Active material for a positive electrode of a battery cell, positive electrode, and battery cell

Patent metadata

Field	Value
Publication number	US-10833319-B2
Application number	US-201615760470-A
Country	US
Kind code	B2
Filing date	Sep 5, 2016
Priority date	Sep 16, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A positive active material for a positive electrode of a battery cell which includes a first component containing a compound of general formula: Li 2-z Na z M 1 1-y M 2 y O 3 , where M 1 and M 2 are different from one another and stand for transition metal ions, 0<y<1, and 0≤z<2, with the condition that the compound is essentially free of manganese ions. Moreover, a positive electrode of a battery cell which includes the positive material, and a battery cell which includes at least one positive electrode, are also described.

First claim

What is claimed is:

1. A positive active material for a positive electrode of a battery cell, the positive active material including a first component containing a compound of general formula:
Li 2-z Na z Ni 1-y Cr y O 3 ;
wherein
0<y<1, and
0≤z≤2,
with a condition that the compound is essentially free of manganese ions.

2. The positive active material as recited in claim 1 , wherein the compound is Li 2 Ni 0.5 Cr 0.5 O 3 .

3. The positive active material as recited in claim 1 , wherein 0.1≤z≤1.

4. The positive active material as recited in claim 1 , wherein the positive active material includes a second component containing LiM 3 O 2 , M 3 being a transition metal selected from the elements nickel (Ni), cobalt (Co), or manganese (Mn).

Assignees

• Bosch Gmbh Robert

Inventors

• Marusczyk Anika
• Eckl Thomas

Classifications

• H01M10/0525

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

• H01M4/62

  Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title

• H01M4/525

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

• H01M4/485

  of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title

• H01M4/36

  Selection of substances as active materials, active masses, active liquids · CPC title