Invention Grant
US09054396B2 Method for charging a lithium ion battery by increasing a charge limit voltage to compensate for internal battery voltage drop
有权
通过增加充电限制电压来对锂离子电池充电以补偿内部电池电压降的方法
- Patent Title: Method for charging a lithium ion battery by increasing a charge limit voltage to compensate for internal battery voltage drop
- Patent Title (中): 通过增加充电限制电压来对锂离子电池充电以补偿内部电池电压降的方法
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Application No.: US13059918Application Date: 2009-07-02
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Publication No.: US09054396B2Publication Date: 2015-06-09
- Inventor: Dingbo Cheng , Shengcheng Tang , Shihua Zeng
- Applicant: Dingbo Cheng , Shengcheng Tang , Shihua Zeng
- Applicant Address: CN Guangdong
- Assignee: GUANGZHOU FULLRIVER BATTERY NEW TECHNOLOGY CO., LTD
- Current Assignee: GUANGZHOU FULLRIVER BATTERY NEW TECHNOLOGY CO., LTD
- Current Assignee Address: CN Guangdong
- Agency: Locke Lord LLP
- Agent Howard M. Gitten
- Priority: CN200810198973 20080928
- International Application: PCT/CN2009/000747 WO 20090702
- International Announcement: WO2010/034179 WO 20100401
- Main IPC: H02J7/04
- IPC: H02J7/04 ; H01M10/44 ; H02J7/00

Abstract:
The present invention provides a quick charge method belonging to the field of the battery and particularly relates to a quick charge method for lithium ion battery and polymer lithium ion battery. During a battery is being charged, the battery stops charging when the battery is charged to a charge limit voltage, and the charge limit voltage between two poles of the battery is set to be U=2U0−Us, and Us is a stabilized voltage which the voltage of the battery falls back to after the voltage of the battery is charged to U0 at a constant current, U0 is a standard charge cutoff voltage used by a low rate constant current-constant voltage charging mode which is normally accepted by the industries, and the stabilized voltage Us is selected as follows: timing begins when the battery stops charging at the constant current, and from a certain time segment, when the drop of an open-circuit voltage of the battery is less than a certain value within the certain time segment, which means that the voltage of the battery is stable, and a voltage corresponding to the first time point of this time segment is selected as the stabilized voltage Us of the battery.
Public/Granted literature
- US20110156660A1 QUICK CHARGE METHOD Public/Granted day:2011-06-30
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