Title:
蓄電デバイス用セパレータ、セパレータ用スラリー及び非水電解液二次電池
Document Type and Number:
Japanese Patent JP6444122
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide: a separator for a power storage device, which is superior in heat resistance, and enables the enhancement of initial charge and discharge characteristics of a battery; a nonaqueous electrolyte secondary battery including such a separator; and a slurry for manufacturing such a separator.SOLUTION: A separator for a power storage device comprises: a porous base film including a polyolefin resin as a primary component; and a porous layer on at least one face of the porous base film, which includes an inorganic filler and a resin binder. In primary particle diameter distribution measurement based on the volume of the inorganic filler, the content of particles of 0.2 μm or smaller in primary particle diameter is less than 10 mass% to the mass of the inorganic filler. The inorganic filler has a median diameter of 0.5-0.8 μm.SELECTED DRAWING: Figure 1
Inventors:
Uchida Yuki
Ken Katagiri
Hiroshi Hatayama
Ken Katagiri
Hiroshi Hatayama
Application Number:
JP2014202439A
Publication Date:
December 26, 2018
Filing Date:
September 30, 2014
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
H01M2/16; H01G11/52; H01G11/84; H01M10/0566
Domestic Patent References:
| JP2008149986A1 | ||||
| JP2014149936A |
Foreign References:
| WO2014148577A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Kazuhiro Nakamura
Toko Saito
Shunsuke Mima
Takashi Ishida
Tetsuji Koga
Kazuhiro Nakamura
Toko Saito
Shunsuke Mima