A NOVEL NEGATIVE ACTIVE MATERIAL, FABRICATION METHOD THEREOF, A NEGATIVE ELECTRODE USING THE NEGATIVE ACTIVE MATERIAL, AND AQUEOUS LITHIUM SECONDARY CELL CONTAINING THE NEGATIVE ACTIVE MATERIAL WITHIN THE NEGATIVE ELECTRODE

摘要

Provided are a negative electrode active material, which maintains a stable structure thereof during charging and discharging of a battery, and an aqueous lithium secondary cell, which has a high discharge capacity and a long charge-discharge cycle life. The negative electrode active material has a composition of d-MoS2(FeS2, ZnS). The negative electrode active material is prepared by the steps of: (1) sintering MoS2 powder to prepare modified d-MoS2; (2) ball-milling FeS and S to obtain a sample and reacting the sample under a controlled temperature program to prepare FeS2; (3) mixing the resultant of the step (1) with the resultant of the step (2), ball-milling the mixture to prepare a mixture of d-MoS2 and FeS2; and (4) adding ZnS to the mixture of the step (3) to be ball-milled.