The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2022
Filed:
Feb. 28, 2020
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Kazuki Ise, Kawasaki, JP;
Yasunobu Yamashita, Tokyo, JP;
Kazuomi Yoshima, Yokohama, JP;
Shinsuke Matsuno, Tokyo, JP;
Norio Takami, Yokohama, JP;
Hiroki Inagaki, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
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 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 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 10 m/g or more and 350 m/g or less. A mol concentration ratio Zn/Li between zinc and lithium in the aqueous electrolyte is 1.0×10or more and 0.3 or less.