▎ 摘　　要

NOVELTY - Silicon carbon cathode sheet comprises a current collector, two first silicon carbon layers, two conductive carbon coatings and two second silicon carbon layers, where the two surfaces of the current collector is coated with one of first silicon carbon layers. The first silicon carbon layers is coated on both sides of the current collector. The first carbon silicon layers is coated with a conductive carbon coating. The conductive carbon coatings is coated with a second silicon carbon layer. The conductive carbon coatings is includes 85-95% carbon mixture, 2-5% sodium carboxymethyl cellulose, and 3-10% styrene butadiene rubber. USE - The silicon carbon cathode sheet is useful for lithium ion battery (claimed). ADVANTAGE - The lithium ion battery can be cycled for 200 times; has good electrode cycle stability, discharge capacity retention rate of 91.8293.14%, and battery thickness of 0.020.04 mm, and small volume expansion after the cycle; and limits the volume expansion of the silicon-carbon pole piece. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for method for preparation of silicon carbon cathode sheet.