High-energy cathode active materials for lithium-ion batteries

Patent metadata

Field	Value
Publication number	US-2023216036-A1
Application number	US-202318097997-A
Country	US
Kind code	A1
Filing date	Jan 17, 2023
Priority date	Jan 22, 2016
Publication date	Jul 6, 2023
Grant date	—

Abstract

Compounds that can be used as cathode active materials for lithium ion batteries are described. In some embodiments, the cathode active material includes the compound LixNiaMbNcO2 where M is selected from Mn, Ti, Zr, Ge, Sn, Te and a combination thereof; N is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and a combination thereof; 0.9<x<1.1; 0.7<a<1; 0<b<0.3; 0<c<0.3; and a+b+c=1. Other cathode active materials, precursors, and methods of manufacture are presented.

First claim

1 .- 4 . (canceled)

5 . A compound of Formula (III):
(1 −y )Li x Ni a M b N c O 2 ·y Li 2 MeO 3   (III)

wherein
M is selected from Mn, Ti, Zr, Ge, Sn, Te, and a combination thereof;
N is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and a combination thereof;
Me is selected from Mn, Ti, Ru, Zr, and a combination thereof;
0≤y≤0.3;
0.9<x<1.1;
0.7<a<1;
0<b<0.3;
0<c<0.3; and
a+b+c=1.

6 . The compound of claim 5 , wherein, 0.05<b<0.3 and 0.05<c<0.3.

7 . The compound of claim 5 , wherein Mis Mn, N is Mg, and Me is Mn.

8 . The compound of claim 5 , further comprising a coating disposed on a surface thereof and formed of a metal oxide, a metal fluoride, a metal phosphate, or a combination thereof.

9 . A cathode comprising a cathode current collector and a cathode active material comprising the compound according to claim 5 .

10 . A battery cell comprising:
an anode comprising an anode current collector and an anode active material disposed over the anode current collector; and the cathode according to claim 9 .

11 . A portable electronic device comprising:
a set of components powered by a battery pack, the battery pack comprising the battery cell according to claim 10 .

12 .- 20 . (canceled)

Assignees

• Apple Inc

Inventors

• Dai Hongli
• Wu Huiming

Classifications

• C01G53/82

  Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements · CPC title

• H01M4/364

  as mixtures · CPC title

• H01M4/366 Primary

  as layered products · CPC title

• C01G53/50

  of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 · CPC title

• H01M4/505

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title