METHOD FOR MANUFACTURING OF LITHIUM-ION ACCUMULATOR ELECTRODES Russian patent published in 2015 - IPC H01M4/26 H01M4/62 H01M10/28 

FIELD: electricity.

SUBSTANCE: according to the invention for the purpose of manufacturing of active electrode mass gel-polymer electrolyte based on butadiene-nitrile rubber and its copolymers or polyacrylate or styrol and acrylate copolymer is used as a binding agent. Mixing of components is carried out simultaneously with ultrasonic material dispersion. With the following ratio of the mixture components, % (dry weight): active material - 76-96; acetylene carbon black - 0.1-12, gel-polymer electrolyte based on butadiene-nitrile rubber and its copolymers or polyacrylate or styrol and acrylate copolymer - 4-12, and drying of electrodes is made till residual moisture is equal to 0.001%. Gel-polymer or solid polymer electrolytes of variable composition are used as electroconductive and binding agent. The following substances are used as a plasticising agent for gel-polymer electrolyte: propylene carbonate, dimethyl carbonate, diethyl carbonate, and their mixtures with ethylene carbonate; the following substances are used as ionogenic lithium salt: LiPF₆, LiClO₄, LiBF₄, LiAsF₆; material of the negative electrode may include natural or synthetic graphites, material of the negative electrode may include LiFePO₄, LiCoO₂, LiNiO₂.

EFFECT: increased specific discharge capacity, reduced ecological risk and improved explosion safety.

2 tbl, 5 ex