High-safety battery pack

Abstract

The utility model relates to the technical field of batteries, in particular to a high-safety battery pack which comprises a box body, a whole pack explosion-proof valve and at least one layer of battery cells, each layer of battery cells is arranged in the box body and comprises a plurality of columns of battery cells which are sequentially arranged along a first preset direction, each column of battery cells comprises a plurality of battery cells which are sequentially arranged along a second preset direction; each battery cell is provided with a side cut corner, and a battery cell explosion-proof valve is arranged at the side cut corner of each battery cell; and in the first preset direction, an exhaust space is defined between the side tangent planes of the side tangent angles of any two adjacent battery cells in each layer of battery cells, so that an exhaust channel extending in the second preset direction is formed between any two adjacent columns of battery cells in each layer of battery cells. Therefore, the side corner is designed at the side part of the battery cell, so that the exhaust channel is formed, the exhaust effect of the battery pack is improved, the thermal runaway of the battery pack can be effectively inhibited, and meanwhile, the liquid cooling plate can cool high-temperature gas in the exhaust channel, so that the thermal runaway can be further inhibited.

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