METHOD FOR PREPARING NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY

摘要

negative active material of the production process , negative active material and a lithium secondary relates to a cell , the reversible lithium intercalation / de- intercalation step of mixing the spherical graphite and silicon capable of migration ; Mixing the mixed spherical graphite and low crystalline carbon and silicon ; Preparing a mixture by the spherical graphite , low-crystalline silicon and the carbon pellets (pellet); And a step of sintering by heating the pellets ; can be provided a method of manufacturing a negative active material comprising a . ;