Negative electrode active material for lithium secondary battery and lithium secondary battery including negative electrode comprising the negative electrode active material

摘要

Silicon (Si); Manganese (Mn); Iron (Fe), molybdenum (Mo), chromium (Cr), zinc (Zr), titanium At least one component A selected from (Ti), nickel (Ni), vanadium (V), tungsten (W) and yttrium (Y); And carbon (c), boron (B), oxygen (O), nitrogen (N), phosphorus (P) and sulfur (S) is a negative active material for a lithium secondary battery comprising at least one component B selected from, Si, Mn and The total content of component A is 70 atomic% or less, the content of component B is 30 atomic% or more, and the total content of Mn and component A is 10 to 35 atomic%, containing a negative active material for lithium secondary batteries and a negative active material including the same. A lithium secondary battery including a negative electrode is presented.