储备式叠层锂电池集流片的包覆结构

发布时间：2018-11-17 06:58

【摘要】：针对多单元储备式锂电池内部存在短路现象,影响整个电池放电性能的问题,提出了储备式叠层锂电池集流片包覆结构。该结构在电池集流片内圆端面包覆绝缘环,电极置于绝缘环内,可将相邻单元电极与电解液隔离开来。将改进后和改进前的多单元储备式锂电池分别在常温下以相同电流密度放电,试验结果表明:包覆集流片的电池放电电压、放电时间明显优于未包覆集流片的电池。同时减少了电池放热现象,从而提升了电池的放电性能以及电池的安全性。
[Abstract]:In order to solve the problem of short circuit inside the multi-unit reserve lithium battery, which affects the discharge performance of the battery, the collector coating structure of the reserve stacked lithium battery is proposed. The structure is coated with an insulating ring on the round end of the cell collector, and the electrode is placed in the insulating ring, which can separate the adjacent cell electrode from the electrolyte. The multi-unit reserve lithium battery was discharged at the same current density at room temperature. The experimental results show that the discharge voltage and discharge time of the battery coated with the collector are obviously better than those without the collector. At the same time, it reduces the heat release of the battery, and improves the discharge performance and the safety of the battery.
【作者单位】： 西安机电信息技术研究所;西安交通大学;
【基金】：预研支撑基金项目资助(62201070607)
【分类号】：TM912
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本文编号：2336871