Abstract: A method for making a cathode active material of a lithium ion battery, the cathode active material being represented by a chemical formula of Li[(Ni0.8Co0.1Mn0.1)1-xMox]O2, wherein 0<x?0.05. Source liquid solutions of Li, Ni2+, Co2+, Mn2+, and Mo6+ are mixed in stoichiometric ratio in a multi-carboxylic acid solution to form a solution. The solution is heated at 50° C. to 80° C. to form a wet gel. The wet gel is spray dried to form a dry gel. The dry gel is heated at a first temperature and then at a second temperature, the first temperature is in a range of 400° C. to 500° C., the second temperature is in a range of 750° C. to 850° C.

Abstract: A method for making a cathode active material of a lithium ion battery, the cathode active material being represented by a chemical formula of Li[(Ni0.8Co0.1Mn0.1)1-xMox]O2, wherein 0<x?0.05. Source liquid solutions of Li, Ni2+, Co2+, Mn2+, and Mo6+ are mixed in stoichiometric ratio in a multi-carboxylic acid solution to form a solution. The solution is heated at 50° C. to 80° C. to form a wet gel. The wet gel is spray dried to form a dry gel. The dry gel is heated at a first temperature and then at a second temperature, the first temperature is in a range of 400° C. to 500° C., the second temperature is in a range of 750° C. to 850° C.

Abstract: A cathode active material of a lithium ion battery includes a number of LiNi0.5Mn1.5O4 particles and an AlF3 layer coated on a surface of the LiNi0.5Mn1.5O4 particles. A method for making the cathode active material is provided. In the method, a number of LiNi0.5Mn1.5O4 particles are provided. The LiNi0.5Mn1.5O4 particles are added to a trivalent aluminum source solution to form a solid-liquid mixture. A fluorine source solution is put into the solid-liquid mixture to react and form an AlF3 layer coated on the surface of the LiNi0.5Mn1.5O4 particles. The coated LiNi0.5Mn1.5O4 particles are heat treated to form the cathode active material. A lithium ion battery including the cathode active material is also provided.

Abstract: A cathode active material of a lithium ion battery includes a number of LiNi0.5Mn1.5O4 particles and an AlF3 layer coated on a surface of the LiNi0.5Mn1.5O4 particles. A method for making the cathode active material is provided. In the method, a number of LiNi0.5Mn1.5O4 particles are provided. The LiNi0.5Mn1.5O4 particles are added to a trivalent aluminum source solution to form a solid-liquid mixture. A fluorine source solution is put into the solid-liquid mixture to react and form an AlF3 layer coated on the surface of the LiNi0.5Mn1.5O4 particles. The coated LiNi0.5Mn1.5O4 particles are heat treated to form the cathode active material. A lithium ion battery including the cathode active material is also provided.

Abstract: The present disclosure relates to a cathode active material for lithium battery including a metal oxide represented by a formula of LiNi0.5Mn0.5-x-yCoxMgyO2, wherein 0.05?x?0.15 and 0.01?y?0.1. The present disclosure also relates to a method for making a cathode active material including steps of dissolving Ni, Mn, Co, and Mg sources to the liquid solvent at a molar ratio of Ni/Mn/Co/Mg=0.5/(0.5?x?y)/x/y, wherein 0.05?x?0.15, and 0.01?y?0.1 to achieve a liquid solution, adding a precipitant into the liquid solution, to achieve a coprecipitation, separating the coprecipitation from the liquid solution, and heating the coprecipitation mixed with a Li source at a temperature of about 600° C. to about 900° C.

Abstract: The present disclosure relates to a cathode active material for lithium battery including a metal oxide represented by a formula of LiNi0.5Mn0.5-x-yCoxMgyO2, wherein 0.05?x?0.15 and 0.01?y?0.1. The present disclosure also relates to a method for making a cathode active material including steps of dissolving Ni, Mn, Co, and Mg sources to the liquid solvent at a molar ratio of Ni/Mn/Co/Mg=0.5/(0.5?x?y)/x/y, wherein 0.05?x?0.15, and 0.01?y?0.1 to achieve a liquid solution, adding a precipitant into the liquid solution, to achieve a coprecipitation, separating the coprecipitation from the liquid solution, and heating the coprecipitation mixed with a Li source at a temperature of about 600° C. to about 900° C.