Carbon nanotube/graphene/silicon composite LITHIUM battery cathode MATERIAL and PTMS LITHIUM COBALT ACID MATERIAL The preparation method of MAGNETIC electrode is used to overcome the severe volume effect of silicon anode in the electrochemical lithium storage process, which makes it difficult to form a stable surface solid electrolyte film and its low intrinsic conductivity leads to poor electrical cycling performance.
The preparation method of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic consists of nickel foam, and a graphene layer and a silicon blended carbon nanotube layer arranged alternately on the nickel foam, and the top layer is a graphene layer, and the top layer of graphene is also covered with a thick graphene protective layer.
The multi-layer structure of graphene layer alternating silicon/carbon nanotube composite layer is used to make three-dimensional composite of silicon powder by using the high mechanical properties and high electrical conductivity of graphene and carbon nanotubes, which greatly improves the negative electrode ratio and cycle performance under the premise of maintaining a high specific capacity of silicon The MAGNETIC preparation method has the advantages of simple process, low cost and good repeatability.
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