Abstract: A process for producing a lithium-containing composite oxide having a large volume capacity density, high safety, excellent durability for charge/discharge cycles, and excellent low temperature characteristics. An oxide of general formula LipNxMyOzFa (wherein N is at least one of Co, Mn or Ni, M is at least one of Al, an alkali earth metal element, a transition metal element other than N, 0.9?p?1.2, 0.97?x?1.00, 0?y?0.03, 1.9?z?2.2, x+y=1 and 0?a?0.02) can be produced.

Abstract: A cathode active material for a non-aqueous electrolyte secondary battery comprises a lithium-containing composite oxide powder, which is represented by the formula LipNxMyOzFa wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is zirconium and optionally at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than the element N, 0.9?p?1.1, 0.965?x?1.00, 0?y?0.035, 1.9?z?2.1, x+y=1 and 0?a?0.02, an atomic ratio of zirconium/the element N is in a range of at least 1.0 to 4.0. A method to produce the cathode active material is provided.

Abstract: To provide a cathode active material for a lithium secondary battery, which is low in gas generation and has high safety and excellent durability for charge and discharge cycles even at a high charge voltage. A process for producing a lithium-containing composite oxide represented by the formula LipLqNxMyOzFa (wherein L is at least one element selected from the group of B and P, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9?p?1.1, 1.0?q<0.03, 0.97?x<1.00, 0?y?0.03, 1.9?z?2.1, q+x+y=1 and 0?a?0.

Abstract: To provide a process for producing a lithium-containing composite oxide for a positive electrode of a lithium secondary battery, which has a large volume capacity density, high safety, excellent durability for charge and discharge cycles and excellent low temperature characteristics.

Abstract: Provided are a cathode active material for a non-aqueous electrolyte secondary battery with high operating voltage, high volume capacity density, high safety and excellent charge and discharge cyclic properties, and its production method. The cathode active material for a non-aqueous electrolyte secondary battery, which comprises a lithium-containing composite oxide powder, which is represented by the formula LipNxMyOzFa (wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than the element N, 0.9?p?1.1, 0.965?x<1.00, 0<y?0.035, 1.9?z?2.1, x+y=1 and 0?a?0.02), a surface layer of which contains zirconium, and the surface layer within 5 nm of which has an atomic ratio (zirconium/the element N) of at least 1.0.

Abstract: A process for producing a lithium-containing composite oxide having a large volume capacity density, high safety, excellent durability for charge/discharge cycles, and further, excellent low temperature characteristics, which is suitable for mass production, is provided. A process for producing a lithium-containing composite oxide represented by a general formula LipNxMyOzFa (wherein N is at least one type of element selected from the group consisting of Co, Mn and Ni, M is at least one type of element selected from the group consisting of Al, an alkali earth metal element and a transition metal element other than N, 0.9?p?1.2, 0.97?x?1.00, 0<y?0.03, 1.9?z?2.2, x+y=1 and 0?a?0.

Abstract: To provide a process for producing a lithium-containing composite oxide for a positive electrode of a lithium secondary battery, which has a large volume capacity density, high safety, excellent durability for charge and discharge cycles and excellent low temperature characteristics.

Abstract: A process for producing a lithium-containing composite oxide such as a lithium-cobalt composite oxide for a lithium secondary battery, excellent in durability for charge/discharge cycles and excellent in low temperature characteristics, is provided. A process for producing a lithium-containing composite oxide for positive electrode of lithium secondary battery, which is a process for producing a lithium-containing composite oxide represented by a general formula LipNxMyOzFa (wherein N is at least one type of element selected from the group consisting of Co, Mn and Ni, and M is at least one type of element selected from the group consisting of Al, an alkali earth metal element and a transition metal element other than N, 0.9?p?1.2, 0.97?x?1.00, 0<y?0.03, 1.9?z?2.2, x+y=1 and 0?a?0.

Abstract: A method for preparation for mesoporous oxide comprising a non silica oxide having a hexagonal pore structure periodicity and an average maximum pore length of from 2 nm to 5 nm, characterized by comprising blending 0.003 mol to 0.01 mol of TaCl5, NbCl5 or a mixture thereof and Al isopropoxide comprising 10 g of an aliphatic linear alcohol and 1 g of a template compound to prepare a mixture for forming a sol solution, adding 5 mol to 35 mol (based on the metal compounds) of water or an aqueous inorganic acid solution to the mixture followed by hydrolysis and polycondensation to give a sol solution, transferring the sol into an oxygen containing atmosphere followed by again at 40° C. to 100° C. to form a gel, and then calcinating the gel in an oxygen containing atmosphere at 350° C. to 550° C.; and the mesoporous oxide obtained by the method.

Abstract: To provide a cathode active material for a lithium secondary battery, which is low in gas generation and has high safety and excellent durability for charge and discharge cycles even at a high charge voltage. A process for producing a lithium-containing composite oxide represented by the formula LipLqNxMyOzFa (wherein L is at least one element selected from the group of B and P, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9?p?1.1, 1.0?q<0.03, 0.97?x<1.00, 0?y?0.03, 1.9?z?2.1, q+x+y=1 and 0?a?0.