A hard carbon material prepared by mixing biomass and organic solid waste plastic
Hard carbon materials were prepared by mixing biomass with PET plastic. By utilizing the oxygen doping effect of PET, the problem of insufficient capacity and stability of biomass hard carbon materials in sodium-ion batteries was solved, and a sodium-ion battery anode material with high capacity and excellent cycle performance was achieved.
CN122144708APending Publication Date: 2026-06-05EAST CHINA UNIV OF SCI & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- EAST CHINA UNIV OF SCI & TECH
- Filing Date
- 2026-04-21
- Publication Date
- 2026-06-05
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Figure CN122144708A_ABST
Abstract
The present application relates to the technical field of electrochemical energy storage materials, in particular to a hard carbon material prepared by mixing biomass and organic solid waste plastic. The present application provides a hard carbon material prepared by mixing biomass and organic solid waste plastic. In the process, waste PET plastic is used as an oxygen donor to control oxygen doping of biomass pre-carbonization product in the co-carbonization process, and abundant oxygen-containing crosslinking groups are introduced in situ to prepare a hard carbon material with expanded carbon layer spacing and excellent sodium storage performance, solving the problems of single biomass hard carbon, such as few sodium storage sites, unstable structure and environmental pollution caused by waste PET.
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