Patent ID: 6822420
Filing Date: 2004-11-23
Classification: H01M,Y02E

Abstract:
A battery power source device comprising a plurality of rechargeable batteries, said rechargeable battery storing a power generating element in an outer case made of a laminated sheet and being formed in a flat, approximately prismatic shape, positive and negative electrode leads and being extended in the same direction from a same lead extended side of the outer case thermally sealed, said plurality of rechargeable batteries being arranged in parallel such that their lead extended edges are in the same direction, said power source device comprising a circuit board including a conductive pattern and a battery protection device formed thereon, said circuit board being provided on the lead extended edge of each said rechargeable battery, the positive and negative electrode leads of each said rechargeable battery being joined to a prescribed conductive pattern formed in the extending direction of each lead on the same surface of the circuit board, whereby a connection circuit formed by the conductive pattern on the circuit board connects each said rechargeable battery to an input/output terminal through the battery protection device.