Insulation spacer, battery cell, and electronic device

A battery cell, wherein the battery cell comprises:

• the insulation spacer;
• an electrode assembly;
• a housing defining an accommodation cavity, wherein both the electrode assembly and the insulation spacer are disposed in the accommodation cavity;
• and
• a feedthrough connector passing through the housing;
• the insulation spacer comprises a first wall face and a second wall face disposed opposite to each other along a thickness direction of the insulation spacer;
• the first wall face faces the electrode assembly;
• the insulation spacer further comprises a first edge wall located between the first wall face and the second wall face;
• a first opening is provided on the first wall face or the first edge wall, a second opening is provided on the second wall face, a first channel is provided inside the insulation spacer, one end of the first channel communicates with the first opening, and another end of the first channel communicates with the second opening;
• wherein the electrode assembly comprises a first tab, the first tab passes through the first opening, the first channel, and the second opening in sequence, and bends to closely fit the second wall face;
• the first tab comprises a connecting portion located on a side of the first tab on which the second wall face of the insulation spacer is positioned;
• an end portion of the feedthrough connector is electrically connected to a wall face of the connecting portion, the wall face of the connecting portion being oriented away from the insulation spacer, and the end portion of the feedthrough connector being located in the accommodation cavity.