Electric battery assembly and method of manufacture

Details Electric battery assembly and method of manufacture Electric battery assembly and method of manufacture

2008-06-03

2008-06-03

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Venting structure

C429S072000, C429S081000, C429S082000, C429S163000, C429S175000, C429S181000, C429S185000

Reexamination Certificate

active

07381494

ABSTRACT:
An energy storage device, such as an electrical storage battery, having a unique terminal structure, sealing arrangement and an S-shaped mandrel for the electrode assembly. The battery generally includes a case in which an electrode assembly is dispose, and a cover provided with a fill hole and fill plug, and a terminal structure that forms a battery terminal. The terminal hole and the fill hole have counter bore structure to provide tighter sealing. A nickel layer is provided on the aluminum fill plug to facilitate electrical contact with the external circuit. A mandrel is provided for the rolled electrode assembly, and is electrically coupled to the terminal structure via a push-in tab inserted into a space in the S-shape of the mandrel.

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