Abstract
Lithium_ion batteries are well adapted to the new multimedia applications. PP/PE based microporous film is commonly used as separator in commercial lithium ion batteries. Here we report a microporous film which is superior to the commercial available separator. The microporous PVDF polymer separators were prepared by the phase inversion process. The pore size of the separator is 7 μm, and it's porosity is 75%. The membrane in LiPF 6 EC/DEC showed high ionic conductivity (above 10 -3 S/cm at room temperature), and good mechanical properties (10 3 kg/cm 2). The half_cells consisted of Li/PVDF separator/MCMB showed excellent cycling characteristics and the stable discharge capacity is 302 mAh/g.
Keywords
Separator, Lithium ion battery, PVDF, Phase inverse
Publication Date
2001-05-28
Online Available Date
2001-05-28
Revised Date
2001-05-28
Received Date
2001-05-28
Recommended Citation
Xu-mei REN, Feng WU, Chuan WU, Han-jun LI, Xue-jie HUANG.
Preparation and Properties of Separator for Lithium-ion battery[J]. Journal of Electrochemistry,
2001
,
7(2): Article 17.
DOI: 10.61558/2993-074X.3255
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss2/17
References
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[3] FongR ,SackenU ,DahnJR .Studiesoflithiuminterclationintocarbonsusingnon_aqueouselectrochemicalcells[J].J .Electrochem .Soc .,1990 ,137:2 0 0 9
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