A deep-sea nanogenerator and its preparation method, and a water flow energy harvesting device
By using a titanium dioxide-doped polyvinylidene fluoride film and optimizing the mechanical structure in a triboelectric nanogenerator, the problem of power supply stability in deep-sea environments was solved, and stable power supply under high pressure and complex flow velocity conditions was achieved.
CN119543694BActive Publication Date: 2026-05-26SUN YAT SEN UNIV +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUN YAT SEN UNIV
- Filing Date
- 2024-11-19
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing triboelectric nanogenerators struggle to provide stable power in deep-sea environments, especially under high pressure and low flow conditions, making it difficult to effectively harvest water flow energy.
Method used
A titanium dioxide-doped polyvinylidene fluoride film is used as the negative friction layer, combined with a single oil layer design, and the mechanical structure of the nanogenerator is optimized to adapt to the deep-sea environment through a combination of a guide plate, a triangular blunt body and a frustum base.
Benefits of technology
In the high-pressure and complex flow environments of the deep sea, nanogenerators can provide stable power, expanding the application areas of seabed sensors and providing clean energy support.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119543694B_ABST
Abstract
This invention discloses a deep-sea nanogenerator, its fabrication method, and a water flow energy harvesting device. The nanogenerator has a symmetrical structure, comprising, from top to bottom, a sequentially stacked encapsulation film layer, an electrode layer, a positive friction film layer, an oil layer, a negative friction film layer, another electrode layer, and an encapsulation film layer. The electrode layer is connected to a wire. The negative friction film layer is a titanium dioxide-doped polyvinylidene fluoride (PVDF) film. This invention uses a titanium dioxide-doped PVDF film as the negative friction layer to improve the mechanical properties of the nanogenerator, adapting it to the high-pressure working environment of the deep sea. It employs a single oil-air layer and reduces the oil content in the oil layer to improve the performance output of the nanogenerator under deep-sea pressure. This water flow energy harvesting device can still provide stable power supply in high-pressure deep-sea environments with low water flow velocities; it can also operate normally under hydrostatic pressure of 20 MPa.
Need to check novelty before this filing date? Find Prior Art