New medium for cooling Ricardo develops new battery

by:CTECHi     2021-08-27
According to foreign media reports, as the automotive industry continues to develop towards electrification, it is urgent to improve the safety of power lithium-ion batteries. It should be understood that 'temperature' has a great influence on power lithium-ion batteries. If the actual operating temperature of the power lithium-ion battery cell is lower than the lower limit of the suitable operating temperature, its performance and efficiency will continue to decay, and the aging speed will be accelerated. If the operating temperature exceeds the upper limit, it may cause battery heating effects, resulting in battery circuit failure or even fire. Power lithium-ion batteries also have potential safety hazards when charging. When a vehicle is charged in a fast manner, compared with the conventional slow charging, the heat generation (heat energy) of the battery cell will be increased to three times, which will lead to battery aging and performance degradation in the long run. At present, electric vehicle battery packs tend to be air-cooled. If the cooling plate technology is applied, water, glycol or refrigerants are used. However, there are restrictions on the conditions of use of such thermal management systems, which limit the charging rate or the number of quick charges that can be used per day. Therefore, if the current battery cell technology is used, then the optimization of the thermal energy of the battery pack and battery operation becomes very important. A few days ago, industrial and specialty materials manufacturer Mu0026IMaterials announced an i-CoBat project. The project uses Mu0026IMaterials' biodegradable medium coolant-MIVOLT, which aims to test the concept of immersed cooling battery packs. Mu0026IMaterials has long been committed to technical work in the field of advanced materials and electrical insulation. Its medium coolant is the company's core technology, and it has accumulated nearly 40 years of technology-related experience. This innovative technology will enhance power output, extend battery life, increase battery charging rate, reduce production costs, and help solve core problems such as vehicle mileage anxiety. James O'Brien, head of Mu0026IMaterials product group, said: “We are fortunate to cooperate with well-known companies in the industry, including Ricardo (a global strategic engineering and environmental consulting company) that has integrated its professional battery packs, battery management system design, and thermal management technology. Brought to this project, at the same time, the Warwick University School of Manufacturing Engineering (WMG) will send its research team to participate in all processes from Ru0026D to commercialization.” said Neville Jackson, Ricardo’s Chief Technology and Creative Officer: “The power of electric vehicles Core elements such as performance, fast charging time, and price have become key considerations for persuading users to buy electric vehicles. The new thermal management technology will be the key to urging consumers to choose electric vehicles, which will help consumers ease or eliminate cruising range. Anxiety, increase the recognition of electric vehicles in the minds of consumers.' David Greenwood, professor of advanced propulsion systems in the School of Manufacturing Engineering, University of Warwick, added: 'We strive to explore the maximum capacity of the battery, extend its durability and increase the charging rate as much as possible, thermal management Become a very critical part. This is not only a matter of ensuring battery cooling efficiency, but also ensuring that the temperature of the battery can be optimized under any conditions of use.'
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