Doping strategy for layered oxide electrode materials used in lithium-ion batteries
The present invention features a new way of doping layered cathode materials in lithium ion batteries. Using a “high entropy” doping strategy, more than four impurity elements can be introduced to the host materials. The present invention applies this high entropy doping strategy to a high nickel content layered oxide material and a lithium-manganese rich material. This new high entropy doping strategy allows the layered oxide materials used in the positive electrode of lithium ion battery to achieve high energy density, long life cycle and reduced reliance on the expensive and toxic cobalt, all of which are desired attributes for improving the performance of lithium ion batteries and reducing their cost.
- Research Organization:
- Univ. of California, Irvine, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0008444
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Number(s):
- 11,728,482
- Application Number:
- 17/508,540
- OSTI ID:
- 2222134
- Resource Relation:
- Patent File Date: 10/22/2021
- Country of Publication:
- United States
- Language:
- English
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