Preparation of nanostructured mixed lithium zirconium oxide by spray pyrolysis
The lithium-zirconium mixed oxide is produced by flame spray co-condensing method, and the specific precursor materials and solvent systems are used to solve the problems of large particles of lithium-zirconium mixed oxide in the prior art and the small surface area, achieving the production of high-performance lithium-zirconium mixed oxide.
JP7653418B2Active Publication Date: 2025-03-28EVONIK OPERATIONS GMBH
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Patent Information
- Application Number
- JP2022516039
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-09-13
- Filing Date
- 2020-09-10
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2040-09-10
AI Technical Summary
Technical Problem
In the prior art, when producing lithium-zirconium mixed oxides for lithium-ion batteries, the obtained particles are large in size, small in surface area and high in density, resulting in poor application effect in batteries.
Method used
The lithium-zirconium mixed oxide is produced by flame spray pyrolysis, using hydroxylated acids or hydroxy acids of lithium and zirconium as the precursor material, and a solvent mixture of alcohol and hydroxy acids containing a small amount of water is used as the solvent system.
Benefits of technology
The production of lithium-zirconium mixed oxides with small particle size, large surface area and low density is achieved, and its performance in lithium-ion batteries is improved, especially in solid electrolytes and electrode materials.
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Abstract
The present invention relates to a method for producing mixed oxides comprising lithium, zirconium and optionally at least one metal other than Li and Zr by flame spray pyrolysis, to the mixed oxides obtainable by this method and to their use in lithium-ion batteries.
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