An aramid membrane with good electrolyte wettability, high ionic conductivity, excellent inflame retarding property and superior thermal resistance has been successfully fabricated via a facile papermaking process for improving the safety characteristic of lithium ion battery. The aramid membrane endows the lithium cobalt oxide (LiCoO2)/graphite cell superior cycle performance and better interfacial flexibility. In addition, the lithium iron phosphate (LiFePO4)/lithium cell using such aramid membrane exhibited stable charge–discharge profiles and satisfactory cycling stability even at an elevated temperature of 120 °C. These fascinating characteristics and facile papermaking method provide potential application as separator in high energy lithium ion battery.
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Zhang et al. (2013) studied this question.
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