Invention Grant
- Patent Title: Method for predicting battery charge limit, and method and apparatus for rapidly charging battery using same
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Application No.: US15574356Application Date: 2016-08-04
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Publication No.: US10605870B2Publication Date: 2020-03-31
- Inventor: Hyo-Mi Kim , Hyeok-Moo Lee , Song-Taek Oh , Sol-Nip Lee
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2015-0116247 20150818
- International Application: PCT/KR2016/008614 WO 20160804
- International Announcement: WO2017/030309 WO 20170223
- Main IPC: G01R31/388
- IPC: G01R31/388 ; H01M10/44 ; G01R31/36 ; H01M10/0525 ; H02J7/00 ; H01M10/42 ; H01M10/48 ; H02J7/04

Abstract:
Provided are a method of predicting a battery charge limit not to cause lithium (Li)-plating, and a battery charging method and apparatus capable of quickly charging a battery based on the battery charge limit. A battery charge limit prediction method according to the present disclosure includes (a) fabricating a three-electrode cell including a unit cell and a reference electrode, (b) measuring a negative electrode potential (CCV) based on a state of charge (SOC) while charging the three-electrode cell, and (c) determining a point at which the negative electrode potential is not dropped but starts to be constant, as a lithium (Li)-plating occurrence point, and setting the Li-plating occurrence point as a charge limit.
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