Preparation and Properties of Polyvinylidene Fluoride@Diatomite Fiber Membranes by Eletrospinning as Separator of Lithium-Ion Batteries

doi:10.11944/j.issn.1000-0518.2020.12.200149

Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (12): 1441-1446.DOI: 10.11944/j.issn.1000-0518.2020.12.200149

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Preparation and Properties of Polyvinylidene Fluoride@Diatomite Fiber Membranes by Eletrospinning as Separator of Lithium-Ion Batteries

LIU Lixin^a, DONG Jianhong^a, ZHANG Guanghui^a*, ZHU Luyi^a, WANG Xinqiang^a, XU Dong^a, CHOW Yuktak^b

^aState Key Laboratory of Crystal Materials,Institute of Crystal Materials,Shandong University,Ji'nan 250100,China;
^bDepartment of Electrical Engineering,City University of Hong Kong,Hong Kong,China

Received:2020-05-18 Revised:2020-06-29 Accepted:2020-08-05 Published:2020-12-01 Online:2020-12-07
Contact: ZHANG Guanghui, associate professor; Tel:0531-88361332; E-mail:ghzhang@sdu.edu.cn; Research interests:reparation and application of zirconia fiber paper-based materials
Supported by:
National Natural Science Foundation of China(No. 51472144), Shandong University Young Scholars Program(No.2016WLJH27) and the Fundamental Research Funds for the Central Universities(No.2082019014)

Abstract

Abstract: Using polyvinylidene fluoride (PVDF) and diatomite as raw materials, PVDF@diatomite composite fiber membranes were prepared by electrospinning for lithium-ion battery. The electrolyte absorption rate, thermal stability and electrochemical properties of the separators were investigated. The addition of diatomite can effectively improve the electrolyte absorption rate and electrochemical performance of the composite separators. The electrolyte uptake is up to 623.6%. Compared with PVDF and polypropylene (PP) separators, it has excellent cycle and rate performance.

Key words: lithium-ion battery, separator, polyvinylidene fluoride, diatomite

CLC Number:

O646

LIU Lixin, DONG Jianhong, ZHANG Guanghui, ZHU Luyi, WANG Xinqiang, XU Dong, CHOW Yuktak. Preparation and Properties of Polyvinylidene Fluoride@Diatomite Fiber Membranes by Eletrospinning as Separator of Lithium-Ion Batteries[J]. Chinese Journal of Applied Chemistry, 2020, 37(12): 1441-1446.

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Preparation and Properties of Polyvinylidene Fluoride@Diatomite Fiber Membranes by Eletrospinning as Separator of Lithium-Ion Batteries

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