BATTERY CELL AND BATTERY MODULE

A battery cell and a battery module. The battery cell includes a housing; and an electrode assembly accommodated in the housing. The electrode assembly includes a positive electrode sheet, a separator, and a negative electrode sheet that are stacked together, the separator is provided between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet, the negative electrode sheet, and the separator are wound together to form the electrode assembly. The negative electrode sheet includes: a negative electrode substrate; a negative electrode active material layer coated on the negative electrode substrate; and a negative electrode tab extending in a first direction and connected to the negative electrode substrate. The battery cell satisfies: 2.702 ≤ 2H1-2T1×n-(T2-T3) ≤ 19.958. According to the present application, the cycle life of the battery cell is enhanced, and the comprehensive performance of the battery cell is further improved.