A high-safety lithium-ion battery pack

Abstract

This utility model discloses a high-safety lithium-ion battery pack, which includes a battery pack, a top shell, and a bottom shell, with the top shell and bottom shell correspondingly fastened together. The battery pack is housed between the top shell and the bottom shell. The bottom shell includes a first shell, a liquid cooling plate, and a protective structure. The first shell is configured as a box structure with an opening on the top side. The liquid cooling plate is disposed at the bottom of the first shell. The protective structure is disposed on the side wall of the first shell. The protective structure is configured as a multi-layer plate structure, including an inner layer, a middle layer, and an outer layer, which are arranged sequentially from the inside to the outside. The outer layer is configured as a honeycomb plate layer, the middle layer is configured as a corrugated plate layer, and the inner layer is configured as an electromagnetic shielding layer. The high-safety lithium-ion battery pack integrates the liquid cooling plate at the bottom of the battery pack, which can directly contact the bottom surface of the battery pack to shorten the heat conduction path. The close contact between the battery pack and the top shell allows the thermal conductivity of the top shell to be used for auxiliary heat dissipation.

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