Inspenet, February 21, 2023<\/p>\n\n
Scientists at Japan’s National Institute of Materials Science (NIMS) and SoftBank Corp. developed a lithium-air battery with twice the energy capacity by weight of current lithium-ion models, adding new momentum to the race to commercialize a next-generation power source. Their goal is to put the battery to practical use in 5 to 10 years.<\/p>\n\n
Lithium-air batteries use lithium for the negative electrode and oxygen in air for the positive electrode to create a chemical reaction that produces energy. The technology makes it possible to greatly reduce the size of batteries and make them lighter than conventional batteries with the same capacity.<\/p>\n\n
The prototype battery’s weight energy density, which indicates performance, reached 500 Wh\/kg, or about twice that of current lithium-ion batteries.<\/p>\n\n
The research team reviewed more than 100 research articles from around the world to confirm that their lithium-air battery had the highest weight energy density.<\/p>\n\n
However, the prototype battery reached its useful life when it was charged and discharged about 10 times. Each of the processes took 10 hours.<\/p>\n\n
\u201cWe achieved world-class power density with the lithium-air battery,\u201d said Shoichi Matsuda, a principal investigator at NIMS based in Tsukuba, Ibaraki Prefecture. “It marks a big step toward its practical use.”<\/p>\n\n
However, he acknowledged that the team needs to improve the materials it uses.<\/p>\n\n
The technology is considered the “ultimate secondary battery” as it offers the ability to store several times the capacity of lithium-ion batteries currently in use. <\/p>\n\n
This development has drawn attention in global efforts to develop next-generation models alongside next-generation solid-state batteries and lithium-ion batteries for use in electric vehicles, drones, and other devices. The research was published in the scientific journal Materials Horizons at: https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2022\/MH\/D1MH01546J<\/a> .<\/p>\n\n Source and photo<\/strong> : https:\/\/www.asahi.com\/ajw\/articles\/14507837<\/a><\/p>\n\n