锂离子电池储能装置安全性能分级评价方法

Classification Evaluation Method for Safety Performance of Lithium-Ion Battery Energy Storage Devices

针对锂离子电池相关安全事故主要由热失控引发进而以燃烧或爆炸的形式对周围产生严重破坏的特性,综合考虑热失控风险和热失控致灾性,提出了锂离子电池安全性能分级评价方法。进一步从功能完整性方面对电池管理系统建立了安全分级评价方法,其与锂离子电池安全性能分级评价方法可结合或独立运用于多种电池体系安全性能的分级评价。

In response to the characteristic that safety accidents related to lithium-ion batteries are mainly caused by thermal runaway,which in turn causes serious damage to the surrounding area in the form of combustion or explosion,a safety performance grading evaluation method for lithium-ion batteries was proposed by comprehensively considering the risk and disaster caused by thermal runaway.Furthermore,a safety classification evaluation method was established for the battery management system(BMS)from the perspective of functional integrity,which can be combined with the safety performance classification evaluation method for lithium-ion batteries or independently applied to evaluate the safety performance of various battery systems.