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Citation: Wang Zhan-Liang, Tang Zhi-Yuan, Geng Xin, Xue Jian-Jun. Research on Novel PMMAbased Gel Electrolyte for Lithium Ion Battery[J]. Acta Physico-Chimica Sinica, ;2002, 18(03): 272-275. doi: 10.3866/PKU.WHXB20020317 shu

Research on Novel PMMAbased Gel Electrolyte for Lithium Ion Battery

1.
School of Chemical Engineering and Technology,Tianjin University,Tianjin　300072

Received Date: 23 August 2001
Available Online: 15 March 2002

Novel PMMAbased electrolyte crosslinked by ethylene glycol dimethacrylate(EGD) for lithium ion battery is prepared. As the network structure, the mechanical property of the gelled electrolyte is improved. The content of methyl methacrylate(MMA) and EGD are optimized, and the temperature dependence of conductivity is investigated. The conductivity reaches 2×10－3 S•cm－1 in the polymer electrolyte containing 25％MMA, 2％ EGD and 73％ LiBF4 (mass fraction) in ethylene carbonate(EC)/dimethyl carbonate(DMC) at room temperature, and the electrochemical stability window is about 4.80 V versus lithium. The polymer lithium ion battery with gelled PMMAbased electrolyte exhibits od electrochemical property.
- Lithium ion battery;Polymer electrolyte;PMMA;Ethylene carbonatedimethyl carbonate(EC-DMC)
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