Lithium ion battery fabricated by curable copolyester/Al₂O₃ composite-coated nonwoven poly(ethylene terephthalate) separator

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• 作者：Youngjun Ko ; Hyuk Yoo ; Soo-Jung Kang ; Jinhwan Kim
• 关键词：Li ; ion battery ; separator ; nonwoven PET ; curable binder ; composite
• 刊名：Macromolecular Research
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：25
• 期：1
• 页码：5-10
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Physical Chemistry; Characterization and Evaluation of Materials; Nanochemistry; Nanotechnology;
• 出版者：The Polymer Society of Korea
• ISSN：2092-7673
• 卷排序：25

文摘

The advantages of a curable copolyester (Ester)/Al₂O₃ composite and nonwoven poly(ethylene terephthalate) (NWPET) separator were combined in attempt to develop a separator system for lithium ion batteries that is predicted to be quite stable at high temperatures, up to 200 00B0;C. Various properties of separators, including the battery performance of unit cells fabricated from them, were investigated. The curable copolyester/Al₂O₃ compositecoated nonwoven PET (Ester-NWPET) separator remained quite stable up to 200 °C when exposed in polycarbonate. In battery performance tests, the Ester-NWPET separator showed better cycle life than bare polyethylene (PE) separator because of enhanced wettability of the developed separator.