Method of manufacturing lithium nickel complex oxide, lithium nickel complex oxide manufactured thereby, and cathode active material including the same

Patent metadata

Field	Value
Publication number	US-10629906-B2
Application number	US-201815969389-A
Country	US
Kind code	B2
Filing date	May 2, 2018
Priority date	Aug 29, 2013
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

Provided is a lithium nickel complex oxide represented by Chemical Formula 1:

Li w Ni II x1 Ni III x2 Mn y Co z F d O 2-d   <Chemical Formula 1>
where x1+x2+y+z=1, 0.4≤x1+x2≤0.9, 0<y≤0.6 and 0<z≤0.6, 0.9≤w≤1.3, and 0<d≤0.3.

First claim

What is claimed is:

1. A lithium nickel complex oxide represented by Chemical Formula 1:
Li w Ni II x1 Ni III x2 Mn y Co z F d O 2-d   <Chemical Formula 1>

where x1+x2+y+z=1,
0.4≤x1+x2≤0.9,
0<y≤0.6 and 0<z≤0.6,
0.9≤w≤1.3, and 0<d≤0.3,
wherein x1/x2 satisfies 0.4≤x1/x2≤0.48.

2. A cathode active material comprising the lithium nickel complex oxide of claim 1 .

3. A cathode comprising the cathode active material of claim 2 .

4. A lithium secondary battery comprising:
a cathode;
an anode; and
a separator disposed between the anode and the cathode,
wherein the cathode is the cathode of claim 3 .

Assignees

• Lg Chemical Ltd

Inventors

• Kim Ji Hye
• Park Sung Bin
• Jung Wang Mo
• Oh Sang Seung
• Park Byung Chun

Classifications

• H01M4/505 Primary

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

• H01M10/052

  Li-accumulators · CPC title

• C01P2002/72

  by d-values or two theta-values, e.g. as X-ray diagram · CPC title

• C01P2004/64

  Nanometer sized, i.e. from 1-100 nanometer · CPC title

• C01G53/50

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