Title:
POROUS FILM, SECONDARY BATTERY SEPARATOR, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/105672
Kind Code:
A1
Abstract:
An objective of the present invention is to provide, at low cost, a porous film that has superior thermal dimensional stability and adhesiveness to electrodes, and that has superior battery properties. The present invention is a porous film in which a porous layer containing A particles and B particles is layered upon at least one side of a porous base material, wherein: the A particles are particles containing a polymer comprising at least one monomer unit selected from a monomer unit group a consisting of fluorine-containing (meth)acrylate monomer units and silicon-containing monomer units; and the B particles are inorganic particles.
Inventors:
KAI NOBUYASU (JP)
KAMON KEIICHI (JP)
TSUKUDA AKIMITSU (JP)
KAMON KEIICHI (JP)
TSUKUDA AKIMITSU (JP)
Application Number:
PCT/JP2019/045403
Publication Date:
May 28, 2020
Filing Date:
November 20, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B32B5/32; H01M50/443; H01M50/489
Domestic Patent References:
| WO2013058119A1 | 2013-04-25 | |||
| WO2017094252A1 | 2017-06-08 | |||
| WO2017094250A1 | 2017-06-08 | |||
| WO2015198534A1 | 2015-12-30 | |||
| WO2013133074A1 | 2013-09-12 | |||
| WO2018034094A1 | 2018-02-22 |
Foreign References:
| JP2016225297A | 2016-12-28 | |||
| JP6191597B2 | 2017-09-06 |
Other References:
See also references of EP 3885127A4
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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