Hyundai Motor Company

Kia Motors Corporation

Incheon University Industry Academic Cooperation Foundation

Kiseok Koh

Yoon Sung Lee

Seung-Min Oh

Yeolmae Yeo

Tae-Hyun Kim

Junyoung Mun

Nakgyu Go

Kukjoo Lee

Disclosed herein are provided 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 a anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: an cathode; a anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises an electrode active material comprising a silicon-based material and graphite, a binder and a conductive material, and the binder comprises any one of heparin and lithium polyacrylate (LiPAA).

Lithium secondary battery and manufacturing method thereof

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.

Lithium secondary battery and binder for anode of the lithium secondary battery

Growing community of inventors

Suwon-si, South Korea

Kiseok Koh