▎ 摘　　要

NOVELTY - The pole component (100) has an active material layer (110) which is composed of silicon material, conductive agent and fibrosis agglomerant. A current collector (120) is arranged on the upper and lower side surfaces of the active materials layer, where the current collector is made of carbon felt material. USE - Silicon negative electrode pole component of a battery mounted in an electric automobile. ADVANTAGE - Since the fibrous binder is used in the active material layer, a cross-linked bonding network, thus effectively improving the flexibility of the pole component, and overcoming the deformation and stress problems caused by the volume expansion of the active material. Hence, the cycle stability of the battery is improved. Since the carbon felt material is used to make the current collector on the silicon negative pole component, the own rigidity can inhibit the expansion of the pole component. The life of the battery is prolonged, and the own chemical properties can avoid the corrosion of the electrolyte on the current collector, thus improving the battery life and cycle performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of silicon negative electrode sheet. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the silicon negative electrode pole component. 100Silicon negative electrode pole component 110Active material layer 120Current collector