Titanium dioxide modified electrolytic manganese dioxide, preparation method and aqueous zinc battery
Titanium dioxide-modified electrolytic manganese dioxide was prepared by electrolyzing manganese sulfate solution and performing in-situ hydrolysis without added acid. This solved the problems of process complexity and corrosion in the existing technology, improved the electrochemical performance, and made it suitable for aqueous zinc batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies require the addition of acid during the preparation of electrolytic manganese dioxide, which increases process complexity and causes corrosion problems. Furthermore, existing titanium-doped materials are mainly used in supercapacitors rather than aqueous zinc-manganese dioxide batteries, and there is a lack of a unified preparation process to improve interfacial bonding and electrochemical performance.
Titanium dioxide-modified electrolytic manganese dioxide was prepared by electrolyzing manganese sulfate solution without added acid and then hydrolyzing the titanium precursor solution in situ to deposit titanium species on the surface and inside the structure of electrolytic manganese dioxide, forming a stable interfacial composite structure.
The electrolysis system is simplified, reagent consumption is reduced, costs are lowered, and the specific capacity and cycle performance of titanium dioxide-modified electrolytic manganese dioxide are improved, making it suitable for aqueous zinc batteries.
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