Silicon - based anode industrialization continues to accelerate, is expected to be large - scale after this year. From the perspective of enterprise layout, 17 years ago began to research and development of silicon-based negative electrode, 10 years ago through certification and bulk shipment, successfully cut into the related industry chain, technology ahead of peers 2-3 years. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC output of silicon-based negative electrode, three years ago the shipment of carbon silicon negative 9,000 tons, negative permeability reached 2.5%.
PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. The main application challenges are as follows: 1) in the process of alloying, the volume expansion rate of silicon material can reach 300% (carbon material is only 16%), and the material is easy to powder; 2) The negative active substance is easy to fall off; 3) Expansion causes SEI film to break, and the SEI reconstructs during discharge, making it in the dynamic stage of destruction-repair. The thickness will continue to increase, the interface impedance will improve, and the active substance consumption.
We summarized the global demand of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for iron removal of silicon base anode is 25,000 tons. Assuming 15%/40%/100% permeability of silicon base anode in 25 years, the corresponding demand is 20/60/1.5 million tons.
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