Carboxylated polyimide separator with excellent lithium ion transport properties for a high-power density lithium-ion battery
作者： Chun-Er Lin , Hong Zhang , You-Zhi Song , Yin Zhang , Jia-Jia Yuan
DOI: 10.1039/C7TA08702K
关键词: Ion 、 Alkali metal 、 Polyimide 、 Ionic conductivity 、 Materials science 、 Chemical engineering 、 Separator (electricity) 、 Lithium ion transport 、 Lithium-ion battery 、 Surface modification
摘要: The improvement of lithium ion transport properties, along with the ever-increasing demand for high-power density, is key to boosting the development of lithium-ion batteries. Here, we present a new class of carboxylated polyimide (PI) separator, which can be fabricated via an alkali treatment-based surface modification. The–COOH groups with unshared electron pairs were proposed to contribute to the desolvation of lithium ions and an increase in the lithium ion transport rate. Notably, the modification did not destroy the microstructure of the …
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