Oxides for high energy cathode materials
US-10280092-B2 · May 7, 2019 · US
Cathode with disordered rocksalt material and method of forming the cathode
US12126010B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12126010-B2 |
| Application number | US-202318522554-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2023 |
| Priority date | Aug 18, 2020 |
| Publication date | Oct 22, 2024 |
| Grant date | Oct 22, 2024 |
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Abstract
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A method for forming a cathode includes milling a suspension of precursors via a micromedia mill to form a mixture of primary particles in the suspension. The precursors include one or more metal compounds. The method includes spray drying the suspension after the milling to form secondary particles. The secondary particles are agglomerations of the primary particles. The method also includes annealing the secondary particles to form a disordered rocksalt powder.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode for a rechargeable battery, the cathode comprising: a disordered rocksalt powder characterized by secondary particles having an average particle size no less than 1 micrometer and no greater than 20 micrometers, each of the secondary particles being an agglomeration of primary particles, the primary particles having an average particle size no greater than 400 nanometers. 2. The cathode of claim 1 , wherein the disordered rocksalt powder is represented by formula (i): Li x N y M z O 2−a F a (i) where 1.0<x<1.65; 0.01<y<0.55; 0.1<z<1; 0≤a<0.5; N is one of Ti, Ta, Zr, W, Nb, or Mo; and M is one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Zr, Y, Mo, Ru, Rh or Sb. 3. The cathode of claim 2 , wherein a>0. 4. The cathode of claim 1 , wherein the secondary particles are spherical in shape. 5. The cathode of claim 1 , wherein the secondary particles have a carbon coating. 6. The cathode of claim 1 , wherein the average particle size of the secondary particles is no greater than 10 micrometers.
Assignees
Inventors
Classifications
- C01G45/22Primary
Compounds containing manganese, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
Positive electrodes · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Construction or manufacture · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
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- What does patent US12126010B2 cover?
- A method for forming a cathode includes milling a suspension of precursors via a micromedia mill to form a mixture of primary particles in the suspension. The precursors include one or more metal compounds. The method includes spray drying the suspension after the milling to form secondary particles. The secondary particles are agglomerations of the primary particles. The method also includes a…
- Who is the assignee on this patent?
- Wildcat discovery technologies inc
- What technology area does this patent fall under?
- Primary CPC classification C01G45/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 22 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).