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Forced air cooling system for large assembled lithium ion battery

A lithium-ion battery, forced air cooling technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of thermal management consistency and specific energy can not have both, achieve high practical value and market prospects, occupying space Small, simple structure

Active Publication Date: 2012-03-21
ZHEJIANG NARADA POWER SOURCE CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a forced air cooling system for large-scale combined lithium-ion batteries, which mainly solves the problem that the thermal management system for large-scale lithium-ion battery packs cannot have both thermal management consistency and specific energy

Method used

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  • Forced air cooling system for large assembled lithium ion battery
  • Forced air cooling system for large assembled lithium ion battery
  • Forced air cooling system for large assembled lithium ion battery

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Embodiment Construction

[0015] The present invention includes a compressor 1, a gas storage bottle 2 with a condenser, an air inlet port 3, a solenoid valve 4, an air supply pipe 5, a supersonic nozzle 6, and an air outlet duct 7; the gas storage bottle 2 is connected to the compressor , the compressed air is compressed by the compressor and enters the gas storage bottle for storage and cooling; the gas storage bottle 2 is connected to one or more air supply branch pipes 5, and the air supply pipe 5 is connected to the solenoid valve 4 through the air inlet port 3, and the The solenoid valve 4 is connected to one or more gas supply branch pipes 8, and one or more supersonic nozzles 6 are arranged on the gas supply branch pipes, and the supersonic nozzles 6 are located in the storage container of the combined lithium-ion battery.

[0016] The solenoid valve 4 can be controlled by the battery management system BMS of the combined lithium-ion battery.

[0017] The work of the compressor 1 can be control...

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Abstract

The invention provides a forced air cooling system for a large assembled lithium ion battery. The system is characterized in that: the system comprises a compressor, an air storage tank with a condenser, an air inlet interface, a solenoid valve, an air supply tube, ultrasonic nozzles, and an air outlet channel; the air storage tank is connected with the compressor, and compressed air which is compressed by the compressor enters the air storage tank and is cooled; the air storage tank is connected with one or more air supply tubes which are connected with the solenoid valve through the air inlet interface, the solenoid valve is connected with one or more branched air supply tubes which are respectively provided with one or more ultrasonic nozzles, and the one or more ultrasonic nozzles arearranged in a storage container of the assembled lithium ion battery. The system of the invention, which has the characteristics of simple structure, small occupation space, obvious cooling effect, light weight and the like and provides air cooling for assembled batteries of an automobile power battery pack module, an energy storage battery pack module and the like, has a very high practical value and a wide market prospect, and especially has a wide application space in fields of large capacity high voltage energy storage batteries and power batteries.

Description

technical field [0001] The invention relates to a forced air cooling system for a large combined lithium ion battery. Background technique [0002] Lithium-ion batteries are used in large-capacity, high-voltage applications such as power or energy storage, which inevitably involves the use of multiple series and parallel connections of battery cells. Since each battery cell is distributed in different positions in the entire system, the heat dissipation conditions It is different from the surrounding environment. Therefore, even if the internal resistance and connection of the battery cells are not considered, the temperature of each battery cell also has a certain difference. These differences will directly cause the battery self-discharge to be different, and have different effects on performance and life, which will deteriorate the consistency of the battery pack and affect the performance and life of the entire battery system. In order to ensure that each battery unit h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M10/613H01M10/625H01M10/6564
CPCY02E60/12
Inventor 李小平喻小平金云峰郭锋
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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