20240021809. POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY simplified abstract (GM GLOBAL TECHNOLOGY OPERATIONS LLC)
POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY
Organization Name
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor(s)
POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240021809 titled 'POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY
Simplified Explanation
The present disclosure is about a positive electroactive material for an electrochemical cell that cycles lithium ions. The material consists of nickel-rich particles with a heterogeneous structure, including a core and a shell that partially coats the core. The core is made of a nickel-cobalt-manganese material, while the shell is made of a nickel-cobalt-aluminum material.
- The positive electroactive material is designed for use in electrochemical cells that cycle lithium ions.
- It is composed of nickel-rich particles with a heterogeneous structure.
- Each particle has a core made of nickel-cobalt-manganese material and a shell made of nickel-cobalt-aluminum material.
- The core and shell together form a base structure, which is partially coated by a buffer layer.
- The composition of the materials is represented by specific formulas and conditions.
Potential applications of this technology:
- Lithium-ion batteries for electric vehicles and portable electronics.
- Energy storage systems for renewable energy sources.
- Power backup systems for critical infrastructure.
Problems solved by this technology:
- Enhanced cycling stability and capacity retention in lithium-ion batteries.
- Improved energy density and power performance.
- Reduction in the use of expensive and scarce materials.
Benefits of this technology:
- Longer-lasting and more efficient lithium-ion batteries.
- Increased energy storage capacity.
- Cost-effective and sustainable battery technology.
Original Abstract Submitted
the present disclosure provides a positive electroactive material for an electrochemical cell that cycles lithium ions. the positive electroactive material includes a nickel-rich material including a plurality of solid-state particles. each solid-state particle has a heterogeneous structure that includes a core and a shell that at least partially coats the core. the core includes a nickel-cobalt-manganese material, and the shell includes a nickel-cobalt-aluminum material. when the nickel-rich material is represented by linicomnalo, the nickel-cobalt-manganese material is represented by linicomno, and the nickel-cobalt-aluminum material is represented by linicoalo, where (i) 1-x-y-z>0.5, (ii) a+b=1, (iii) zx″+bx″=x, and (iv) 1-x″-(y/a)>1-x″-(z/b). in certain variations, the core and the shell define a base structure, and the heterogeneous structure further includes a buffer layer that at least partially coats the base structure.
