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. 23, 2019
Filed:
Oct. 23, 2015
National University Corporation Yokohama National University, Yokohama-shi, Kanagawa, JP;
Masayoshi Watanabe, Yokohama, JP;
Kaoru Dokko, Yokohama, JP;
Zhe Li, Yokohama, JP;
Shiguo Zhang, Yokohama, JP;
NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, Kanagawa, JP;
Abstract
A production method for a cathode material of a lithium sulfur battery includes, in sequence: a step of preparing a first dispersed solution in which a carbon particle is dispersed in a lithium sulfate solution; a step of adding a solvent in the first dispersed solution, the solvent being a solvent in which lithium sulfate is insoluble; a step of separating a precursor particle from the first dispersed solution in which the solvent is added; and a step of changing the precursor particle into a cathode active material particle by heating the precursor particle under an inert atmosphere.