What is the cause of the decline in the battery capacity of the scrubber

1. Changes in the structure of the positive electrode material of the scrubber battery; because the positive electrode material is an important source of lithium-ion battery packs, when the lithium-ion battery is removed from the positive electrode, in order to maintain the neutral state of the material, the metal elements will be oxidized Reaching a high oxidation state is accompanied by a change in composition. The transformation of components easily leads to phase transition and changes in bulk structure. Therefore, the phase transformation of the electrode material will cause the change of the lattice parameters and the lattice mismatch. The induced stress caused by this will cause the fracture of the crystal grains, and initiate the propagation of cracks, causing mechanical damage to the structure of the material, thus causing electrical damage. The degradation of chemical performance has also led to the degradation of our battery capacity. 2. The structure of the negative electrode material of the washing machine battery; the decay of the capacity of the lithium ion battery first occurs in this stage of formation, at this stage, SEI will be formed on the surface of the negative electrode, consuming some lithium ions. With the use of lithium-ion batteries, changes in the graphite structure will also cause the battery capacity to decrease, and therefore also cause the capacity of the lithium-ion battery to decrease. 3. Overcharge reaction of the positive electrode of the battery: When the ratio of the positive electrode active material to the negative electrode active material is too low, the positive electrode overcharge is prone to occur. The capacity loss caused by overcharging of the positive electrode of the scrubber battery is mainly due to the appearance of electrochemical inert substances (such as Co3O4, Mn2O3, etc.), which destroys the capacity balance between our electrodes, which will also cause capacity degradation. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: The service life of high-rate lithium-ion batteries above 20C is mostly within 300 charge and discharge cycles