High voltage cathode compositions for lithium-ion batteries

Patent metadata

Field	Value
Publication number	US-9601771-B2
Application number	US-201615223786-A
Country	US
Kind code	B2
Filing date	Jul 29, 2016
Priority date	Jul 20, 2012
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A lithium transition metal oxide composition. The composition has the formula Li a [Li b Ni c Mn d Co e ]O 2 , where a≧0.9, b≧0, c>0, d>0, e>0, b+c+d+e=1, 1.05≦c/d≦1.4, 0.05≦e≦0.30, 0.9≦(a+b)/M≦1.06, and M=c+d+e. The composition has an O3 type structure.

First claim

The invention claimed is:

1. A lithium transition metal oxide composition having the formula Li a [Li b Ni c Mn d Co e ]O 2 , where a≧0.9, b≧0, c>0, d>0, e>0, b+c+d+e=1, 1.05≦c/d≦1.4, 0.05≦e≦0.30, 1.03≦(a+b)/M≦1.06, and M=c+d+e;
wherein the composition has an O3 type structure.

2. A lithium transition metal oxide composition according to claim 1 , where 1.1≦c/d≦1.38 and 0.08≦e≦0.28.

3. A lithium transition metal oxide composition according to claim 2 , where 1.2≦c/d≦1.35 and 0.10≦e≦0.25.

4. A lithium transition metal oxide composition according to claim 1 , wherein the composition is in the form of a single phase.

5. A lithium transition metal oxide composition according to claim 1 , wherein the composition delivers composited volumetric energy higher than 2200 Wh/L within 2.5-4.7V vs. Li/Li+ at 30° C. using 1C (C=200 mAh/g) rate discharge.

Assignees

• 3M Innovative Properties Co

Inventors

• Lu Zhonghua
• Eberman Kevin W

Classifications

• H01M4/505 Primary

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

• C01G53/50

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

• Y02P70/54

  Cross-Sectional Technologies · mapped topic

• H01M4/525 Primary

  of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title

• C01G53/56

  of the type (MnO3)2-, e.g. Li2(NixMn1-x)O3 or Li2(MyNixMn1-x-y)O3 · CPC title