Negative carbon type plant power generation landscape lamp
By collecting bioelectricity through proton exchange membranes and carbon felt electrodes, combined with energy storage batteries and intelligent charge and discharge control, the problem of low power output and insufficient landscape aesthetic value of existing plant power generation devices has been solved, realizing a stable power supply that is carbon-negative and environmentally friendly, as well as beautiful and practical landscape lighting.
Patent Information
- Application Number
- CN202511312647.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-01-16
AI Technical Summary
Existing plant-based power generation devices have low power output, simple structure, and lack aesthetic value, making them difficult to integrate with urban landscapes. Furthermore, traditional power supply methods pose carbon emission problems.
Design a carbon-negative plant-powered landscape light that combines a proton exchange membrane and carbon felt electrodes to collect bioelectricity, utilizes plant photosynthesis to fix carbon and generate electricity, combines energy storage batteries and intelligent charge and discharge control to achieve stable power output, and enhances the aesthetic appeal of the landscape through a reflector.
It achieves a stable power supply with negative carbon emissions and environmental protection, enhances the aesthetic value of the landscape, reduces operation and maintenance costs, and integrates well with the urban landscape.
Smart Images

Figure CN121346196A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of landscape lighting equipment technology, specifically relating to a negative carbon plant-generated landscape light that utilizes plant photosynthesis and metabolism to generate bioelectricity, and combines membrane technology for efficient collection and conversion. Background Technology
[0002] Landscape lighting, as an important decorative and lighting facility in urban greening, parks, courtyards, and tourist attractions, traditionally relies on power grid cabling or small fossil fuel generators for its power supply. Power grid cabling is not only limited by the site environment and disrupts the integrity of the landscape, but also has the problem of high energy consumption; fossil fuel power generation generates carbon emissions, which contradicts the concept of low-carbon and environmental protection.
[0003] Plant-based power generation is an emerging bioelectrochemical technology. Its principle involves utilizing microorganisms in the soil surrounding plant roots to decompose organic matter produced by photosynthesis, generating electrons in the process. These electrons are then collected through electrodes to form an electric current. This technology offers advantages such as continuous power generation (day and night), environmental friendliness, and ecological compatibility. However, most existing plant-based power generation devices are limited to experimental research or simple demonstration applications, suffering from low power output, simple structure, lack of aesthetic value, and difficulty in integrating with urban landscapes, thus failing to achieve large-scale practical application.
[0004] Therefore, there is an urgent need for an integrated device that combines plant power generation technology, high-efficiency energy harvesting and storage technology with landscape art design, which can provide stable landscape lighting while achieving negative carbon emissions, enhancing environmental benefits and aesthetic value. Summary of the Invention
[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a physically powered landscape light that is structurally sound, generates stable electricity, is aesthetically pleasing and practical, and truly achieves negative carbon emissions. It can be widely used in various outdoor settings such as parks, courtyards, squares, and pedestrian streets. This is achieved through the following technical solutions: A negative carbon plant-based power generation landscape light includes a landscape light base, a planting trough mounted on the base, and a light housing mounted on the base and located on one side of the planting trough. Plants capable of generating bioelectricity are planted inside the planting trough. A proton exchange membrane is provided at the bottom of the planting trough, contacting the plant roots, and a carbon felt electrode is provided on one side of the planting trough, also contacting the plant roots. The proton exchange membrane and the carbon felt electrode constitute a power generation membrane assembly. The power generation membrane assembly is connected to a charging controller via wires. The charging controller is electrically connected to an energy storage battery. The energy storage battery is electrically connected to an LED light mounted on the top of the light housing via a discharge controller.
[0006] Furthermore, inclined reflectors are installed around the base of the landscape light. The tilt angle of the reflectors can be adjusted according to the height of the LED light, so that the downward-facing light is refracted upward at night, forming a unique light and shadow effect and enhancing the aesthetics of the landscape.
[0007] Furthermore, a row of drainage holes is provided on one side wall of the planting trough to remove excess water, prevent root rot in plants, and maintain a suitable water level and microbial environment in the planting trough.
[0008] Furthermore, the LED light located at the top of the lamp housing is covered with a lampshade made of high-transmittance PC material, which serves to protect the LED light and enhance its appearance.
[0009] Furthermore, the lamp housing contains wires that connect the discharge controller and the LED lamp to transmit power.
