Title:
SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/286877
Kind Code:
A1
Abstract:
This separator for a non-aqueous secondary battery comprises: a porous substrate; and an adhesive porous layer including a polyvinylidene fluoride resin and an inorganic filler, wherein the average primary particle diameter of all the inorganic filler contained in the adhesive porous layer is equal to or more than 0.01 μm and less than 0.50 μm and when the entire polyvinylidene fluoride resin contained in the adhesive porous layer is used as a sample and measured using differential scanning calorimetry, at least two endothermic peaks and/or at least two exothermic peaks are observed.
Inventors:
KURATANI RIKA (JP)
MIURA MAI (JP)
NISHIKAWA SATOSHI (JP)
MIURA MAI (JP)
NISHIKAWA SATOSHI (JP)
Application Number:
PCT/JP2022/027951
Publication Date:
January 19, 2023
Filing Date:
July 15, 2022
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
H01M50/451; B32B5/32; B32B27/20; B32B27/30; C08F14/22; C08K3/10; C08K3/22; C08K3/30; C08L27/16; H01M50/426; H01M50/434; H01M50/443; H01M50/446; H01M50/489
Domestic Patent References:
| WO2020189112A1 | 2020-09-24 | |||
| WO2013058367A1 | 2013-04-25 | |||
| WO2013058368A1 | 2013-04-25 | |||
| WO2013058369A1 | 2013-04-25 | |||
| WO2013058370A1 | 2013-04-25 |
Foreign References:
| JP6487130B1 | 2019-03-20 | |||
| JP6487130B1 | 2019-03-20 | |||
| JP2021118146A | 2021-08-10 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
Download PDF:
Previous Patent: SEPARATOR FOR NONAQUEOUS SECONDARY BATTERY AND NONAQUEOUS SECONDARY BATTERY
Next Patent: PANEL FRAME STRUCTURE
Next Patent: PANEL FRAME STRUCTURE