Title:
NON-AQUEOUS ELECTROCHEMICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/163321
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a non-aqueous electrochemical element having reduced direct current resistance at low temperatures and excellent high-temperature storage characteristics. This electrochemical element comprises a positive electrode, a negative electrode, a separator, and an electrolytic solution. The positive electrode is provided with a positive electrode mixture layer containing a positive electrode active material, a conductive material, and a binder for the positive electrode. The binder for the positive electrode contains a polymer A including a nitrile group-containing monomer unit and an alkylene structure unit. The electrolytic solution contains an ester solvent represented by formula (I), and a non-halogenated carbonate solvent. Formula (I): R1–C(=O)–O–R2
In formula (I), R1 and R2 represent linear alkyl groups that are respectively independent and have 2 or more carbon atoms.
Inventors:
TAKAHASHI NAOKI (JP)
Application Number:
PCT/JP2022/000281
Publication Date:
August 04, 2022
Filing Date:
January 06, 2022
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
H01M10/052; H01G11/38; H01G11/60; H01M4/13; H01M4/62; H01M10/0569
Foreign References:
| JP2017174764A | 2017-09-28 | |||
| JP2012204303A | 2012-10-22 | |||
| JP2017530500A | 2017-10-12 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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