High voltage, high volumetric energy density li-ion battery using advanced cathode materials

Patent metadata

Field	Value
Publication number	US-10615413-B2
Application number	US-201414206654-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 12, 2013
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

The disclosed embodiments provide a battery cell. The battery cell includes an anode containing an anode current collector and an anode active material disposed over the anode current collector. The battery cell also includes a cathode containing a cathode current collector and a cathode active material disposed over the cathode current collector. The cathode active material has a composition represented by xLi2MO3·(1-x)LiCoyM′(1-y)O2.

First claim

What is claimed is:

1. A cathode active material composition having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.

2. A cathode for a battery cell, comprising:
a cathode current collector;
a cathode active material disposed over the cathode current collector, having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.

3. A battery cell, comprising:
an anode, comprising:
an anode current collector; and
an anode active material disposed over the anode current collector; and

a cathode, comprising:
a cathode current collector;
a cathode active material disposed over the cathode current collector, having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.

4. The battery cell of claim 3 , wherein the composition is formed using at least one of:
a mixed-metal hydrated hydroxide precursor made using a solution co-precipitation method; and
a lithium addition solid-state reaction.

5. The battery cell of claim 3 , wherein the cathode has an amount of lithium that can be reversibly extracted from the cathode active material greater than 60%, and a reversible capacity greater than 165 mAh/g.

6. The battery cell of claim 3 , wherein the cathode has an amount of lithium that can be reversibly extracted from the cathode active material greater than 75%, and a reversible capacity greater than 200 mAh/g.

7. A portable electronic device, comprising:
a set of components powered by a battery pack; and
the battery pack, comprising:
a battery cell, comprising:
an anode, comprising:
an anode current collector; and
an anode active material disposed over the anode current collector; and

a cathode, comprising:
cathode current collector;
a cathode active material disposed over the cathode current collector, comprising a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;

wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.

Assignees

• Apple Inc

Inventors

• Dai Hongli
• Johnson Christopher S
• Wu Huiming

Classifications

• 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

• H01M4/505

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

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M4/131

  Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title