Battery pack for supplying power to electric tool

Abstract

The invention discloses a battery pack for supplying power to an electric tool. The battery pack comprises a shell; the terminal assembly is used for being connected with a tool terminal of the electric tool so as to transmit electric energy; the battery cell module is accommodated in the shell and is electrically connected with the terminal assembly, and the battery cell module at least comprises a plurality of battery cell units; wherein the energy density of the unit volume of the battery pack is greater than or equal to 110Wh / mm < 3 >.

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