Patent ID: 7163765
Filing Date: 2007-01-16
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A bipolar battery, comprising: a bipolar electrode in which a positive electrode is provided on one surface of a collector, and a negative electrode is provided on the other surface of the collector; a gel electrolyte sandwiched between the positive electrode and the negative electrode; and a sealing layer which is provided between the collectors and surrounds a periphery of a single cell including the positive electrode, the negative electrode, and the gel electrolyte, wherein the sealing layer is made of a first resin provided to be positioned on sides of the collectors and a non-conductive second resin which is sandwiched by the first resin and has a higher melting point than that of the first resin, and the collectors and the sealing layer are thermally welded at a temperature between the melting points of the first resin and the second resin.