Invention Grant
US08193777B2 Non-aqueous electrolyte secondary battery charging method, electronic device, battery pack, and charging device
有权
非水电解质二次电池充电方法，电子装置，电池组和充电装置
- Patent Title: Non-aqueous electrolyte secondary battery charging method, electronic device, battery pack, and charging device
- Patent Title (中): 非水电解质二次电池充电方法，电子装置，电池组和充电装置
-
Application No.: US12519287Application Date: 2007-12-11
-
Publication No.: US08193777B2Publication Date: 2012-06-05
- Inventor: Takuya Nakashima
- Applicant: Takuya Nakashima
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-349461 20061226
- International Application: PCT/JP2007/073865 WO 20071211
- International Announcement: WO2008/078552 WO 20080703
- Main IPC: H02J7/04
- IPC: H02J7/04 ; H02J7/16
Abstract:
The present invention aims to quickly charge a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode. A method according to the present invention for charging a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode is provided with a step of performing pulse charge on the secondary battery, a step of detecting a change amount of a cell voltage associated with a change in the concentration polarization of the non-aqueous electrolyte as a polarization voltage, and a step of terminating the pulse charge when the polarization voltage increases to or above a predetermined threshold value. According to the present invention, it is possible to quickly charge the non-aqueous electrolyte secondary battery including the heat-resistant layer between the negative electrode and the positive electrode at such a borderline level as not to cause overcharge.
Public/Granted literature
Information query
