ANODE MATERIALS OF LITHIUM SECONDARY ION BATTERY

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Provided in the present invention is a binder which is suitable for each active material such as silicon which is high capacity negative material, a silicon-carbon composite and a silicon alloy-based carbon electrode active material, which decreases swelling, has greater connection between active material particles and greater connection with a current collector and makes service life and secondary battery performance better. Provided is a binder which has greater dispersion for active material particles and conducting materials, and dispersion thereof is also excellent, thereby improving the secondary battery performance.