Battery cell, battery device and power-consuming device

Abstract

Battery cell comprising a positive electrode sheet, a negative electrode sheet and a separator located between the positive electrode sheet and the negative electrode sheet, characterized in that the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, wherein the positive electrode film layer comprises a positive electrode active material, wherein the positive electrode active material comprises a lithium-containing phosphate with an olivine structure;the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a negative electrode active material, wherein the average particle size Dv50 of the negative electrode active material is 8 µm to 15 µm and the negative electrode active material comprises graphite;and wherein the negative electrode current collector comprises a negative electrode current collector section and at least two negative electrode tabs arranged on the same side of the negative electrode current collector section, the negative electrode tabs extending from the negative electrode current collector section along a first direction, the distance between the center lines of two adjacent negative electrode tabs being 10 mm to 350 mm, the center lines being parallel to the first direction.