Title:
蓄電デバイス用セパレータ、蓄電デバイス、及びリチウムイオン二次電池
Document Type and Number:
Japanese Patent JP6574602
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide: a separator for an electricity storage device, which is high in adhesion between inorganic particles and a polyolefin microporous film and further has excellent adhesion with an electrode; and an electricity storage device and a lithium ion secondary battery which include the separator.SOLUTION: A separator for an electricity storage device includes a base material and a porous layer arranged on at least one surface of the base material. The porous layer contains inorganic particles and a copolymer binder. The swelling degree of the copolymer binder with respect to a mixed solvent is 1.5 times or less, the mixed solvent containing 2 pts.mass of ethylene carbonate and 3 pts.mass of diethyl carbonate.SELECTED DRAWING: None
Inventors:
Ken Katagiri
Hiroshi Miyazawa
Masatoshi Ikemi
Koichiro Higashi
Hiroshi Miyazawa
Masatoshi Ikemi
Koichiro Higashi
Application Number:
JP2015094368A
Publication Date:
September 11, 2019
Filing Date:
May 01, 2015
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
H01M2/16; H01G11/52
Domestic Patent References:
| JP2012074367A | ||||
| JP2012221889A |
Foreign References:
| WO2016013223A1 | ||||
| WO2014157715A1 | ||||
| WO2010134501A1 | ||||
| WO2014057993A1 | ||||
| US20070009803 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito