Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 28, 2012
Patent Application Number
12307034
Date Filed
May 21, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
An electric storage device is provided with a battery cell, a collector foil having a first metal plate and a second metal plate laminated together, and a voltmeter for measuring potential difference between the first metal plate and the second metal plate. The first metal plate and the second metal plate are formed of mutually different metals. The collector foil is arranged to be in contact with the battery cell.
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