来源:财联社
财联社4月15日电,电动电池工信部组织制定的汽车强制性国家标准《电动汽车用动力蓄电池安全要求》(GB38031-2025)日前发布,将于2026年7月1日起开始实施。新国宋氏三姐妹本次修订内容主要有修订热扩散测试,于年月日进一步明确待测电池温度要求、施行上下电状态、电动电池观察时间、汽车整车测试条件,新国技术要求从此前的于年月日着火、爆炸前5分钟提供热事件报警信号等,施行宋氏三姐妹调整为不起火、电动电池不爆炸(仍需报警),汽车烟气不对乘员造成伤害等;新增底部撞击测试,新国考查电池底部受到撞击后的于年月日防护能力;新增快充循环后安全测试,300次快充循环后进行外部短路测试,施行要求不起火、不爆炸等。此外,修订版本明确本标准适用于电动汽车用动力电池,即非驱动类电池不适用;完善绝缘电阻要求,增加包含交流电路电池系统绝缘电阻要求;提升挤压测试要求,增加绝缘电阻相关判定条件。
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