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Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
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release time:2024-05-27 Hits: Popular:AG11 battery
New materials developed in the United States are expected to be used to manufacture 3.7v 2200mah 18650 lithium battery
American researchers have designed a new material that is expected to be used to manufacture large-capacity lithium-ion batteries with stable performance, extending the battery life of smartphones, electric vehicles, etc. to more than twice the current time.
Northwestern University recently issued a press release stating that the new material is lithium magnesium oxide mixed with chromium and vanadium elements. When used as the cathode of lithium-ion batteries, the battery capacity can be greatly increased, and the performance is stable and will not degrade rapidly.
Lithium-ion batteries usually use a compound of lithium, oxygen and a transition metal as the positive electrode. The transition metal is responsible for storing and releasing electrical energy, and its properties determine the battery capacity. Currently, cobalt is commonly used. Previous studies have found that replacing cobalt with magnesium can increase capacity and reduce costs, but battery performance degrades too quickly and drops significantly after two rounds of charging and discharging.
A Northwestern University research team published a paper in the American journal Science Advances saying that they established a structural model of the lithium magnesium oxide material as detailed as a single atom, analyzed the charge and discharge process, and found that the oxygen in it will also participate in storing electrical energy, thus increasing the capacity. larger.
The researchers then tried the scheme of incorporating different elements into lithium magnesium oxide, calculated the energy storage effects of various mixtures, and found that incorporating chromium and vanadium could achieve stable performance while maintaining a large battery capacity. Next they will test the new material's actual performance in the laboratory.
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