Invention Grant
- Patent Title: Electric power charge and discharge system
- Patent Title (中): 电力充放电系统
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Application No.: US12893497Application Date: 2010-09-29
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Publication No.: US07898215B2Publication Date: 2011-03-01
- Inventor: Shuhei Nagatsuka , Akihiro Kimura
- Applicant: Shuhei Nagatsuka , Akihiro Kimura
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office, P.C.
- Agent Eric J. Robinson
- Priority: JP2006-296964 20061031
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M10/46
Abstract:
An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged.
Public/Granted literature
- US20110012557A1 ELECTRIC POWER CHARGE AND DISCHARGE SYSTEM Public/Granted day:2011-01-20
Information query
