Results for: "lithium-air"

New catalyst advances lithium-air battery tech

Images from Field Emission Scanning Electron Microscope (FESEM) show catalyzed cells exhibiting longer cycle life than uncatalyzed cells under similar cycling conditions. Credit: Ates, M. N., et al. (2016) Lithium-air batteries, which have the highest theoretical energy density of all known battery devices, could revolutionize the energy economy. However, there are several technical challenges to… Read more »

Researchers use nanolithia to improve efficiency and longevity of lithium-air batteries

Lithium-air, or lithium-oxygen, has been touted as the ultimate battery technology, because its theoretical energy density is ten times that of current lithium-ion solutions. However, scientists have struggled to overcome major challenges with the technology. The batteries waste a lot of energy as heat, degrade relatively quickly, and often require extra components to pump oxygen… Read more »

New papers cast doubt on lithium-air breakthrough

Back in October, Cambridge scientists wowed the battery world with an announcement that they had demonstrated a highly efficient and long-lasting lithium-oxygen battery. Lithium-oxygen, or lithium-air, batteries have a theoretical energy density ten times that of lithium-ion solutions, but suffer from poor cycle life. In a paper published in the journal Science, Tao Liu and… Read more »

Researchers demonstrate aqueous lithium-air battery with energy density of 300 Wh/kg

Researchers at Mie University in Japan have developed a new protected lithium electrode for aqueous lithium-air batteries, which they presented at the annual meeting of the American Chemical Society. Lithium-air batteries are attracting a lot of attention, because of their potential to deliver much higher energy density than current Li-ion designs. Most recent studies have… Read more »

BMW: lithium-air batteries will double EV range within four to five years

Most experts agree that the eventual dominance of electric vehicles depends on a big breakthrough in battery technology. With researchers around the globe feverishly working on such an advance, there’s no question (except among the most rabid EV-haters) that it will happen. If you ask when the big break will occur, however, you’ll find a… Read more »

Wildcat sorts through the avalanche of new battery materials to find the best

As automakers and cell manufacturers begin to realize the complexity of benchmarking new battery materials, Wildcat Discovery Technology is using its high-speed R&D technology to help find clarity   If you follow battery technology news on a regular basis as we do, it’s easy to get overwhelmed by the volume of new announcements. There are… Read more »

Tesla’s chief motor engineer discusses the potential of next-generation motor technologies

Tesla spends a considerable amount of resources on basic research into EV systems – as well it should. EV technology is very young compared to that of ICE vehicles, so it’s safe to assume that, in a few short years, the aggregate of many incremental technology advances could lead to significantly better EVs. Of course,… Read more »

Li-ion batteries a bright spot in China’s economy

China’s overall economy is in the doldrums these days, but the lithium-ion battery industry is booming, according to market intelligence firm CCM. Nearly 80% of the world’s new investment in Li-ion batteries was in China in 2014. China’s electrochemical energy storage market recorded a compound annual growth rate of 110% from 2010 to 2015, about… Read more »

Cambridge scientists claim promising lithium-oxygen battery advancements

Cambridge scientists have developed a working demonstrator of a lithium-oxygen battery that is more than 90% efficient, and can be recharged more than 2,000 times. Lithium-oxygen, or lithium-air, has been touted as the ultimate battery technology, because its theoretical energy density is ten times that of lithium-ion solutions. In “Cycling Li-O2 Batteries via LiOH Formation… Read more »

Researchers add compounds to electrolyte to prevent dendrite growth

Those doggone dendrites are the bane of battery boffins working on otherwise promising lithium metal anodes. Now a group of researchers from SLAC, Stanford and MIT have discovered that adding lithium polysulfide and lithium nitrate to an ether-based electrolyte can prevent dendrite growth and minimize electrolyte decomposition. Professor Yi Cui, Professor Yet-Min Chiang (a co-founder… Read more »