Modular battery block structure

Abstract

The invention relates to a battery module block structure and particularly relates to a modular battery block structure. The modular battery block structure comprises a fixed bracket, an epoxy plate, not less than two series modules, another epoxy plate, a cooling device and another fixed bracket, which are sequentially superposed; the series modules are sequentially superposed; bus plates are arranged at two sides of each series module, a battery core is arranged in each series module; two ends of each battery core are connected with the corresponding bus plates separately; and the battery cores are connected between the series modules in series through the bus plates. The modular battery block structure is safe and reliable, the welding reliability can be ensured through ironing a battery core connection plate integrated with bus plates, the material cost and the production cost can be reduced, the weight of a battery pack is reduced, and automatic mass production and improvement of the production efficiency are conveniently achieved; and the temperature in the battery pack is reduced by using a heat pipe technology, so that the temperatures of batteries are always in a normal temperature range, the service life of power batteries is prolonged and the electrochemical properties, the energy efficiency and the security are improved.

Description

technical field [0001] The invention relates to a battery module structure, in particular to a modular battery group structure. Background technique [0002] Due to the increasingly serious environmental and energy problems, low-carbon and environmentally friendly energy has become an inevitable choice for future economic development. Hybrid vehicles and electric vehicles, as representatives of new energy vehicles, have also gradually developed and have been recognized by consumers and supported by the government. The power battery module is the main source of power for new energy vehicles, and it is also the main component and key technology of electric vehicles. [0003] The most notable feature of the application of power battery modules in the fields of electric vehicles and energy storage power stations is modular assembly, that is, many battery cells are assembled into battery modules, and then multiple battery modules are assembled in series / parallel into battery modu...

AI Technical Summary

Problems solved by technology

During the operation of lithium-ion batteries, there will be a large power consumption

Most of the consumed power is supplied to the external load, while the rest will be converted into Joule heat, reaction heat, polarization heat and side reaction heat, etc. The generation and rapid accumulation of heat will inevitably cause the internal temperature of the battery to rise, especially in high temperature environments When using or charging and discharging with high current, it may cause a violent chemical reaction inside the battery and generate a lot of heat. If the heat accumulates quickly inside the battery without time to dissipate, the battery may leak, outgas, smoke, etc. In severe cases, the battery will burn violently or even explode

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