In addition to cost reduction and efficiency increase, the new development direction of the industry is to replace carbon with silicon. The theoretical specific capacity of silicon is 4200mAh/g, far more than 372mAh/g of graphite anode materials. Although in theory, silicon materials have great development potential than carbon materials, but under the current technical conditions, there are a series of problems in the practical application of silicon materials. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for iron removal of anode materials.
First of all, the efficiency of the first cycle is low. In the process of charging lithium ion batteries, the organic electrolyte will decompose on the negative surface to form a solid electrolyte phase interface film, which irreversibly consumes the positive lithium ions. If lithium ions cannot be recycled, the battery capacity and energy density will inevitably decline. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC after removal of iron is 5-10%;
Secondly, the volume expansion problem is serious. The volume expansion and contraction change in the silicon charging and discharging process is up to 320%, and the graphite after the removal of iron by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC is only 12%. The physical volume expansion will directly lead to the negative electrode failure, and cause serious safety problems.
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