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. 20, 2022
Filed:
May. 20, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yuto Horiuchi, Osaka, JP;
Taisuke Yamamoto, Nara, JP;
Abstract
A method for charging a nonaqueous electrolyte secondary battery includes a first charging step of charging a first capacity Qat a first constant current value I, the first capacity Qincluding a capacity range in which dQ/dQ is more than or equal to a predetermined threshold value, a second charging step of charging a second capacity at a second constant current value more than the first constant current value, a detection step of acquiring at least one of dV/dQ and dQ/dQ, and a changing step of changing at least one of the timing of switching between the first charging step and the second charging step and the first constant current value Ion the basis of a change in time of dV/dQ or dQ/dQ.