High-voltage organic azo positive electrode material and preparation method thereof

By preparing high-voltage organic azo cathode materials, the problems of high cost and environmental pollution of inorganic lithium-ion batteries are solved, the battery energy density and cycle life are improved, and it is suitable for a variety of ion batteries.

CN120657124APending Publication Date: 2025-09-16AVIC XIAN AIRCRAFT IND GRP CO LTD
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Patent Information

Application Number
CN202510749224.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Existing inorganic lithium-ion battery materials are expensive, cause serious environmental pollution and have poor cycle life. In particular, the cobalt element in high-nickel ternary materials is expensive, and the inorganic material structure is easily damaged during the charging and discharging process.

Method used

Cyanuric chloride and hydrazine containing strong electron-withdrawing groups are used as raw materials to generate hydrazine compounds under the action of acid binding agents, which are then oxidized with oxidants to prepare azo compounds. The azo compounds are then mixed with conductive agents and adhesives to form high-voltage organic azo cathode materials.

Benefits of technology

It improves the energy density of lithium-ion batteries, extends the cycle life, and reduces the risk of environmental pollution. It is suitable for lithium-ion, sodium-ion, zinc-ion and hydrogen-ion batteries.

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Abstract

The invention discloses a high-voltage organic azo positive electrode material and a preparation method thereof. The preparation method comprises the following steps: S1, mixing a cyanuric chloride raw material, a hydrazine-based raw material, an acid-binding agent and a first reaction solvent according to a preset proportion, and stirring and heating to prepare a hydrazine-based compound; the hydrazino compound comprises a hydrazino functional group-NH-NH-; s2, mixing a hydrazino compound, an oxidizing agent and a second reaction solvent according to a preset proportion, and stirring to prepare an azo compound; the azo compound comprises an azo functional group-N = N-; and S3, carrying out vacuum drying on the azo compound, and adding a conductive agent and an adhesive to prepare the high-voltage organic azo positive electrode material. Due to the existence of the strong electron withdrawing group, the organic azo positive electrode material shows extremely high discharge voltage, and the problems that an existing inorganic electrode material is high in cost, serious in environmental pollution, relatively short in cycle life and the like are solved.
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