Battery Module

• US 20150221996A1
• Filed: 08/29/2013
• Published: 08/06/2015
• Est. Priority Date: 08/30/2012
• Status: Active Grant

• Current Assignee: SK On Company Limited (SK Innovation Company Limited)
• Original Assignee: SK Innovation Company Limited
• Inventors: Jin, Ye Jin
• Granted Patent: US 9,991,569 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/6555 arranged between the cells
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Provided is a battery module, wherein heat-radiating plates are coupled to a plurality of battery cells stacked and arranged in the battery module so as to be closely adhered to both surfaces of each of the battery cells, curved parts are formed on both sides of each of the heat-radiating plates, adjacent heat-radiating plates are formed to be spaced apart from each other by a predetermined distance, such that a volume change caused by expansion of the battery cell and a dimensional tolerance of the battery cell itself may be absorbed, and cooling performance may be improved.

Claims

1. A battery module comprising:

a plurality of battery cells stacked and arranged in parallel with each other so as to be spaced apart from each other by a predetermined distance;

heat-radiating plates closely adhered to both surfaces of each of the battery cells and formed to protrude toward both sides of the battery cells; and

supporters interposed between one pair of heat-radiating plates at both sides of each of the battery cells, respectively,

wherein curved parts are formed at both sides of each of the heat-radiating plates, both ends of one pair of adjacent heat-radiating plates are closely adhered to each other, and closely adhered parts between both side curved parts are formed to be spaced part from each other by a predetermined distance.

2. The battery module of claim 1, wherein the battery cell is formed of two battery cells closely adhered to each other to thereby be paired with each other.

3. The battery module of claim 1, wherein the curved parts of the heat-radiating plates protrude outwardly in a direction in which adjacent heat-radiating plates face each other.

4. The battery module of claim 3, wherein grooves are formed in central portions of both sides of the supporter, such that plane parts formed at both sides of the curved parts of the heat-radiating plates are formed to come in contact with the supporter.

5. The battery module of claim 1, wherein the curved parts of the heat-radiating plates protrude inwardly in a direction in which adjacent heat-radiating plates face each other.

6. The battery module of claim 5, wherein the curved parts are formed to be staggered with each other.

7. The battery module of claim 1, further comprising a cooling tube coupled to both ends of the heat-radiating plates and formed with a refrigerant channel.