BATTERY, BATTERY MODULE, AND BATTERY PACK

Abstract

Embodiments of the present application relate to the technical field of batteries, and relate, for example, to a battery, a battery module, and a battery pack. The battery provided in the embodiments of the present application comprises a battery cell and an electric connection member, wherein the electric connection member is placed above the battery cell and is electrically connected to the battery cell, and the electric connection member is provided with an annular protrusion portion such that a release space is formed between the electric connection member and the battery cell. By forming the release space between the electric connection member and the battery cell, when the battery cell expands when charged, the release space can provide an effective gravity release area for the battery cell, thereby improving the safety in the use of the battery. The battery module and the battery pack use the described battery, so that when the battery cell expands when charged, an effective gravity release area can be provided for the battery cell, thereby improving the safety in the use of the battery module and the battery pack.

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