Title:
METHOD FOR MANUFACTURING LITHIUM-ION SECONDARY BATTERY SEPARATOR
Document Type and Number:
Japanese Patent JP2020161279
Kind Code:
A
Abstract:
To provide a method for manufacturing a lithium-ion secondary battery separator, capable of manufacturing a separator having few pinholes and unpainted defects.SOLUTION: A method for manufacturing a lithium-ion secondary battery separator is characterized in that, in a method for manufacturing a lithium-ion battery separator that is obtained by forming a coated layer containing inorganic particles on a non-woven fabric base material, a coating liquid A having a static surface tension of 45 mN/m or more and a coating liquid B having a static surface tension of 20 mN/m or more and less than 45 mN/m are applied on a non-woven fabric base material, sequentially in the order.SELECTED DRAWING: None
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Inventors:
SATO TOMOHIRO
MASUDA TAKAO
MASUDA TAKAO
Application Number:
JP2019058092A
Publication Date:
October 01, 2020
Filing Date:
March 26, 2019
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
H01M2/16
Domestic Patent References:
| JP2014044857A | 2014-03-13 | |||
| JP2015103456A | 2015-06-04 | |||
| JP2017517834A | 2017-06-29 | |||
| JP2014222649A | 2014-11-27 | |||
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Foreign References:
| WO2018047742A1 | 2018-03-15 | |||
| WO2013176276A1 | 2013-11-28 | |||
| WO2012099149A1 | 2012-07-26 | |||
| WO2012115252A1 | 2012-08-30 | |||
| WO2010074202A1 | 2010-07-01 |