Apple Inc.

Zhenzhen Yang

Christopher S Johnson

Hongli Dai

Huiming Wu

John David Carter

Xiaoping Wang

Hakim H Iddir

Arthur Jeremy Kropf

Yan Li

Anh D Vu

Yanjie Cui

Dapeng Wang

James A Gilbert

Victor A Maroni

Arturo Gutierrez

Chi-Kai Lin

Michael J Erickson

Fiona Claire Strobridge

Rui Xu

Martin Bettge

Fulya Dogan-Key

Methods of making such compounds, powders, and cathode active materials are described. The powders are formed of particles with specific properties: a particle size distribution with a D50 ranging from 10 μm to 20 μm, a D10 less than 8 μm, and a D99 of the particles ranges from 25 μm to 35 μm. The final compound is represented by the Formula Li(CoMnMeAl)O, wherein 0.95<α<1.05, x≤1.00, 0<y≤0.04, 0<z≤0.050, and δ≈2.

Mono-grain cathode materials

The disclosure provides a plurality of particles. Each particle may include a material comprising 0.95 to 1.30 mole fraction Li, at least 0.60 and less than 1.00 mole fraction Co, up to 10,000 ppm Al, 1.90 to 2.10 mole fraction O, and up to 0.30 mole fraction M, where M is at least one element selected from B, Na, Mg, P, Ti, Ca, V, Cr, Fe, Mn, Ni, Cu, Zn, Al, Sc, Y, Ga, Zr, Ru, Mo, La, Si, Nb, Ge, In, Sn, Sb, Te, and Ce. Each particle may also include a surface composition comprising a mixture of LiF and a metal fluoride. An amount of fluorine (F) is greater than 0 and less than or equal to 5000 ppm. The metal fluoride comprises a material selected from the group consisting of AlF, CaF, MgF, and LaF. The surface composition may also include a metal oxide comprising a material selected from the group consisting of TiO, MgO, LaO, CaO, and AlO. An amount of the metal oxide is greater than 0 and less than or equal to 20000 ppm.

Lithium fluoride-containing coatings for cathode active materials in Li-ion batteries

A cathode active material includes a plurality of cathode active compound particles and a coating disposed over each of the cathode active compound particles. The coating includes a lithium (Li)-ion conducting oxide containing lanthanum (La) and titanium (Ti).

Coatings for cathode active materials

Compounds, particles, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described. The particles have a particle size distribution with a D50 ranging from 10 μm to 20 μm.

Compounds, particles, and cathode active materials that include lithium, cobalt, manganese, nickel, aluminum, and other elements can be used in lithium ion batteries. The cathode active materials include compounds having the general Formula (I): compound represented by Formula (I): LiCOMeMnNiAlO, as well as Formula (II): LiCOMeMnNiAlO.

Cathode active materials for lithium ion batteries

Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.

Cathode active materials for lithium-ion batteries

Compounds, particles, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.

Aluminum-doped lithium cobalt manganese oxide batteries

Cathode active materials are provided. The cathode active material can include a plurality of cathode active compound particles. A coating is disposed over each of the cathode active compound particles. The coating can include at least one of ZrO, LaO, a mixture of AlOand ZrOor a mixture of AlOand LaO. The battery cells that include the cathode active material are also provided.

Oxide mixture and complex oxide coatings for cathode materials

A compound represented by LiCoMe(M1M2)O, (Formula (I)) wherein Me, is one or more of Li, Mg, Al, Ca, Ti, Zr, V, Cr, Mn, Fe, Ni, Cu, Zn, Ru and Sn, and wherein 0&#x2264;x&#x2264;0.3, 0&#x3c;y&#x2264;0.4, 0.95&#x2264;&#x3b1;&#x2264;1.4, and 1.90&#x2264;&#x3b4;&#x2264;2.10 is disclosed. Further, particles including such compounds are described.

Growing community of inventors

Lemont, IL, United States of America

Zhenzhen Yang