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With the increasing demand for electric vehicles and new energy storage, the industry is looking forward to better battery technology, among which flow batteries have great prospects for large-scale energy storage systems. The Imperial College of the UK said on the 26th that its scholars have received EU funding to develop a new generation of flow battery technology.
Dr. Song Qilei from Imperial College of Technology received a project grant of 1.5 million euros (about 1.6 million US dollars) from the European Research Council Research Startup Fund. His team will collaborate with Edinburgh University, Cambridge University, and institutions in Europe and China to develop this battery technology.
Song Qilei told Xinhua News Agency reporters: "Traditional lithium-ion batteries encapsulate electrolyte and electrode materials. The thermal stability of organic electrolytes is limited, which is prone to deflagration and limited safety. In contrast, flow batteries Decouple the electrolyte material that can be charged and discharged from the stack unit, so that the positive and negative electrolytes can be stored separately in the container, and then sent to the battery through the pump to achieve charge and discharge, high safety, long-term storage of energy, very suitable Large-scale energy storage system applications. "
At present, the most common flow battery is the all-vanadium flow battery. This battery uses commercial ion exchange membranes and vanadium materials, but the cost of active materials and separators is very high, which limits the large-scale flow battery. use. Song Qilei showed reporters the key component of the flow battery, the diaphragm, in the laboratory of Imperial College of Technology. The performance of this material significantly restricts the flow battery performance and production costs.
He said: "We hope to develop new nanoporous membrane materials and low-cost electrolyte materials, fundamentally improve the ion conductivity and selectivity of the membrane through molecular design, combine with nano-processing technology to prepare nano-membranes, and integrate new electrolyte materials. Develop next-generation new, cheap, environmentally friendly, high energy density flow battery technology. "
According to the team, the new membrane material technology can be used not only in batteries, but also in the energy and environmental protection fields such as sewage treatment and gas purification. (Reporter Zhang Jiawei)
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