Apple Inc.

UChicago Argonne, LLC

Hakim H Iddir

Christopher S Johnson

Hongli Dai

Huiming Wu

John David Carter

Xiaoping Wang

Yanjie Cui

Arthur Jeremy Kropf

Yan Li

Zhenzhen Yang

Anh D Vu

Dapeng Wang

James A Gilbert

Arturo Gutierrez

Victor A Maroni

Chi-Kai Lin

Chen Liao

Ilya A Shkrob

Daniel Abraham

Michael J Erickson

Cameron Peebles

Fiona Claire Strobridge

Juan Garcia

Rui Xu

Jeffrey W Elam

Anil U Mane

Jason R Croy

Eungje Lee

Devika Choudhury

Martin Bettge

Jihyeon Gim

Fulya Dogan-Key

A method for coating of lithium ion electrode materials via atomic layer deposition. The coated materials may be integrated in part as a dopant in the electrode itself via heat treatment forming a doped lithium electrode.

Modification of lithium ion electrode materials via atomic layer deposition techniques

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

This invention relates to an electrolyte composition for a lithium ion battery comprising a lithium salt in a non-aqueous solvent containing an additive comprising a compound of formula RSiOP(O)F; wherein each R independently is a hydrocarbyl group; and n is 0 or 1; and wherein the additive is substantially free from (RSiO)P(O)and (RSiO)P(O)F. Electrochemical cells and batteries also are described.

Additives for high voltage 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.

Surface stabilized cathode material for lithium ion batteries and synthesizing method of the same

This invention relates to a method for preparing an electrochemical cell comprising the sequential steps of preparing a solution of a lithium salt in an non-aqueous solvent containing an additive compound, and maintaining the solution at a temperature in the range of about 20 to about 30&#xb0; C. for about 5 to 10 days to form an aged electrolyte; assembling an electrochemical cell from an anode, a cathode, and the aged electrolyte; and electrochemically subjecting the electrochemical cell to formation cycling. The additive compound comprises one or more compounds selected from the group consisting of: (RSiO)B, (RSiO)XY, (RSiO)P, (R'O)PO, (RSi)X&#x2032;, RSiOS(O)R&#x2032;; (RSi)OC(&#x2550;O)R&#x2032;; wherein each R and R&#x2032; independently is a hydrocarbyl group; X is P or B; Y is O or S; X is Ti or Al. Electrochemical cells and batteries also are described.

Growing community of inventors

Hoffman Estates, IL, United States of America

Hakim H Iddir