(EN) The invention relates to a negative electrode and an electrochemical device including the negative electrode and an electronic device. The negative electrode comprises a negative electrode current collector, a first negative electrode active material layer and a second negative electrode active material layer. The single surface of the first negative electrode active material layer is arranged atthe first part of the negative electrode current collector; the two surfaces of the second negative electrode active material layer are arranged at a second part, different from the first part, of thenegative electrode current collector, wherein the ratio of the unit area weight of the first negative electrode active material layer to the unit area weight of the second negative electrode active material layer on the negative electrode current collector is 0.47-0.52, and the ratio of the compaction density of the first negative electrode active material layer to the compaction density of the second negative electrode active material layer is 0.9-1.1. Polarization and lithium precipitation of the electrochemical device can be improved from the negative electrode structure direction by adopting the negative electrode so that the cycle performance and the safety performance of the electrochemical device are improved.
(ZH) 本申请涉及负极及包含所述负极的电化学装置及电子装置。所述负极包括：负极集流体、第一负极活性材料层以及第二负极活性材料层。所述第一负极活性材料层单面设置在所述负极集流体的第一部分，且所述第二负极活性材料层双面设置在所述负极集流体的不同于所述第一部分的第二部分，其中所述第一负极活性材料层与所述第二负极活性材料层在所述负极集流体上的单位面积重量的比值为0.47至0.52，且所述第一负极活性材料层与所述第二负极活性材料层的压实密度的比值为0.9至1.1。通过采用上述负极能够从负极结构方向改善电化学装置的极化和析锂，从而提升电化学装置的循环性能和安全性能。
