Battery cell, battery device, power-consuming device

Abstract

Battery cell comprising a stacked electrode assembly and a housing body, the housing body comprising a receiving chamber, the stacked electrode assembly being arranged in the receiving chamber, and the stacked electrode assembly comprising a positive electrode plate, a negative electrode plate and a separator arranged between the positive electrode plate and the negative electrode plate;wherein the positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer arranged on at least one side of the positive electrode current collector, wherein the positive electrode active material layer comprises lithium-containing phosphate, and the positive electrode current collector comprises a coating section and an electrode tab section, wherein the positive electrode active material layer is arranged on at least one surface of the coating section and the electrode tab section extends along a vertical direction of the battery cell from the coating section, wherein along the vertical direction of the battery cell the dimension of the positive electrode active material layer is 83% to 88% of the dimension of the housing body;wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector, wherein along the vertical direction of the battery cell there is a difference between the dimension of the negative electrode active material layer and the dimension of the positive electrode active material layer OH1, and 1.5 mm ≤ OH1 ≤ 3.3 mm; wherein the separator comprises a base film and a coating arranged on at least one side of the base film, the coating comprising a binder and fluorinated organic particles, and the total thickness of the coating is 3 µm to 7 µm.