课件：电池失效分析.ppt

Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * 电池失效分析 Dec. 2008 Tianjin Lishen Battery Joint-stock Co., Ltd * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * 目录 一: 8D分析方法 二:锂离子电池常见失效模式 三:关键控制参数 四:失效模式分析 五:与安全相关的要求 * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * 一: 8D分析方法 1. 主题 ---Concern Title 小组建立 ---Team Cross function 问题描述 ---Problem description What’s wrong with what? 4. 临时措施 ---Containment action Emergency response action to protect customer 措施验证 ---Verification of containment action prove your containment action is effective. 6. 原因分析 ---Root cause analysis 3why Fishbone 重现性实验 ---simulation testing to recur the defects 改善措施 ---Permanent Corrective Action 改善效果验证 ---Verification of Corrective Action Effectiveness 10. 防止再次发生 ---Actions Taken to Prevent Recurrence Document (Dfmea/Pfmea CP WI) 11. 庆祝 ---Congratulation * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * 二.锂离子电池常见失效模式 电池失效 电压低 内阻大 容量低 安全 漏液 其他 循环差 鼓胀(方/聚) 自放电 负载漏电流 短路 充电不足 --- 焊接 导电剂 接触(腐蚀) 电液 --- 涂敷量 温度 电阻 --- 过充 短路 过热 挤压 --- 焊接 注液孔 密封件 --- 焊接 注液孔 密封件 --- 受热 气胀 循环 --- 电液 电极 温度 循环条件 --- --- * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Client Privileged Communication * 三: 关键控制参数 粉浆 材料,配比,黏度,固含量,除铁… 涂敷 涂敷量,颗粒度,速度,温度,间隔,长度,对齐度,涂敷突起,基体… 碾压 碾压密度,平整度,厚度,反弹率… 剪切 毛刺, 收卷对齐度,宽度… 电极制造: Lamination: 覆盖涂敷宽度 * Lishen Battery Joint-Stock Co., Ltd. Propriety Confidential Attorney Cl