| 摘要 |
PURPOSE: A stabilization method of lithium ion secondary battery is provided to enhance the stability of the battery by reducing the moisture contents of electrolyte with sustaining the electrolyte contents. CONSTITUTION: A stabilization method of lithium ion secondary battery comprises steps of: mixing respective active material having positive and negative polars, conductor of carbon, binder of polyvinilliden fluoride(PVDF) and organic solvent of NMP to prepare active material slurry; separating them using vacuum; coating them on a substrate consisted in aluminum foil; drying and rolling it. MgO or aluminum oxide(Al2O3) containing Na or lithium ion, or fumed silica powder are added in the PVDF/NMP solution or the mixture of the active material and the conductor.
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