Negative Active Material, Method For Preparing Same, Negative Electrode Composition, Negative Electrode Comprising Same For Lithium Secondary Battery, And Lithium Secondary Battery Comprising Negative Electrode

Abstract: The present invention relates to negative active material, a method for preparing same, a negative electrode composition, a negative electrode comprising same for a lithium secondary battery, and a lithium secondary battery comprising the negative electrode. The negative active material of the present invention is silicon-based active material containing pure Si active material, and unlike conventional pulverization-based production methods, is produced (silane gas) by controlling reaction conditions in a chemical method, and accordingly, silicon-based active material satisfying particular physical properties can be produced. When used, lithium intercalation and deintercalation reactions can be uniform during charging and discharging, and particle breakage can be reduced due to lowered stress to the silicon-based active material.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents