BATTERY CELL

WIPO Patent Application WO/2021/119911

A1

The present application provides a battery cell, comprising an electrode assembly, a packaging bag, a bonding layer, and an electrolyte. The electrode assembly is packaged in the packaging bag and bonded to the packaging bag by means of the bonding layer. The total weight m(g) of the electrode assembly, the packaging bag, and the electrolyte, the minimum packaging strength F(N) between tabs of the electrode assembly and the packaging bag, the maximum bonding force f(N) of the bonding layer, the maximum distance x(mm) of the bonding layer in the width direction of the electrode assembly, and the maximum distance y(mm) of the bonding layer in the length direction of the electrode assembly satisfy the following relationship: 0.098 m/a≤f