| abstract |
Disclosed herein is a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in an anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: a cathode; an anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises a binder containing carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), and polysaccharide including a sulfonate functional group and an amine group. |