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

US10597307B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Hongli Dai · Los Altos, US
• Dapeng Wang · Boise, US
• Huiming Wu · San Jose, US
• Fiona Claire Strobridge · San Francisco, US
• John David Carter · Bolingbrook, US
• Christopher S. Johnson · Naperville, US
• Xiaoping Wang · Naperville, US
• Hakim H. Iddir · Hoffman Estates, US
• Arthur Jeremy Kropf · Westmont, US
• Yan Li · 安丰镇, CN
• Victor A. Maroni · Naperville, US
• Anh D. Vu · Lemont, US
• Zhenzhen Yang · Westmont, US
• Arturo Gutierrez · Naperville, US
• Yanjie Cui · Arlington Heights, US

Key dates

• Filing date: Sep 20, 2017
• Grant date: Mar 24, 2020
• Expiry date: Feb 24, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A compound represented by LiαCo(1-x-2y)Mex(M1M2)yOδ, (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≤x≤0.3, 0<y≤0.4, 0.95≤α≤1.4, and 1.90≤δ≤2.10 is disclosed. Further, particles including such compounds are described.