Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11000498 | Electrochimica Acta | 2018 | 10 Pages |
Abstract
A polymer matrix of poly(acrylonitrile-maleic anhydride) (P(AN-MAH)) is used to prepare a novel porous membranes by phase inversion. The membranes are immersed into liquid electrolyte to form gel polymer electrolyte (GPE) used in lithium ion batteries (LIBs). The results indicate that P(AN-MAH) is successfully synthesized and the membrane of P(AN-MAH) copolymer with adding mass ratios of AN: MAHâ¯=â¯4:1 exhibits superior pore structure and better thermal stability compared with that of pure PAN membrane, which endows the corresponding GPE with excellent comprehensive performances: the considerable ionic conductivity (3.03â¯Ãâ¯10â3â¯Sâ¯cmâ1 at room temperature), fine compatibility between GPE and electrode, eminent lithium transference number (tLi+â¯=â¯0.57), and high enough electrochemical stability potential (up to 5.4â¯V (vs. Li/Li+)). Accordingly, in constant current charging/discharging cycle, the prepared battery for the GPE also presents excellent initial discharge capacity, C-rate and cycling performances.
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Physical Sciences and Engineering
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Authors
Yixuan Huang, Yun Huang, Bo Liu, Haijun Cao, Lei Zhao, Amin Song, Yuanhua Lin, Mingshan Wang, Xing Li, Zengping Zhang,