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The National University of Singapore Dr. Xie Xianning and his research team developed a high-performance energy storage membrane.
According to "Daily Science" report, the National Institute of Nanotechnology of National University of Singapore has recently developed a new high-performance energy storage film. This new product not only has a small size and large energy storage, but also has a low cost and superior environmental performance, which has caused widespread concern in the industry. The famous scientific journal "Nature" introduced it. It is reported that this kind of high-efficiency energy storage membrane is converted from plastic into a battery. A 1 kg plastic garbage bag can be converted into a 1 kg battery.
Low cost, good environmental performance
Due to climate change and energy shortages, people are increasingly clamoring for storage technologies and management. Existing rechargeable batteries and supercapacitors have complicated configuration problems. At present, it is still difficult to reduce costs and realize large-scale production of these products. In addition, people are increasingly concerned about the impact of traditional energy consumption on the environment, which further promotes the development of renewable energy. Dr. Xie Xianning of National University of Singapore said: “Aware of the increasingly urgent issues of environment and new energy development, my team and I have developed a high-performance energy storage membrane. The energy storage membrane not only has low energy storage costs but is also environmentally friendly. According to the Daily Technology Network, Xie Xianning discovered in an accidental experiment that after chemical processing, plastics can store electricity and conduct electricity. It is reported that from the time of dissolving plastics to adding chemical substances to energy storage membranes, the entire process takes only one and a half hours. As long as the energy storage film is sandwiched between two sheets of conductive metal, the electric energy can be stored and released after charging. The storage capacity of the energy storage film per square centimeter is about 0.2 farads, which is 200 times that of a standard capacitor.
The cost of the new energy storage technology is significantly lower than that of the existing technology. The current cost of the liquid electrolyte storage technology is 7 US dollars per farad, and the cost of each farad energy storage membrane is only 0.62 US dollars, and the cost is less than the cost of the existing energy storage battery. One-tenth, that is 1 US dollars energy storage film can be exchanged for 10 to 20 kWh of energy consumption, and 1 US dollar lithium battery can only be exchanged for 2.5 kWh of energy consumption. In addition, the energy storage film can be charged at least 5000 times, which is 5 times that of the rechargeable battery.
Xie Xianning said that compared with rechargeable batteries and super capacitors, the use of energy storage film is wider. In addition, the performance of energy storage membranes exceeds that of rechargeable batteries, such as lithium batteries, lead-acid batteries, and supercapacitors. It is reported that the research has been funded by the Singapore-MIT Scientific Research Alliance and the Singapore International Research Foundation. Dr. Xie Xianning and his research team began research on energy storage membranes last year, which took a year and a half. At present, the project has successfully applied for US patents.
The future is expected to be applied to new energy
At present, many foreign media are positive about this technology. Computer chip network, said the technology will bring about a revolution in the energy storage industry. Daily Technology Network said that this will bring new hope for renewable energy storage. Some analysts believe that the new energy storage film can provide immediate power storage and release for hybrid vehicles, which will effectively improve energy efficiency and reduce carbon emissions. In the future, hybrid vehicles are expected to use electric energy from energy storage membrane technology, which can effectively extend the life of automotive batteries and reduce costs.
In addition, energy storage membranes can also be used in solar energy and wind turbines to store and manage electricity. Because solar energy and wind power are unstable, energy storage is needed. By storing energy in the energy storage film, intermittent problems are solved, because excess power can be stored in the energy storage film in time and reserved for use.
At present, the research team has tested the specific properties of energy storage membranes. The research team is looking for opportunities to cooperate with Wind Capital. There are already many wind investments that have expressed interest in this. Xie Xianning said: "With the invention of energy storage film, energy storage technology will be easier, the cost will be lower, and is expected to achieve large-scale production. Energy storage film environmental performance is superior, it is expected to change the current state of energy storage."
List of existing energy storage technologies
At present, the main technologies in the energy storage industry include chemical energy storage, electromagnetic energy storage, and physical energy storage. Chemical energy storage mainly includes lead-acid batteries, flow batteries, sodium-sulfur batteries, and lithium batteries. The lead-acid battery is an electrode made mainly of lead and its oxide, and the electrolyte is a battery of sulfuric acid solution. In a charged state of a lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the discharge state, the main components of the positive and negative electrodes are lead sulfate. The flow battery is a new type of large-scale electrochemical energy storage device. Vanadium salt solution is used as the all-vanadium flow battery for both positive and negative electrodes. This new type of energy storage and storage device can be used not only as a solar energy and wind power generation process. The matched energy storage devices can also be used for peak regulation of the power grid, improving the stability of the power grid and ensuring the safety of the power grid. Lithium batteries are a type of batteries that use lithium metal or lithium alloy as a negative electrode material and use a nonaqueous electrolyte solution. Lithium batteries are widely used in energy storage power systems such as hydraulic power, fire power, wind power, and solar power stations, as well as in electric bicycles and electric vehicles.
Electromagnetic energy storage mainly refers to supercapacitor energy storage. Supercapacitors are a new type of energy storage device between ordinary capacitors and secondary batteries. Super-capacitors combine high energy density, high power density, long life, and other characteristics. They have high reliability, fast cycle charging and discharging, and long-time discharge. They are widely used as backup power supplies for microcomputers, solar chargers, and alarm devices. Household appliances, camera flashes, and aircraft ignition devices.
Physical energy storage mainly refers to pumped energy storage, flywheel energy storage, and compressed air energy storage. Physical energy storage has the advantages of large scale and low operating costs, but it requires special geographical conditions and sites, the limitations of the construction are large, and the one-time investment costs are high, and it is not suitable for off-grid power generation systems with lower power. Compared to chemical energy storage, physical energy storage is more environmentally friendly, greener, and uses natural resources. (Liu Yang)
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