Title:
LITHIUM ZINC SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2020/059185
Kind Code:
A1
Abstract:
According to one embodiment, provided is a lithium zinc secondary battery including a positive electrode, a negative electrode, an aqueous electrolyte, and a separator between the positive electrode and the negative electrode. The negative electrode includes a zinc-including metal body and an oxide on at least a part of a surface of the zinc-including metal body. The aqueous electrolyte includes zinc and a lithium salt. Zinc is dissolved and deposited at the negative electrode. Lithium is inserted and extracted from the oxide in a potential range of -1.4 V (vs. SCE) or more and -1.0 V (vs. SCE) or less. A specific surface area of the oxide is from 10 m2/g or more and 350 m2/g or less. A mol concentration ratio Zn/Li between the zinc and the lithium in the aqueous electrolyte is 1.0 × 10-5 or more and 0.3 or less.
Inventors:
ISE KAZUKI (JP)
YAMASHITA YASUNOBU (JP)
YOSHIMA KAZUOMI (JP)
MATSUNO SHINSUKE (JP)
TAKAMI NORIO (JP)
INAGAKI HIROKI (JP)
YAMASHITA YASUNOBU (JP)
YOSHIMA KAZUOMI (JP)
MATSUNO SHINSUKE (JP)
TAKAMI NORIO (JP)
INAGAKI HIROKI (JP)
Application Number:
PCT/JP2019/010837
Publication Date:
March 26, 2020
Filing Date:
March 15, 2019
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H01M4/02; H01M4/04; H01M4/36; H01M4/42; H01M10/36; H01M4/505; H01M4/525; H01M10/42
Domestic Patent References:
| WO2017135323A1 | 2017-08-10 |
Foreign References:
| EP3220459A1 | 2017-09-20 | |||
| US20170222272A1 | 2017-08-03 | |||
| JP2018032646A | 2018-03-01 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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