Multi-column battery pack and energy storage system

Abstract

According to the technical scheme, the multi-column battery pack comprises a shell, at least two columns of square battery cells and a plurality of water flow channels, the battery cells are installed in the shell, the two opposite side faces of a battery cell shell are each provided with a heat superconducting pipeline and a refrigerant channel, and the two ends of each refrigerant channel are provided with connecting plugs protruding towards the outer side of the shell; the water flow channel is provided with an insertion opening corresponding to the insertion head, and the battery cell is inserted into the water flow channel. The square battery cell shell in the battery module can quickly absorb heat generated in the charging and discharging process of the battery cells and uniformly spread the heat, the water flow channel is communicated with the refrigerant channel, and the heat can be conducted out through movement of a refrigerant in the water flow channel and the refrigerant channel, so that quick heat dissipation and temperature rise of the battery module are realized. The invention further provides an energy storage system with the battery pack, and as the battery pack can quickly dissipate heat or heat up, the normal use of the energy storage system can be prevented from being influenced by insufficient heat dissipation or too low temperature.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a multi-row battery pack and an energy storage system. Background technique [0002] With the extensive application of batteries in production and life, battery safety has become a topic of concern. Failure to dissipate heat in a timely manner during battery charging and discharging will lead to reduced battery performance and life attenuation, and severe problems will lead to breaking, smoking and explosion. At present, the thermal management of batteries mainly adopts air cooling, which has low efficiency; or adopts coil cooling at the bottom of the battery pack for liquid cooling, and the heat dissipation path is long, resulting in low heat dissipation efficiency. Contents of the invention [0003] The main purpose of the present invention is to propose a multi-row battery pack and energy storage system, aiming to solve at least one of the above technical problems. In or...

AI Technical Summary

Problems solved by technology

In the process of battery charging and discharging, if the heat is not dissipated in a timely manner, the performance of the battery will be reduced and the life of the battery will be attenuated. In severe cases, it will cause smoke and explosion.

At present, the thermal management of batteries mainly adopts air cooling, which has low efficiency; or adopts coil cooling at the bottom of the battery pack for liquid cooling, and the heat dissipation path is long, resulting in low heat dissipation efficiency.

Images