| abstract |
A method for evaluating the electrode material of a lithium ion battery after a cycle by using a button battery mainly includes the following steps: S1, disassembling the lithium ion full battery, and taking out the battery electrode pole piece; S2, wiping off one side of the pole piece obtained in step S1, Vacuum baking; S3, punching the pole piece obtained in step S2, and assembling into a button battery; S4, carrying out an electrochemical performance test on the button battery obtained in step S3; S5, according to the electrical performance test of step S4 Evaluate the capacity development of electrode materials. On the one hand, the invention can assemble the positive and negative pole pieces of the battery after the cycle into a button battery; |