Anode composite material, method for making the same, and lithium ion battery

A lithium ion battery comprising a cathode electrode, an anode electrode, a separator, and an electrolyte liquid, the cathode electrode comprises an anode composite material comprising:

• an anode active material;
• and
• a polymer composited with the anode active material,
• wherein the polymer is obtained by polymerizing a maleimide type monomer with an organic diamine type compound, the maleimide type monomer is selected from the group consisting of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer, a maleimide type derivative monomer, and combinations thereof;
• and the organic diamine type compound is represented by formula III or formula IV:
• wherein R3 is a bivalent organic substituent and R4 is another bivalent organic substituent.

A method for making an anode composite material comprising:

• polymerizing a maleimide type monomer with an organic diamine type compound to form a polymer;
• and
• compositing the polymer with an anode active material;
• wherein the maleimide type monomer is selected from the group consisting of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer, a maleimide type derivative monomer, and combinations thereof;
• and the organic diamine type compound is represented by formula III or formula IV:
• wherein R3 is a bivalent organic substituent and R4 is another bivalent organic substituent.