Battery module

Abstract

The invention discloses a battery module. The battery module comprises a battery cell and a module shell, the battery cell comprises a battery cell shell and a plurality of pole cores, the plurality of pole cores are arranged in the battery cell shell in parallel, a heat absorption flame-retardant plate is arranged between every two adjacent pole cores, and the battery cells are located in the module shell. According to the battery module disclosed by the embodiment of the invention, the heat absorption flame-retardant plate is arranged between the two adjacent pole cores in the battery cell and can absorb and insulate heat, so that when the battery cell of the battery module is out of control, the heat absorption flame-retardant plate can control the out-of-control phenomenon of a singlepole core; and the out-of-control pole cores are effectively prevented from influencing other non-out-of-control pole cores, so that the out-of-control risk of the whole battery module can be reducedas much as possible, damage to auxiliary sampling wiring harnesses and the like of the battery module can be prevented, and the safety performance of the battery is improved.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery module. Background technique [0002] At present, the fire protection of battery modules is to install heat insulation materials between the cells of the battery module to prevent the spread of fire, and physically isolate the battery out of control from the outside of the cells. However, when a single cell is completely out of control It is already very serious when the heat or flame spreads in all directions. Not only is the cell out of control itself difficult to control, but it will also cause damage to the auxiliary facilities of the battery module (such as sampling wiring harness, low-voltage wiring harness, etc.), which will further cause continuous failure of the battery module. Risk of loss of control. Contents of the invention [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. F...

AI Technical Summary

Problems solved by technology

[0002] At present, the fire protection of battery modules is to install heat insulation materials between the cells of the battery module to prevent the spread of fire, and physically isolate the battery out of control from the outside of the cells. However, when a single cell is completely out of control It is already very serious when the heat or flame spreads in all directions. Not only is the cell out of control itself difficult to control, but it will also cause damage to the auxiliary facilities of the battery module (such as sampling wiring harness, low-voltage wiring harness, etc.), which will further cause continuous failure of the battery module. out of control risk

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