Title:
SOLID-ELECTROLYTE MATERIAL, NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING SOLID-ELECTROLYTE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/070450
Kind Code:
A1
Abstract:
The solid-electrolyte material of the present disclosure includes a polymer having a main chain having, bonded thereto, an acidic functional group having an alkali metal ion, the polymer having a crosslinked structure containing an electron-donating polar group. The nonaqueous-electrolyte secondary battery of the present disclosure comprises a positive electrode including a positive-electrode active material, a negative electrode including a negative-electrode active material, a separator, and a nonaqueous electrolyte and satisfies at least one requirement selected from the group consisting of (A) to (D). (A) The nonaqueous-electrolyte secondary battery further includes a membrane including this solid-electrolyte material, the membrane having been disposed on the separator-side surface of at least one electrode selected from the group consisting of the positive electrode and the negative electrode. (B) The nonaqueous-electrolyte secondary battery further includes a membrane including this solid-electrolyte material, the membrane having been disposed on the surfaces of particles of at least one active material selected from the group consisting of the positive-electrode active material and the negative-electrode active material. (C) The nonaqueous-electrolyte secondary battery further includes a membrane including this solid-electrolyte material, the membrane having been disposed on at least some of the surfaces of the separator. (D) The separator includes this solid-electrolyte material.
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Inventors:
HARA KOHEI
Application Number:
PCT/JP2023/031504
Publication Date:
April 04, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/0565; C08L101/02; H01B1/06; H01B13/00; H01M4/13; H01M4/131; H01M4/133; H01M4/134; H01M4/136; H01M4/38; H01M4/48; H01M4/485; H01M4/525; H01M4/58; H01M4/587; H01M4/62; H01M10/052; H01M50/411; H01M50/449
Domestic Patent References:
| WO2016063975A1 | 2016-04-28 | |||
| WO2023090362A1 | 2023-05-25 |
Foreign References:
| JP2021508159A | 2021-02-25 | |||
| CN108341933A | 2018-07-31 |
Other References:
MARZANTOWICZ M.; POżYCZKA K.; BRZOZOWSKI M.; DYGAS J.R.; KROK F.; FLORJAńCZYK Z.; LAP: "From polymer to polyelectrolyte: Studies of star-branched poly(ethylene oxide) with lithium functional groups", ELECTROCHIMICA ACTA, ELSEVIER, AMSTERDAM, NL, vol. 115, 19 October 2013 (2013-10-19), AMSTERDAM, NL , pages 612 - 620, XP028809789, ISSN: 0013-4686, DOI: 10.1016/j.electacta.2013.09.167
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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