Apple Inc.

Martin Bettge

Christopher S Johnson

Hongli Dai

Huiming Wu

John David Carter

Xiaoping Wang

Chi-Kai Lin

Dapeng Wang

Hakim H Iddir

Akshaya K Padhi

Arthur Jeremy Kropf

Yan Li

Anh D Vu

Zhenzhen Yang

Yanjie Cui

James A Gilbert

Michael J Erickson

Ana Kircova

YoungHo Shin

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

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

Growing community of inventors

Downers Grove, IL, United States of America

Martin Bettge