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A graft copolymer a method for producing the same a binder for a silicon anode including the same a silicon anode including the binder for the silicon anode and a lithium ion battery including the silicon anode
A graft copolymer a method for producing the same a binder for a silicon anode including the same a silicon anode including the binder for the silicon anode and a lithium ion battery including the silicon anode
The present invention relates to a graft copolymer, a method for preparing the same, a binder for a silicon negative electrode including the same, a silicon negative electrode including the binder for the silicon negative electrode, and a lithium ion battery including the silicon negative electrode, the graft copolymer of the present invention By graft polymerization of chitosan having strong mechanical strength and aniline-based polymer having excellent electrical conductivity, it can be used as a binder for a silicon negative electrode to alleviate the volume change of the silicon negative electrode and to have excellent battery performance. In addition, the chitosan has the advantage of being economical because it can be extracted from the shells of crustaceans, which are wastes, inexpensively, and has the advantage of producing a graft copolymer through radical polymerization, which has high reproducibility and a simple production process.
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