Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2005-08-02
2005-08-02
Yuan, Dah-Wei (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S149000, C429S153000, C429S167000
Reexamination Certificate
active
06924060
ABSTRACT:
In a prismatic sealed battery module which includes a plurality of electrode plate groups, collectors joined to leads on both sides of the electrode plate group, and a prismatic battery case for storing the plurality of electrode plate groups, a connected-electrode-plate-group body is constituted by connecting the plurality of electrode groups with collectors interposed between them. A sheet covering both side surfaces and a bottom surface of the peripheral surfaces of the connected-electrode-plate-group body is provided. After gaps between the sheet and outer edges of the collectors are sealed, the connected-electrode-plate-group body is placed in the prismatic battery case. Thereby, the current-carrying paths between the electrode plate groups are short and straight, resulting in reduced internal resistance. A battery case for the individual cell is constituted such that gaps between outer edges of the collectors which are not sealed to the sheet, and the inner surfaces of the prismatic battery case are sealed.
REFERENCES:
patent: 6304057 (2001-10-01), Hamada et al.
patent: 2001/0007728 (2001-07-01), Ogata et al.
patent: 2003/0027040 (2003-02-01), Asahina et al.
patent: 2001-093503 (2001-04-01), None
Asahina Takashi
Eto Toyohiko
Hamada Shinji
Matsushita Electric - Industrial Co., Ltd.
Toyota Jidosha & Kabushiki Kaisha
Yuan Dah-Wei
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