The LITHIUM ions removed from the positive electrode will be consumed during the formation of the whole battery. If we can let the negative electrode be formed separately, and then assemble with the positive electrode after the negative electrode forms SEI film, in this way, the loss of positive lithium ions in the formation of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC can be avoided. And greatly improve the first efficiency and capacity of the whole battery. The key step here, of course, is to turn the negative electrode into its own,
The anode plate and the lithium plate are immersed in the electrolyte, and the external circuit is connected to charge. This ensures that the lithium ions consumed during formation come from the lithium metal sheet rather than the positive electrode. After the negative sheet is formed, and then assembled with the positive sheet, the cell does not need to be formed again, so as not to lose the PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC processing cathode material lithium ion due to the formation of SEI film negative, the capacity will be significantly improved.
The advantage of this prelithium method is that it can maximize the normalization process of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC, while ensuring that the SEI film formation effect is similar to that of the whole battery. However, the advance formation of negative electrode sheet and the assembly of positive and negative electrode sheet are too difficult to operate.
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