Negative electrode composition, negative electrode for lithium secondary battery including same, lithium secondary battery including negative electrode, and method of manufacturing negative electrode

Abstract

A negative electrode composition, a negative electrode for a lithium secondary battery including the same, a lithium secondary battery including a negative electrode, and a method a manufacturing the negative electrode. The negative electrode composition includes a silicon-containing active material; a negative electrode conductive material; and a negative electrode binder. The negative electrode binder includes a first binder having a Young's modulus of 1×103 MPa or more and a second binder having a strain value of 15% or more. The negative electrode binder satisfies the equation 1≤X/Y<4, where Y means parts by weight of the first binder based on 100 parts by weight of the negative electrode binder, and X means parts by weight of the second binder based on 100 parts by weight of the negative electrode binder.

Dependencies are inferred from the claim text.