IP Library › Granted Patent US 12,206,100
Granted Patent B2
US 12,206,100 · App. 16/999,265 · Granted Jan 21, 2025

Mono-grain cathode materials

Inventors: Hongli Dai (Los Altos, CA); Huiming Wu (San Jose, CA); Dapeng Wang (Cupertino, CA); John David Carter (Bolingbrook, IL); Yan Li (Westmont, IL); Anh D. Vu (Lemont, IL); Xiaoping Wang (Naperville, IL); Christopher S. Johnson (Naperville, IL); Rui Xu (Lemont, IL); Zhenzhen Yang (Westmont, IL); Yanjie Cui (Arlington Heights, IL); James A. Gilbert (Bolingbrook, IL); Arthur Jeremy Kropf (Westmont, IL); Hakim H. Iddir (Hoffman Estates, IL)
Assignee: Apple Inc.
H01M4/505H01M4/0435H01M4/0471H01M4/525H01M2004/028
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Quick Facts
Patent No.
US 12,206,100
App. No.
16/999,265
Granted
Jan 21, 2025
Kind
B2
Abstract

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.

Claims (15)

1. A cathode material comprising a plurality of particles, the particles comprising a compound represented by Formula:

Li α (Co 1-x-y-z Mn x Me z Al y )O δ ,

wherein 0.95<α<1.05, x<1.00, 0<y≤0.04, 0<z≤0.050, and δ=2,

wherein Me is Ni,

wherein the particles have a particle size distribution with a D50 ranging from 10 μm to 20 μm;

wherein the particles have D10 less than 8 μm; and

wherein the D99 of the particles ranges from 25 μm to 35 μm.

2. The cathode material of claim 1 , wherein Me further comprises at least one element selected from B, Na, Mg, Ti, Ca, V, Cr, Fe, Cu, Zn, Sc, Y, Ga, Zr, La, Ru, and Mo.

3. The cathode material of claim 1 , wherein the D50 ranges from 12 μm to 17 μm.

4. The cathode material of claim 1 , wherein the D90 of the particles ranges from 20 μm to 30 μm.

5. A cathode comprising the cathode material of claim 1 .

6. A battery comprising:

a cathode of claim 5 ;

a separator; and

an anode.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2020
From: DAI, HONGLI; WU, HUIMING; WANG, DAPENG
To: APPLE INC.
Reel/Frame 053647/0510 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2020
From: CARTER, JOHN D.; LI, YAN; VU, ANH D.; WANG, XIAOPING; JOHNSON, CHRISTOPHER S.; XU, RUI; YANG, ZHENZHEN; CUI, YANJIE; GILBERT, JAMES A.; KROPF, ARTHUR JEREMY; IDDIR, HAKIM H.
To: UCHICAGO ARGONNE, LLC
Reel/Frame 053647/0620 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2020
From: UCHICAGO ARGONNE, LLC
To: APPLE INC.
Reel/Frame 053647/0723 →
Continuity (2)
Provisional Application 62889927 · Aug 21, 2019
Related Publication 20210057739A1 · Feb 25, 2021
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