Battery cell, battery, power consumption device, and manufacturing method for battery cell

A manufacturing method for a battery cell, comprising:

• providing a housing;
• mounting a protective member on an inner wall of the housing, the protective member separating an inner space of the housing into a first chamber and a second chamber;
• disposing a battery core in the first chamber;
• disposing an elastic member in the second chamber, the elastic member being located between the housing and the protective member, the protective member being configured such that the elastic member is compressed with expansion of the battery core and stretches with contraction of the battery core;
• mounting a first gas-permeable component on the protective member, the first gas-permeable component being configured for one-way communication between the first chamber and the second chamber to enable gas in the first chamber to enter the second chamber;
• and
• mounting a second gas-permeable component on the housing, the second gas-permeable component being configured for one-way communication between the second chamber and an outer space of the housing to enable gas in the second chamber to be discharged out of the housing.