[0010] This invention directly utilizes plant photosynthesis to fix carbon and generate electricity. The entire process requires no fossil fuels and produces zero carbon emissions, truly achieving negative carbon emissions and environmental protection. The combination of proton exchange membranes and carbon felt electrodes improves the efficiency of bioelectricity collection. Coupled with energy storage batteries and intelligent charge / discharge control, stable voltage output is achieved, ensuring stable and reliable nighttime lighting and realizing energy self-sufficiency. The power generation system is integrated into the landscape lighting structure, enhancing the overall aesthetics of the environment. Furthermore, plant replacement is convenient, eliminating the need to disassemble the core power generation components and reducing long-term maintenance costs. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front structure of the present invention; In the diagram, 1-base, 2-planting trough, 3-plant, 4-carbon felt electrode, 5-lamp housing, 6-discharge controller, 7-energy storage battery, 8-charging controller, 9-reflector, 10-proton exchange membrane, 11-drainage hole, 12-lamp cover, 13-LED light, 14-wire. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] like Figure 1-2As shown, this invention discloses a carbon-negative plant-based power generation landscape light, mainly composed of a base 1, a planting trough 2, plants 3, carbon felt electrodes 4, a lamp body shell 5, a discharge controller 6, an energy storage battery 7, a charging controller 8, a reflector 9, a proton exchange membrane 10, a drainage hole 11, a lampshade 12, LED lights 13, and wires 14. The base 1 serves as the supporting foundation for the entire device and can be made of metal materials, such as aluminum alloy or stainless steel, and is fixed to the ground with anchor bolts. The planting trough 2 is set on the base 1, and its material can be corrosion-resistant fiberglass or ceramic composite material, designed in the shape of imitation stone, imitation wood, or other artistic forms. The planting trough 2 is filled with a suitable growth substrate and planted with highly bioelectrically active plants 3, such as moss, ferns, or other wetland or aquatic plants.
[0014] A proton exchange membrane 10 is laid at the bottom of the planting trough 2, and carbon felt electrodes 4 are embedded in the side walls. Both are in full contact with the roots of the plant 3, forming a power generation unit. Several drainage holes 11 are also opened on the side walls of the planting trough 2 to regulate the water level. The electrical energy generated by the power generation unit is connected to a charging controller 8 installed inside the lamp housing 5 or on the base 1 via wires. The charging controller 8 rectifies and stabilizes the unstable bioelectricity before charging the high-performance lithium-ion energy storage battery 7. The discharge controller 6 controls the energy storage battery 7 to discharge to the LED lamp 13 according to a preset time period (such as 6 pm to 10 pm).
[0015] The lamp housing 5 is fixed to the base 1, and an LED light 13 and a high-transmittance PC lampshade 12 are installed on its top. Wires 14 are laid inside the lamp housing 5 to connect various electrical components. Multiple adjustable reflectors 9 are installed around the top of the landscape light base 1 to reflect and refract the LED light, enhancing the lighting effect and landscape aesthetics.
[0016] The working principle of this invention is as follows: During the day, plants fix carbon dioxide and produce organic matter through photosynthesis, which is secreted into the soil through their roots. Microorganisms around the roots decompose this organic matter, producing electrons and protons. Electrons are captured by carbon felt electrodes in contact with them, forming an electric current that flows through an external circuit to the other electrode connected to the proton exchange membrane. Protons migrate through the proton exchange membrane, completing the entire circuit cycle and continuously generating bioelectricity. The generated electrical energy is processed (regulated and rectified) by a charging controller and stored in an energy storage battery. At night, a discharge controller automatically starts according to a preset program (e.g., 18:00 to 22:00), supplying the energy from the energy storage battery to LED lights for illumination. The LED lights shine downwards, not only providing illumination but also supplementing the plant's photosynthesis, further promoting carbon fixation and power generation. Simultaneously, a reflector on the base reflects some of the light, creating a beautiful landscape lighting effect.
[0017] During installation, the base 1 is first fixed, then plants 3 are planted in the planting trough 2 and nutrient solution is added. The system then starts working automatically. Routine maintenance only requires periodically checking the plant growth and water level; plants can be easily replaced or the lampshade cleaned when necessary.
Claims
1. A carbon-negative plant power landscape lamp, comprising a base (1), a planting groove (2) arranged on the base (1), and a lamp body shell (5) arranged on the base (1) and located on one side of the planting groove (2), characterized in that, The planting groove (2) is internally planted with plants (3) capable of generating bioelectricity; the bottom of the planting groove (2) is provided with a proton exchange membrane (10) in contact with the roots of the plants, and a carbon felt electrode (4) in contact with the root system of the plants is arranged on one side of the planting groove (2); the proton exchange membrane (10) and the carbon felt electrode (4) constitute a power generation membrane assembly, the power generation membrane assembly is connected with a charging controller (8) through a wire, the charging controller (8) is electrically connected with an energy storage battery (7), and the energy storage battery (7) is electrically connected with an LED lamp (13) arranged on the top of a lamp body shell (5) through a discharging controller (6).
2. A negative carbon plant power generating landscape light as claimed in claim 1 wherein, An inclined reflector (9) is arranged around the top of the base (1).
3. A negative carbon plant power generating landscape light as claimed in claim 1 wherein, A row of drainage holes (11) is arranged on the side wall of one side of the planting groove (2).
4. The negative carbon plant power landscape light of claim 1, wherein, The LED lamp (13) arranged on the top of the lamp body shell (5) is externally provided with a lampshade (12).
5. A carbon-negative landscape light powered by plants as claimed in claim 1, wherein, The lamp body shell (5) is internally provided with an electric wire (14), and the electric wire (14) is connected with the discharging controller (6) and the LED lamp (13).
6. A negative carbon plant power generating landscape light as claimed in claim 2, wherein, The inclination angle of the reflector (9) can be adjusted according to the height of the LED lamp (13).