ECC concrete based on carbon black doping and preparation method and application thereof

By constructing a triboelectric nanogenerator using carbon black-doped ECC concrete and a flexible PDMS counter electrode, the problems of high maintenance costs and environmental pollution associated with traditional power supply methods are solved. This achieves efficient and stable energy harvesting and power supply, and improves the mechanical properties of conductive materials.

CN121292876APending Publication Date: 2026-01-09SHENZHEN UNIV
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Patent Information

Application Number
CN202511641311.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Traditional power supply methods for traffic monitoring devices have high maintenance costs, poor installation flexibility, and high environmental pollution risks. Existing triboelectric nanogenerators have low road surface conversion efficiency, insufficient long-term performance, and are difficult to maintain.

Method used

Carbon black-doped ECC concrete is used as the electrode material for a triboelectric nanogenerator. It is combined with a flexible PDMS counter electrode and a deformable support shell. By compressing the deformable shell with a car tire, the two electrodes are brought into contact and separated to generate a potential difference, thus achieving energy harvesting.

Benefits of technology

This approach improves both the mechanical and electrical properties of conductive materials, reduces costs, enables stable power supply, and solves problems related to power supply maintenance difficulties and environmental pollution.

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Abstract

The invention relates to the technical field of conductive materials, and discloses ECC concrete based on carbon black doping and a preparation method and application thereof.The preparation method includes the following steps that cement, slag, quartz sand, silica fume and limestone powder are subjected to dry mixing to obtain a dry material; dispersing carbon black and a dispersing agent in water to obtain carbon black dispersion liquid; and mixing the dry material, the carbon black dispersion liquid, a polycarboxylate superplasticizer and polyethylene fibers to obtain the carbon black doped concrete. The conductivity of the ECC concrete is improved through the carbon black, the ECC concrete is applied to the field of friction nano-generators, potential difference can be formed through extrusion of an automobile in the using process, and therefore current is output to supply power to traffic lights, monitoring equipment and the like.
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