Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/176629
Kind Code:
A1
Abstract:
An embodiment of the present invention provides a non-aqueous electrolyte secondary battery wherein a separator has a porous base material and a heat-resistant layer including a filler and a binding agent. The heat-resistant layer includes a first heat-resistant layer formed on a first surface of the base material facing a positive electrode and a second heat-resistant layer formed on a second surface of the base material facing a negative electrode. The first heat-resistant material is formed as a sheet on the first surface of the base material and the second heat-resistant layer is formed as dots on the second surface of the base material. The average value of the intervals between the plurality of dots constituting the second heat-resistant layer is 30-100 μm.
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Inventors:
KITTA KAZUKI
KASAMATSU SHINJI
SAKITANI NOBUHIRO
KASAMATSU SHINJI
SAKITANI NOBUHIRO
Application Number:
PCT/JP2022/004223
Publication Date:
August 25, 2022
Filing Date:
February 03, 2022
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M50/463; H01M50/417; H01M50/434; H01M50/443; H01M50/446; H01M50/451; H01M50/457; H01M50/489
Domestic Patent References:
| WO2020004205A1 | 2020-01-02 |
Foreign References:
| JP2013137984A | 2013-07-11 | |||
| JP2019503577A | 2019-02-07 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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