Battery pack including ultrasonic welding surfaces

Details Battery pack including ultrasonic welding surfaces Battery pack including ultrasonic welding surfaces

2008-04-09

2009-12-29

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Support or holder per se

Reexamination Certificate

active

07638234

ABSTRACT:
Disclosed herein is a battery pack including: a plurality of cylindrical battery cells arranged in a plurality of rows and a plurality of layers; a lower case for supporting the battery cells; and an upper cover welded to the lower case in the state of covering the battery cells supported by the lower case; wherein the end parts of the upper cover and the lower case are opposed to and abutted on each other, and are welded to each other by ultrasonic welding.

REFERENCES:
patent: 6340877 (2002-01-01), Mita et al.
patent: 7141330 (2006-11-01), Aoyama
patent: 2007/0103112 (2007-05-01), Casalena et al.
patent: 2007/0193880 (2007-08-01), Schick et al.
patent: 2003-257388 (2003-09-01), None

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