch fire or explode for at least two hours, with all temperature points remaining below 60 degrees Celsius. This is a stricter requirement compared to previous standards. [2][21] - Material and Technology Improvements: Enhancements in battery safety hinge on material systems and technological applications, including optimizing electrode material density, improving separator heat resistance, and enhancing thermal runaway protection materials. [1][5][6] - Solid-State Batteries: Solid-state batteries show significant safety advantages, capable of achieving over 10 hours without fire or explosion, with temperature control below 60 degrees. This technology is seen as a future direction for the industry. [3][19] - Industry Restructuring: The new standards aim to regulate liquid battery safety, promote industry consolidation, and accelerate the commercialization of solid-state batteries. [3][21] Additional Important Insights - Battery Management System (BMS): The BMS must monitor battery parameters in real-time to prevent misjudgments or omissions, emphasizing the importance of advanced chip selection. [14][15] - Challenges in Material Development: The transition from artificial graphite to silicon-carbon/silicon-oxide for anode materials faces challenges such as volume expansion, which can lead to failures. [9][10] - Electrolyte Improvements: There is significant room for improvement in electrolytes, particularly through the addition of flame retardants to enhance safety. [12] - Impact of New Standards on Suppliers: The new standards may lead to some suppliers being unable to continue production due to insufficient R&D capabilities or manufacturing processes. [32] - Consequences of Non-Compliance: Batteries that do not meet the new standards will not be allowed to be installed in vehicles, leading to potential fines and brand damage for manufacturers. [19][33] Conclusion The conference highlighted the urgent need for the EV battery industry to adapt to new safety standards, emphasizing the importance of material innovation and technology upgrades to ensure compliance and enhance overall safety. The shift towards solid-state batteries is seen as a critical step in achieving these goals.