Prismatic sealed battery module
AssigneesMatsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsTakashi Asahina, Shinji Hamada, Shinsuke Fukuda, Toyohiko Eto
Life of this patent
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Abstract
A prismatic sealed battery module includes: a prismatic battery case; an electrode plate group constituted by alternately layering positive and negative electrode plates with a separator arranged therebetween; and an electrolyte. The positive or negative electrode plates protruding from each end face of the electrode plate group are bonded to a collector member. A metal connector is fixed to the central part of the collector member facing the inner surface of the side end wall of the battery case. The collector member is connected, at the metal connector, to an external terminal using an externally connecting bolt.
Claims14
A prismatic sealed battery module comprising:
- electrode plate groups each constituted by alternately layering positive and negative electrode plates with a separator interposed therebetween;
- an electrolyte;
- a prismatic battery case for accommodating the electrode plate groups and the electrolyte;
- the positive or negative electrode plates protruding from an end face of at least one of the electrode plate groups being bonded to a first collector member,
- an external terminal connected to a central part of the first collector member facing an inner surface of a side end wall of the battery case,
- said electrode plate groups having side edges;
- a second collector member directly contacting and connecting the side edges of adjacent ones of the electrode plate groups, said second collector member being located between said side edges to serve as both a collector member and a partition wall between said adjacent electrode plate groups and provide a current path limited to a space between said side edges of said adjacent electrode plate groups.
A prismatic sealed battery module comprising:
- at least one electrode plate group constituted by alternately layering positive and negative electrode plates with a separator interposed therebetween;
- an electrolyte;
- and
- a prismatic battery case for accommodating the at least one electrode plate group and the electrolyte, wherein
- the positive or negative electrode plates protruding from both end faces of the at least one electrode plate group are bonded to a collector member,
- an external terminal is connected to a central part of the collector member facing an inner surface of a side end wall of the prismatic battery case,
- a metal connector is fixed to the central part of the collector member facing the inner surface of the side end wall,
- a sealing material is arranged at an outer periphery of a contact surface between the metal connector and the inner surface of the side end wall, and
- an externally connecting bolt is fastened through the side end wall to the metal connector.
Dependencies are inferred from the claim text.