Apparatus for interconnecting battery cells in a battery...

Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – For battery pack

Reexamination Certificate

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Details

C429S099000

Reexamination Certificate

active

06972544

ABSTRACT:
A battery pack for a cordless power has a plurality of battery cells disposed in a housing. In an embodiment of the invention, battery cells are interconnected with a laminated plate structure having non-conductive layers interspersed with conductive layers, at least one of the conductive layers connected to the battery cells to interconnect them. In an embodiment of the invention, battery cells in a battery pack are interconnected with a flexible printed circuit board having conductive traces thereon that are attached to the battery cells to interconnect them. In an embodiment of the invention, a cordless power tool has one or the other of the foregoing battery packs. In an embodiment of the invention, the battery cells are Lithium Ion battery cells.

REFERENCES:
patent: 5977746 (1999-11-01), Hershberger et al.
patent: 6399238 (2002-06-01), Oweis et al.
patent: 6455190 (2002-09-01), Inoue et al.

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