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Title:
LITHIUM-ION RECHARGEABLE BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/151501
Kind Code:
A1
Abstract:
This lithium-ion rechargeable battery comprises: a positive electrode containing a positive electrode active material, an electrolyte layer and a negative electrode containing a negative electrode active material. The electrolyte layer contains: at least one of an ionic liquid and a glyme represented by general formula (1); and a lithium salt. The negative electrode active material has an operating potential more than 1V greater than the metal lithium potential, and the capacity of the negative electrode is greater than that of the positive electrode. Formula (1): R1O—(CH2CH2O)m—R2 [In formula (1), R1 and R2 each independently represent a C1-4 alkyl group, and m represents an integer from 1-6.]

Inventors:
IIJIMA Atsushi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
OKUMURA Takefumi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
KAWAJI Jun (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
TANAKA Akihide (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
UNEMOTO Atsushi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
UEDA Suguru (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1018280, JP)
Application Number:
JP2019/003722
Publication Date:
August 08, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
HITACHI CHEMICAL COMPANY, LTD. (9-2 Marunouchi 1-chome, Chiyoda-ku Tokyo, 06, 〒1006606, JP)
International Classes:
H01M10/0525; H01M4/485; H01M10/0565; H01M10/0568; H01M10/0585
Domestic Patent References:
WO2015046468A12015-04-02
Foreign References:
JP2010277958A2010-12-09
JP2015088354A2015-05-07
JP2015201336A2015-11-12
JP2010170878A2010-08-05
JPH09293536A1997-11-11
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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