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. 05, 2017
Filed:
Oct. 28, 2013
Guang Zhou Fullriver Battery New Technology Co., Ltd., Guangzhou, CN;
Guangzhou Fullriver Battery New Tochnology Co., Ltd., Guangdong, CN;
Abstract
A method for grouping lithium secondary battery packs comprises the following steps: charging and discharging a battery for 1-3 cycles, recording the last discharge capacity C, setting a capacity lower limit, and determining the battery with the Cthereof not less than the capacity lower limit to be an eligible battery; discharging the battery to a discharge cut-off voltage Vso the battery is discharged to a power empty state; charging the empty battery to a capacity C; storing the battery for time tin an environment with a temperature ranging between 20-50° C., recording the battery voltage V, storing the battery again for time tin the environment with the temperature ranging between 20-50° C., recording the battery voltage V, calculating a voltage difference ΔV=V−Vand setting the range of ΔV; and grouping eligible batteries in a previous step according to a certain capacity grouping standard.