A method for dynamically calcining a manganese-based lithium ion sieve precursor
By employing a dynamic calcination method, using equipment such as a rotary tube furnace, and introducing oxygen-containing gas, the problems of low consistency and purity of manganese-based lithium ion sieve precursors were solved, achieving the preparation of high-purity, highly consistent manganese-based lithium ion sieve precursors suitable for industrial production.
CN122144790APending Publication Date: 2026-06-05TIBET JIUWU NEW MATERIAL TECH CO LTD +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TIBET JIUWU NEW MATERIAL TECH CO LTD
- Filing Date
- 2024-12-29
- Publication Date
- 2026-06-05
AI Technical Summary
Technical Problem
Traditional static calcination methods result in low consistency and purity of manganese-based lithium ion sieve precursors, which cannot meet the requirements of industrial applications.
Method used
The calcination process employs dynamic flipping and the introduction of oxygen-containing gas, using equipment such as rotary tube furnaces and suspension furnaces to ensure uniform heating of the powder and full contact with oxygen, thus preparing manganese-based lithium ion sieve precursors.
Benefits of technology
The crystallinity and purity of manganese-based lithium ion sieve precursors were improved, achieving highly consistent preparation that is suitable for industrial applications.
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Figure CN122144790A_ABST
Abstract
The application discloses a method for dynamically calcining a manganese lithium ion sieve precursor, which comprises the following steps: when lithium manganese oxide LiMnO2 is calcined to prepare a manganese lithium ion sieve precursor, the lithium manganese oxide LiMnO2 is turned over, and oxygen-containing gas is introduced; after calcination and annealing treatment, the manganese lithium ion sieve precursor is obtained. The method can solve the problems of uneven heating of the powder, insufficient contact with oxygen and the like in the preparation of the manganese lithium ion sieve precursor by a traditional method, the powder is continuously turned over during calcination, and oxygen is introduced, so that the lithium manganese oxide LiMnO2 is fully contacted with oxygen, is uniformly heated, and fully reacts, and the preparation of the manganese lithium ion sieve precursor with high consistency and high purity can be realized.
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