US 2006/0049799 A1Published application

Battery pack

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsShinji Hamada, Toyohiko Eto, Yoshiaki Ogata

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Abstract

A battery pack 100 has plural battery modules 110 each of which constituted with plural unit cells 120 arranged in a row. Furthermore, a spacer 130 intervenes between adjoining battery modules 110 to constitute a cooling passage 160 which makes cooling medium flow and cools down the unit cells 120. The spacer 130 is designed to flow the cooling medium in a row direction of unit cell cases 121 integrated in a battery module 110. The spacer 130 is structured such that touch area of the cooling medium and the unit cell cases 121 becomes lager as going from inlet side to outlet side of the cooling passage 160 with respect to each of the plural battery modules 110.

Claims8

Dependent claims

A battery pack comprising:

plural battery modules each of which constituted with plural rectangular unit cells arranged in a row, the battery modules being arranged such that unit cell cases of the unit cells integrated in a battery module face to unit cell cases of the unit cells integrated in an adjoining other battery module taking a space;
and
a spacer intervening between adjoining battery modules, the spacer constituting a cooling passage which makes cooling medium flowing between the adjoining battery modules touch each of the unit cell cases for the adjoining battery modules,
wherein the spacer is structured such that:
the cooling medium flows in a row direction of the unit cell cases belonging to the battery module, and
touch area of the cooling medium and the unit cell cases becomes lager as going from inlet side to outlet side of the cooling passage with respect to each of the plural battery modules.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/218,622Filed 6 Sep 2005
Priority: JP 2004-2583056 Sep 2004
Published: 9 Mar 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H01M 10/4207
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: for several batteries or cells simultaneously or…
H01M 10/613
Types of temperature control: cooling or keeping cold
H01M 10/617
Types of temperature control: for achieving uniformity or desired distribution of temperature
H01M 10/625
Specially adapted for specific applications: vehicles

Family

US 7,504,799 B2Related patent
US 2006/0049799 A1This patent

From the US filing history. Foreign family members aren’t listed.

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