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Carbon-Cement Supercapacitor | Cities | Envisioning
  1. Home
  2. Research
  3. Cities
  4. Carbon-Cement Supercapacitor

Carbon-Cement Supercapacitor

This energy storage solution addresses issues related to renewable energy integration and urban infrastructure resilience. It combines cement, water, and carbon black to create a supercapacitor capable of storing and discharging electrical energy efficiently. It offers a cost-effective, scalable solution to the intermittent nature of renewable energy sources like solar and wind power, ensuring a stable energy supply despite fluctuations in production. By embedding energy storage capabilities into concrete, carbon-cement supercapacitors can be integrated into various urban infrastructures, such as building foundations, roads, and public spaces.

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Horizons
Horizons
Carbon-Cement Supercapacitor

Energy-storing concrete structures for distributed urban power.

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BACK TO CITIESVIEW INTERACTIVE VERSION
LraSdVa2SxO6f6elFo3w1w
LraSdVa2SxO6f6elFo3w1w
Cement Recycling

This solution addresses the significant environmental challenge posed by the cement production industry's high carbon emissions. The innovative method utilises electric arc furnaces (EAFs), typically used in steel recycling, to recycle used cement. By substituting lime flux with used cement in the process, the technology produces recycled cement, significantly reducing the carbon footprint of both steel and cement production. This process not only conserves natural resources by reusing materials but also cuts down on waste sent to landfills, supporting a circular economy in construction.

Technology Readiness Level
6/9
Diffusion of Innovation
2/5
Technology Life Cycle
2/4
LraSdVa2SxO6f6elFo3w1w
LraSdVa2SxO6f6elFo3w1w
Energy Harvesting

This solution addresses the problem of reliance on finite energy sources like batteries and external power supplies. The aim is to capture ambient energy from sources such as solar radiation, thermal gradients, vibrations, and radiofrequency waves, converting them into usable electrical power. Doing so enables devices to operate autonomously, often for their entire lifespan, without the need for external power or frequent battery replacements. By integrating energy harvesting devices into urban infrastructure, cities can power smart sensors, public lighting, and transportation systems, enhancing sustainability and resilience.

Technology Readiness Level
6/9
Diffusion of Innovation
2/5
Technology Life Cycle
2/4
LraSdVa2SxO6f6elFo3w1w
LraSdVa2SxO6f6elFo3w1w
Carbon Capture, Utilisation and Storage

Aimed at addressing the critical problems of greenhouse gas emissions and air pollution, this technology captures carbon dioxide (CO₂) emissions from industrial sources and power plants, preventing them from entering the atmosphere. Once captured, the CO₂ can either be utilised in various industrial processes, such as producing synthetic fuels and construction materials or stored underground in geological formations. CCUS plays a pivotal role in reducing urban air pollution, thereby improving public health by mitigating respiratory and cardiovascular diseases caused by poor air quality.

Technology Readiness Level
7/9
Diffusion of Innovation
2/5
Technology Life Cycle
2/4
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Au6IBOOiQBKXrd5UVZfpGg
Circular Battery

This energy storage solution addresses critical issues related to energy waste, resource scarcity, and environmental degradation. Unlike traditional batteries that often end up in landfills, circular batteries are engineered for reuse, refurbishment, and recycling, creating a closed-loop lifecycle that significantly reduces electronic waste and the need for raw materials. These batteries store electricity from various sources, including renewable energy, and upon reaching the end of their lifecycle, they are disassembled, and valuable components are recovered and reused.

Technology Readiness Level
7/9
Diffusion of Innovation
2/5
Technology Life Cycle
1/4
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Fo_8Rp1ESF6lBoRbIg0suw
Integrated Autonomous Energy Grid

To address the inefficiencies and sustainability challenges of traditional urban energy systems, this technology integrates renewable energy sources such as solar and wind power with existing energy infrastructures, managed by sophisticated AI and machine learning algorithms. These systems monitor, predict, and optimise energy flows in real-time, ensuring a stable and efficient energy supply. The IAEG aims to reduce greenhouse gas emissions, enhance energy resilience, and improve energy equity by providing reliable power distribution, even in disaster-prone areas.

Technology Readiness Level
7/9
Diffusion of Innovation
3/5
Technology Life Cycle
2/4
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H6ZGfOAGRYiyQnO0zdvKVA
Programmable Smart Pavement

This solution addresses pressing urban challenges such as flooding, traffic congestion, road deterioration, and inefficient maintenance by embedding sensors, actuators, and responsive materials directly into the pavement. These elements allow the surface to monitor and react to environmental conditions, adjusting permeability during storms to reduce flooding, changing friction in icy conditions to improve safety, and collecting data on load, vibration, and temperature for predictive maintenance.

Technology Readiness Level
3/9
Diffusion of Innovation
1/5
Technology Life Cycle
1/4

This technology addresses a critical problem in renewable energy storage: ensuring a stable and efficient energy supply despite the intermittent nature of sources like solar and wind power. Carbon-cement supercapacitors are an ingenious blend of cement, water, and carbon black. When combined, these materials create a supercapacitor with a high internal surface area, allowing for significant energy storage capacity. The process involves the water forming a network of branching openings within the cement as it cures, with carbon black migrating into these spaces to form conductive structures. Once soaked in an electrolyte, these structures enable the material to function as a supercapacitor, storing and discharging energy efficiently.

The implications for urban infrastructure are profound. Integrating carbon-cement supercapacitors into the foundations of buildings or roadways can transform these structures into massive energy storage units. For instance, a concrete foundation of a house could store a full day's worth of energy, supporting the household's energy needs independently. Additionally, roads embedded with this technology could potentially recharge electric vehicles as they drive, promoting greener transportation solutions.

The scalability and cost-effectiveness of carbon-cement supercapacitors make them particularly appealing. Using common and inexpensive materials like cement and carbon black, which have been employed for millennia, ensures that the production costs remain low while the energy storage capacity is substantial. Moreover, these supercapacitors offer high-rate charge and discharge capabilities, essential for managing the dynamic demands of modern urban environments.

Technology Readiness Level
4/9Lab Environment
Diffusion of Innovation
1/5Innovators
Technology Life Cycle
1/4Emergence
Category
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