Battery pack and vehicle

Abstract

The invention discloses a battery pack and a vehicle. The battery pack comprises a shell, wherein the shell is internally provided with a plurality of mounting grooves and heat dissipation channels, and the mounting grooves are communicated with the heat dissipation channels; a plurality of battery cell groups, wherein the battery cell groups are mounted in the mounting grooves; and an explosion-proof valve which is suitable for communicating the heat dissipation channel with the outside. According to the battery pack disclosed by the invention, the plurality of battery cell groups are mountedin the plurality of mounting grooves, and the plurality of mounting grooves are communicated with the heat dissipation channel, so that the heat flow direction can be guided, the heat spreading is prevented to the greatest extent, the risk of fire explosion is reduced, the loss of thermal runaway is reduced, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a battery pack and a vehicle. Background technique [0002] With the country's vigorous promotion of new energy, electric vehicles have become the mainstream trend in the future, and the pursuit of high energy density has become the mainstream of power battery research. However, high energy density is accompanied by high safety risks, and thermal runaway and thermal spread lead to frequent explosions and fires. [0003] At present, heat insulation is carried out by adding heat insulation materials between the cells in the market. The heat insulation materials can only slow down the heat transfer between the cells, but after a cell heats out of control, the heat insulation materials cannot effectively isolate the heat from spraying. The high-heat, high-energy electrolyte solution produced leads to serious heat spread. Contents of the invention [0004] In view of this, the present i...

AI Technical Summary

Problems solved by technology

However, high energy density is accompanied by high safety risks, and thermal runaway and thermal spread lead to frequent explosions and fires

[0003] At present, heat insulation is carried out by adding heat insulation materials between the cells in the market. The heat insulation materials can only slow down the heat transfer between the cells, but after a cell heats out of control, the heat insulation materials cannot effectively isolate the heat from spraying. High heat and high energy electrolyte, resulting in serious heat spread

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