Abstract: A method for making a separator of a lithium ion battery is provided. In the method, a modifier, and a porous membrane are provided. The modifier is a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. The modifier is coated on a surface of the porous membrane to form a coating layer. The coated porous membrane is dried to form a modifier layer disposed on the surface of the porous membrane.

Abstract: A method for making a modified current collector of a lithium ion battery is provided. In the method, the modifier and a metal plate are provided. The modifier is a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. The modifier is coated on a surface of the metal plate to form a coating layer. The coated metal plate is heat treated to transform the coating layer into a protective film formed on the surface of the metal plate.

Abstract: The present disclosure relates to a lithium ion battery. The lithium ion battery cathode includes a cathode, a separator, an anode, and a nonaqueous electrolyte solution. The cathode includes a cathode current collector and a cathode material layer disposed on a surface of the cathode current collector. The cathode material layer comprises cathode active material, conductive agent, and adhesive uniformly mixed together. The cathode active material comprises cathode active material particles and AlPO4 layers coated on surfaces of the cathode active material particles. The separator includes a porous membrane and a protective layer coated on a surface of the porous membrane. The protective layer prevents the separator from being melted during charging or discharging of the lithium ion battery.

Abstract: The present disclosure relates to a lithium ion battery. The lithium ion battery cathode includes a cathode, a separator, an anode, and a nonaqueous electrolyte solution. The cathode includes a cathode current collector and a cathode material layer disposed on a surface of the cathode current collector. The cathode material layer comprises cathode active material, conductive agent, and adhesive uniformly mixed together. The cathode active material comprises cathode active material particles and AlPO4 layers coated on surfaces of the cathode active material particles. The separator includes a porous membrane and a protective layer coated on a surface of the porous membrane. The protective layer prevents the separator from being melted during charging or discharging of the lithium ion battery.

Abstract: A modifier of a lithium ion battery includes a clear solution fabricated from a phosphorous source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. A molar ratio of the trivalent aluminum source, the metallic oxide, and the phosphorous source is set by (MolAl+MolMetal):Molp=about 1:2.5 to about 1:4. MolAl is the amount of substance of an aluminum element in the trivalent aluminum source, MolMetal is the amount of substance of a metallic element in the metallic oxide, and Molp is the amount of substance of a phosphorous element in the phosphorous source.

Abstract: An electrode composite material includes an individual electrode active material particle and a protective film coated on a surface of the particle. A composition of the protective film is AlxMyPO4, AlxMy(PO3)3, or a combination thereof. M represents at least one of Cr, Zn, Mg, Zr, Mo, V, Nb, or Ta. A valence of M is represented by k, in which 0<x<1, 0<y<1, and 3x+ky=3. In addition, a molar ratio of an aluminum element, an M element, and a phosphorous element in AlxMyPO4 or AlxMy(PO3)3 is set by (MolAl+MolMetal):Molp equal to about 1:2.5 to about 1:4, MolAl is the amount of substance of the aluminum element, MolMetal is the amount of substance of the M element, and Molp is the amount of substance of the phosphorous element. A lithium ion battery includes the electrode composite material.

Abstract: An electrode of a lithium ion battery includes a current collector, an electrode material layer disposed on a top surface of the current collector, and a protective film located on a top surface of the electrode material layer. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3, M represents at least one chemical element of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta, and a valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: A method for making a modified current collector of a lithium ion battery is provided. In the method, the modifier and a metal plate are provided. The modifier is a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. The modifier is coated on a surface of the metal plate to form a coating layer. The coated metal plate is heat treated to transform the coating layer into a protective film formed on the surface of the metal plate.

Abstract: A modified current collector includes a metal plate and a protective film disposed on a surface of the metal plate. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3. M represents at least one chemical element selected from the group consisting of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta. A valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: An electrode of a lithium ion battery includes a current collector, an electrode material layer disposed on a top surface of the current collector, and a protective film located on a top surface of the electrode material layer. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3, M represents at least one chemical element selected from the group consisting of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta, and a valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: An electrode composite material includes an individual electrode active material particle and a protective film coated on a surface of the particle. A composition of the protective film is AlxMyPO4, AlxMy(PO3)3, or a combination thereof. M represents at least one of Cr, Zn, Mg, Zr, Mo, V, Nb, or Ta. A valence of M is represented by k, in which 0<x<1, 0<y<1, and 3x+ky=3. In addition, a molar ratio of an aluminum element, an M element, and a phosphorous element in AlxMyPO4 or AlxMy(PO3)3 is set by (MolAl+MolMetal):Molp equal to about 1:2.5 to about 1:4, MolAl is the amount of substance of the aluminum element, MolMetal is the amount of substance of the M element, and Molp is the amount of substance of the phosphorous element. A lithium ion battery includes the electrode composite material.

Abstract: An electrode of a lithium ion battery includes a current collector, an electrode material layer disposed on a top surface of the current collector, and a protective film located on a top surface of the electrode material layer. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3, M represents at least one chemical element of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta, and a valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: An electrode composite material includes an individual electrode active material particle and a protective film coated on a surface of the particle. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3, M represents at least one chemical element selected from the group consisting of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta, and a valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: A method for making a separator of a lithium ion battery is provided. In the method, a modifier, and a porous membrane are provided. The modifier is a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. The modifier is coated on a surface of the porous membrane to form a coating layer. The coated porous membrane is dried to form a modifier layer disposed on the surface of the porous membrane.

Abstract: A modifier of a lithium ion battery includes a clear solution fabricated from a phosphorous source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. A molar ratio of the trivalent aluminum source, the metallic oxide, and the phosphorous source is set by (MolAl+MolMetal):Molp=about 1:2.5 to about 1:4. MolAl is the amount of substance of an aluminum element in the trivalent aluminum source, MolMetal is the amount of substance of a metallic element in the metallic oxide, and Molp is the amount of substance of a phosphorous element in the phosphorous source.

Abstract: A separator of a battery includes a porous membrane and a modifier layer disposed on a surface of the porous membrane, wherein a material of the modifier layer is a dried mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent.

Abstract: A modifier of a lithium ion battery includes a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent. A method for making the modifier of the lithium ion battery. In the method, a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide are provided. The phosphorus source, the trivalent aluminum source, and the metallic oxide are mixed in a liquid phase solvent to form a clear solution.

Abstract: A modifier of a lithium ion battery includes a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent. A method for making the modifier of the lithium ion battery. In the method, a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide are provided. The phosphorus source, the trivalent aluminum source, and the metallic oxide are mixed in a liquid phase solvent to form a clear solution.

Abstract: A modified current collector includes a metal plate and a protective film disposed on a surface of the metal plate. A composition of the protective film is at least one of AlxMyPO4 and AlxMy(PO3)3. M represents at least one chemical element selected from the group consisting of Cr, Zn, Mg, Zr, Mo, V, Nb, and Ta. A valence of M is represented by k, wherein 0<x<1, 0<y<1, and 3x+ky=3.

Abstract: A separator of a battery includes a porous membrane and a modifier layer disposed on a surface of the porous membrane, wherein a material of the modifier layer is a dried mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent.