Battery cell, battery cell manufacturing method and equipment, battery, and electrical device

A battery cell manufacturing method, comprising:

• providing a housing and a plurality of electrode assemblies, wherein a pressure relief mechanism is disposed on a first wall of the housing, and the pressure relief mechanism is configured to release an internal pressure of the battery cell when the internal pressure of the battery cell exceeds a threshold;
• and
• letting the plurality of electrode assemblies be accommodated in the housing so that the pressure relief mechanism is located at a position on the first wall, wherein the position is opposite to a region between two adjacent electrode assemblies among the plurality of electrode assemblies.

A piece of battery cell manufacturing equipment, comprising:

• a providing module, configured to provide a housing and a plurality of electrode assemblies, wherein a pressure relief mechanism is disposed on a first wall of the housing, and the pressure relief mechanism is configured to release an internal pressure of the battery cell when the internal pressure of the battery cell exceeds a threshold;
• and
• an assembling module, configured to let the plurality of electrode assemblies be accommodated in the housing so that the pressure relief mechanism is located at a position on the first wall, wherein the position is opposite to a region between two adjacent electrode assemblies among the plurality of electrode assemblies.