Title:
セラミック・ポリマー複合コーティングリチウムイオン電池用セパレーター及びその製造方法
Document Type and Number:
Japanese Patent JP6700406
Kind Code:
B2
Abstract:
Disclosed are a ceramic and polymer compositely coated lithium ion separator and a preparation method therefor. The ceramic and polymer compositely coated lithium ion separator comprises a polyolefin porous membrane, a ceramic coating coated onto one or both sides of a membrane surface, and a polymer coating coated onto a ceramic surface or the membrane surface. The composite separator prepared in the present disclosure significantly enhances heat resistance of the separator and bonding strength thereof with positive and negative pole pieces, improves the wettability of an electrolyte, can effectively prevent an internal short circuit due to layer dislocation between the separator and the electrodes, and also improves hardness and safety performance of the battery. Further disclosed is a method for preparing the ceramic and polymer compositely coated lithium ion separator, which method enables the preparation of a separator having even coating thickness of the ceramic coating and the polymer coating and good uniformity, and is favorable for continuous and large-scale production.
Inventors:
Liao, Peyron
Pin, shan
Yao, Yong Can
Tsang, Liu Hao
Chen, Liang
Pin, shan
Yao, Yong Can
Tsang, Liu Hao
Chen, Liang
Application Number:
JP2018542702A
Publication Date:
May 27, 2020
Filing Date:
December 29, 2017
Export Citation:
Assignee:
Shenchen Senior Technology Materials Company Limited
International Classes:
B32B5/18; B32B18/00; B32B27/32; H01M50/403; H01M50/417; H01M50/434; H01M50/451; H01M50/457; H01M50/489; H01M50/491
Domestic Patent References:
| JP2015179610A |
Foreign References:
| CN106654119A | ||||
| CN104157819A |
Attorney, Agent or Firm:
Nijiiro Patent Office, a patent business corporation