Cooling device for battery pack and rechargeable battery

A cooling device for a battery pack including a plurality of rechargeable batteries arranged in parallel, the cooling device comprising:

• a plurality of cooling medium paths between the rechargeable batteries formed in a horizontal direction;
• and
• a cooling medium delivery device for delivering a cooling medium to the cooling medium paths,
• wherein the cooling medium delivery device includes:
• a pair of cooling medium introduction ducts having delivery ports in such a manner that the cooling medium is delivered alternately in horizontally opposed directions to each of the cooling medium paths;
• and a cooling medium compression transport device for supplying the cooling medium to both the cooling medium introduction ducts.

A cooling device for a battery pack including a plurality of prismatic rechargeable batteries arranged in parallel, the cooling device comprising:

• a cooling medium path for allowing a cooling medium to flow in right and left directions, formed between the rechargeable batteries;
• and
• a cooling medium delivery device for delivering the cooling medium to the cooling medium path,
• wherein the cooling medium delivery device includes:
• a pair of cooling medium delivery hoods, provided on both right and left sides of the battery pack, for delivering the cooling medium from any of right and left directions to each of the cooling medium paths;
• a cooling medium compression transport device capable of reversal switching a compression transport direction of the cooling medium, connected to at least one of the cooling medium delivery hoods;
• temperature detection members for detecting temperatures of vicinities of both horizontal ends of an arbitrary rechargeable battery;
• and a control device for controlling the cooling medium compression transport device for switching a compression transport direction of the cooling medium in accordance with the detected temperatures.