Preparation of Polymer Electrolyte for Lithium-ion Battery

Abstract

Abstract: With the final goal of developing lithium ion batteries having a plastic configuration, we have characterized a high conducting microporous PVDFplastic electrolyte for lithium ion batteries prepared by using the phase inversion process. Gel polymer electrolyte composed of PVDF-based microporous membrane, LiPF₆-EC/DECshow a high ionic conductivity (above 10^-3S/cm at room temperature), and good mechanical properties(10² kg/cm²). The half cells consisting of Li/GPE/MCMBshow excellent cycling characteristics and the stable discharge capacity is 306 mA·h/g. At a current density of 1.0 mA·h/cm²(0.5 C), the cell was shown to retain 79% of initial capacity after 100 cycles.

Key words: Lithium ion battery, Polymer electrolyte, PVDF, Phase inverse

CLC Number:

O641

TrendMD:

REN Xu-Mei, GU Hui, CHEN Li-Quan, WU Feng, HUANG Xue-Jie . Preparation of Polymer Electrolyte for Lithium-ion Battery[J]. Chem. J. Chinese Universities, 2002, 23(7): 1383.

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Preparation of Polymer Electrolyte for Lithium-ion Battery

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