Invention Grant
- Patent Title: Lead storage battery charging control method, charging control circuit, power source device, and lead storage battery
- Patent Title (中): 铅蓄电池充电控制方法，充电控制电路，电源装置和铅蓄电池
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Application No.: US13148221Application Date: 2010-05-27
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Publication No.: US08148938B2Publication Date: 2012-04-03
- Inventor: Tomoya Kikuchi , Harumi Murochi , Yasuyuki Yoshihara , Kazuyuki Shimada
- Applicant: Tomoya Kikuchi , Harumi Murochi , Yasuyuki Yoshihara , Kazuyuki Shimada
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2009-128465 20090528
- International Application: PCT/JP2010/003576 WO 20100527
- International Announcement: WO2010/137334 WO 20101202
- Main IPC: H01M10/46
- IPC: H01M10/46
Abstract:
Disclosed is a charging control method including: a full charging step of charging a lead storage battery until the battery is fully charged; a refresh charging step of performing refresh charging of charging the lead storage battery with a predetermined refresh charging quantity of electricity after the lead storage battery has been fully charged; and a refresh charging quantity setting step of setting the refresh charging quantity of electricity in the refresh charging step for the lead storage battery which has been fully charged at a present time, depending on a temperature of the lead storage battery throughout a deficient charging period, the deficient charging period being a period from a time when the lead storage battery has been fully charged at a previous time to a time when the lead storage battery has been fully charged at the present time in the full charging step.
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