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【Case Share】The application of Revealer high-speed camera in lithium battery combustion experiment

近几年，随着锂电自燃爆炸事件不断频发，产品质量受到了广泛关注。导致锂电池发生爆炸的原因有很多，如隔膜损坏、温度过高等。电池爆炸燃烧瞬间，燃烧速度快、范围广，一定程度上存着极大的安全隐患。

图片

锂电池燃烧与其内部结构和质量有着很大的关系，某高校火灾实验室进行锂电池燃烧实验时，使用千眼狼高速摄像机对锂电池电解液喷射过程和燃烧火焰进行观测，为研究锂电池安全性提供可靠数据。


锂电池燃烧实验

实验将圆柱形锂电池放置加热网上进行加热，高速摄像机在安全工作距离拍摄锂电池电解液喷射过程。

当加热到一定温度时，锂电池首先喷射电解液，随后开始燃烧。通过实验研究，进一步观察了解锂电池电解液喷射起始和燃烧范围，为锂电池生产工艺设计提供了有效数据。此次实验成果已应用在新型锂电池生产工艺中。


总结


电池密封不严、结构问题、电解液质量问题、极片粉尘、极片制作工艺较差等原因都会影响锂电池使用安全，改善锂电池生产工艺，把控产品质量关，千眼狼高速摄像机与锂电池在线瑕疵检测系统将起到重要作用。


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