Title:
SEPARATOR AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2022145551
Kind Code:
A
Abstract:
To provide a nonaqueous electrolyte secondary battery separator enhanced in the effect of preventing short circuit by controlling the shape of dendrite.SOLUTION: A nonaqueous electrolyte secondary battery separator according to an embodiment of the present invention is 5 or larger in the kurtosis of a group of data of heights from a reference plane when unevenness data of at least one surface of the separator is analyzed; the standard deviation of the data group of heights from the reference plane is 12 or below.SELECTED DRAWING: None
Inventors:
ARISE ICHIRO
MORIZANE SAKI
MORIZANE SAKI
Application Number:
JP2022027138A
Publication Date:
October 04, 2022
Filing Date:
February 24, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
H01M50/463; H01M10/0566; H01M50/417; H01M50/423; H01M50/449; H01M50/489
Attorney, Agent or Firm:
Kazuya Hasegawa
Kentaro Tsuruta
Kentaro Tsuruta