Invention Grant
- Patent Title: Extended duration power supply
- Patent Title (中): 延长电源
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Application No.: US13255678Application Date: 2009-03-10
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Publication No.: US09214681B2Publication Date: 2015-12-15
- Inventor: Frank de Wit , Florin Tatar
- Applicant: Frank de Wit , Florin Tatar
- Applicant Address: SE Gothenburg
- Assignee: AKTIEBOLAGET SKF
- Current Assignee: AKTIEBOLAGET SKF
- Current Assignee Address: SE Gothenburg
- Agency: SKF USA Inc. Patent Dept.
- Agent Bryan Peckjian
- International Application: PCT/EP2009/001775 WO 20090310
- International Announcement: WO2010/102646 WO 20100916
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M6/14 ; H01M4/38 ; H01M6/50 ; H01M16/00

Abstract:
The present invention concerns a power supply (10) comprising a primary cell (11) adapted to provide a primary cell current. The primary cell (11) comprises an anode, a cathode current collector and an electrolyte, whereby a passivation layer is formed on a surface of the anode as a result of a chemical reaction between the anode and the electrolyte. To ensure that the passivation layer remains essentially intact for the lifetime of the primary cell, the power supply (10) further comprises a current limiter (12) that is configured to prevent the magnitude of the primary cell current exceeding a value that would damage the passivation layer.
Public/Granted literature
- US20110316484A1 POWER SUPPLY Public/Granted day:2011-12-29
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