期刊
ELECTROCHIMICA ACTA
卷 241, 期 -, 页码 553-559出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.04.129
关键词
flame-retardant; composite polymer electrolyte; magnesium hydroxide; safety; lithium-ion polymer battery
资金
- Energy Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)-Ministry of Trade, Industry & Energy, Republic of Korea [20142010102980]
- Technology Innovation Program-Ministry of Trade, industry & Energy (MI, Korea) [10067183]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10067183, 20142010102980] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Anewcomposite polymerelectrolyte (CPE) containing aflame-retardant material, Mg(OH)(2), isfabricatedvia a two-step process: porous poly(vinylidene-co-hexafluoropropylene) films composited with different Mg (OH)(2) contents are first prepared via casting and extraction steps, and they are then impregnated with a liquid electrolyte. As the Mg(OH)(2) content in the CPEs increases, their flame-retardant properties are greatly improved compared to those of the bare polymer electrolyte. Moreover, the better wettability of Mg(OH)(2) toward a liquid electrolyte leads to higher ionic conductivities of CPEs, thereby resulting in a better rate capability in LiCoO2/ graphite lithium-ion polymer batteries (LiPBs). However, the Mg(OH)(2) content must be limited to less than 40 wt% to maintain the mechanical properties of the corresponding CPEs. (C) 2017 Elsevier Ltd. All rights reserved.
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