Title: Battery pack
Application Number: 200610163662 Application Date: 2006.12.01
Publication Number: 1976095 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01M2/20;H01M6/42;H01M10/00
Applicant(s) Name: Matsushita Battery Ind Co., Ltd. Address:
Inventor(s) Name: Nagatani Masatomo;Hirakawa Yasushi
Attorney & Agent: chenjian quan
Abstract:
    The present invention provides a battery pack of a plurality of prismatic batteries having one electrode terminal protruding from the sealing plate with a design that reduces the risk of weld failure and ensures reliable connection of the batteries despite possible variation in height of the electrode terminals. In the said battery pack, an electrode terminal 3 is protrudedly provided on an end surface of height direction of a flat battery case 1, and another end surface or side surface is flat prismatic batteries Ba2 of another electrode terminal 2, a plurality of which are overlapped on the thickness direction. A flat welding part 7 of the connector 4 welds on the other electrode terminal 2 of one prismatic batterie Ba2 of the two adjacent prismatic batteries Ba2, and in the cylindrical welding part 12 of an attachment part 11 extending from the said flat welding part to array direction of each prismatic batterie Ba2 through an upright part 8, an electrode terminal 3 of another prismatic batterie Ba2 is pluged and connected in the welding state to weld with each other.
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