Abstract: The present disclosure relates to a method for making a cathode active material coating liquid including steps of forming a phosphate ester solution by adding a phosphate ester in an alcoholic solvent, introducing an aluminum salt to the phosphate ester solution, the aluminum salt being soluble to the alcoholic solvent, and the aluminum salt reacting with the phosphate ester to form a homogeneous clear solution, and adding an acidity regulator to adjust a pH value of the homogenous clear solution to 6 to 7. The present disclosure also relates to a cathode active material coating liquid and a method for coating the cathode active material.

Abstract: The present disclosure provides a method for making a cathode active material coating liquid. A phosphate ester solution is formed by adding a phosphate ester in an alcoholic solvent. An aluminum nitrate is introduced in the phosphate ester solution. The aluminum nitrate is soluble to the alcoholic solvent, and reacts with the phosphate ester to form a homogeneous clear solution. A pH value of the homogeneous clear solution is regulated to a range from about 6 to about 7 by adding an acidity regulator. The acidity regulator contains ammonium cation. The ammonium nitrate is removed from the clear solution after regulating the pH value. A method for coating the cathode active material is also provided.

Abstract: The present disclosure relates to a method for making a cathode active material coating liquid including steps: forming a phosphate ester solution by adding a phosphate ester in an alcoholic solvent; and introducing an aluminum salt to the phosphate ester solution, the aluminum salt being soluble to the alcoholic solvent, and the aluminum salt reacting with the phosphate ester to form a homogeneous clear solution. The present disclosure also relates to a cathode active material coating liquid and a method for coating the cathode active material.

Abstract: The present disclosure provides a method for making a cathode active material coating liquid. A phosphate ester solution is formed by adding a phosphate ester in an alcoholic solvent. An aluminum nitrate is introduced in the phosphate ester solution. The aluminum nitrate is soluble to the alcoholic solvent, and reacts with the phosphate ester to form a homogeneous clear solution. A pH value of the homogeneous clear solution is regulated to a range from about 6 to about 7 by adding an acidity regulator. The acidity regulator contains ammonium cation. The ammonium nitrate is removed from the clear solution after regulating the pH value. A method for coating the cathode active material is also provided.

Abstract: The present disclosure provides a coating liquid for a cathode active material comprising a solvent and a phosphate salt coating precursor dissolved in the solvent. The solvent includes an alcoholic solvent. The coating precursor is capable of producing the phosphate salt under heating. The phosphate salt has a general formula of AlmMnPO4, wherein M has a valence state of k and is selected from one or more alkaline earth metal elements and transition metal elements, 0?m?1, 0<n?1, and 3m+kn=3. A method for making the coating liquid and a method for coating the cathode active material are also provided.

Abstract: The present disclosure relates to a method for making a cathode active material coating liquid including steps of forming a phosphate ester solution by adding a phosphate ester in an alcoholic solvent, introducing an aluminum salt to the phosphate ester solution, the aluminum salt being soluble to the alcoholic solvent, and the aluminum salt reacting with the phosphate ester to form a homogeneous clear solution, and adding an acidity regulator to adjust a pH value of the homogenous clear solution to 6 to 7. The present disclosure also relates to a cathode active material coating liquid and a method for coating the cathode active material.

Abstract: The present disclosure relates to a method for making a cathode active material coating liquid including steps: forming a phosphate ester solution by adding a phosphate ester in an alcoholic solvent; and introducing an aluminum salt to the phosphate ester solution, the aluminum salt being soluble to the alcoholic solvent, and the aluminum salt reacting with the phosphate ester to form a homogeneous clear solution. The present disclosure also relates to a cathode active material coating liquid and a method for coating the cathode active material.

Abstract: An anode electrode material and a lithium ion battery are disclosed. The anode electrode material includes an anode binder. The anode binder includes a polymer obtained by polymerizing a dianhydride monomer with a diamine monomer. At least one of the dianhydride monomer and the diamine monomer includes a silicon-containing monomer. The lithium ion battery includes an anode electrode, an electrolyte, a separator, and the cathode electrode, the anode electrode includes an anode active material, a conducting agent, and the anode binder.