US 6,569,561 B1Granted

Battery pack

AssigneesMatsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha

InventorsTadao Kimura, Shinji Hamada, Yoshiaki Ogata, Tomokazu Yamauchi, Toshiyuki Sekimori

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Abstract

A battery module is constructed of an integral battery case which is constituted by forming a plurality of prismatic cell cases into a unitized body, wherein positive electrode plates and negative electrode plates laminated alternately upon one another with intervening separators are respectively accommodated in each of the cell cases, thereby constituting a plurality of cells, these cells being electrically connected in series. A plurality of such battery modules are arranged in a direction in which the electrode plates within each cell are laminated in a condition with coolant passages formed between the battery modules, and bound tightly together with end plates arranged at both ends in the direction of adjacent arrangement of the battery modules.

Claims4

Dependent claims

A battery pack comprising:

a plurality of battery modules, each of said plurality of battery modules being constructed of an integral battery case which is constituted by forming a plurality of prismatic cell cases into a unitized body, wherein positive electrode plates and negative electrode plates laminated alternately upon one another with intervening separators are respectively accommodated in each of said cell cases, thereby constituting a plurality of cells, said plurality of cells being electrically connected in series,
said plurality of battery modules being arranged in a direction in which the electrode plates are laminated within each of said cell cases of the battery module, in a condition with coolant passages formed between the battery modules;
end plates arranged at both ends in the direction of adjacent arrangement of the battery modules;
and
means for binding said plurality of battery modules and said end plates together as one piece.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/684,250Filed 6 Oct 2000
Priority: JP 11-2888008 Oct 1999
Granted: 27 May 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H01M 10/0413
Construction or manufacture in general: large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
H01M 10/281
Construction or manufacture: large cells or batteries with stacks of plate-like electrodes
H01M 10/613
Types of temperature control: cooling or keeping cold
H01M 10/647
Characterised by the shape of the cells: prismatic or flat cells, e.g. pouch cells