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:
Sep. 24, 2013
Filed:
Jan. 11, 2011
Takefumi Okumura, Hitachinaka, JP;
Ryo Inoue, Hitachinaka, JP;
Toshio Abe, Tokai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
This invention provides a lithium-ion battery in which a coating film forming agent degradation reaction is prevented. A lithium-ion batteryin which electrodesandand an electrolyte are accommodated in a battery container, and which has a means of for adding a coating film forming agentfor adding a coating film forming agentthat forms a coating film on the surface of each of electrodesandto an electrolyte in a battery containeris provided. With the use of such means of adding a coating film forming agent, a reaction of electrochemical degradation of a coating film forming agentis prevented, allowing long-term preservation. Also, with the addition of a coating film forming agentto an electrolyte, a deteriorated coating film on the surface of each of electrodesandis repaired such that a lithium-ion batterycan be regenerated, resulting in extension of battery life.