Title:
非水電解液二次電池用セパレータ
Document Type and Number:
Japanese Patent JP6609014
Kind Code:
B2
Abstract:
With a nonaqueous electrolyte secondary battery separator having a radical concentration of 5000×1012 spins/mg to 90000×1012 spins/mg, wherein the concentration is calculated from a peak at a g-value of not less than 2.010 in an electron spin resonance spectrum obtained through electron spin resonance analysis using a microwave having a frequency of 9.4 GHz, it is possible to provide a nonaqueous electrolyte secondary battery having a high battery resistance decreasing rate before and after battery formation.
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Inventors:
Kashiwazaki Eiko
Chikara Murakami
Chikara Murakami
Application Number:
JP2018172604A
Publication Date:
November 20, 2019
Filing Date:
September 14, 2018
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
H01M10/0566; H01M50/417; H01M50/406; H01M50/489; H01M50/491
Domestic Patent References:
| JP10067870A | ||||
| JP2002151084A | ||||
| JP2003003006A | ||||
| JP2017103041A | ||||
| JP2008226605A | ||||
| JP2009123424A |
Foreign References:
| WO2016072420A1 |
Attorney, Agent or Firm:
Kazuya Hasegawa
Kentaro Tsuruta
Kentaro Tsuruta