The Influence of Multiple Stimulations on the Unusual Delamination Phenomenon of a Li-Ion Battery Separator Prepared by a Wet Process,Industrial & Engineering Chemistry Research

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The Influence of Multiple Stimulations on the Unusual Delamination Phenomenon of a Li-Ion Battery Separator Prepared by a Wet Process
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-02-18 , DOI: 10.1021/acs.iecr.0c00089
Lei Ding ₁ , Daoxin Zhang ₁ , Tong Wu ₂ , Feng Yang ₁ , Fang Lan ₁ , Ya Cao ₁ , Ming Xiang ₁

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In this article, the unusual delamination phenomenon of LIB separators prepared by a wet process is reported. Meanwhile, a simple tearing test is proposed to quantify the delamination trend from the energy point of view and the effects of the tearing rate and temperature on the delamination trend of the separator were researched. Increasing the temperature makes separator delamination much more difficult, while the tearing rate has weaker effects on the separator delamination trend at lower temperatures but has a stronger influence at higher temperatures. In addition, the delamination trend of the separator in various electrolytes and under repeated compression cycles, which happened to the separator during battery cycles, is also investigated in detail. Also, the results show that the energy consumption per unit area during delamination decreases distinctly with increasing number of compression cycles, which was also influenced severely by different kinds of electrolytes with different Hildebrand interaction parameter.

中文翻译：

多次刺激对湿法制备锂离子电池隔膜异常脱层现象的影响

在本文中，报道了通过湿法制备的LIB隔板异常的分层现象。同时，从能量的角度出发，提出了一种简单的撕裂试验以量化分层趋势，并研究了撕裂速率和温度对隔板分层趋势的影响。温度升高使隔板分层更加困难，而撕裂速率在较低温度下对隔板分层趋势的影响较弱，但在较高温度下的影响较大。另外，还详细研究了在各种电解质中和在重复的压缩循环下隔板的分层趋势，这在电池循环期间发生在隔板上。也，

更新日期：2020-02-19

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