Posts Tagged: 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 »

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 move another step closer to Li-air batteries

A team from Delft University in the Netherlands and the University of Waterloo in Canada has used operando X-ray diffraction to show that oxidation of electrochemically generated lithium peroxide (Li2O2) in high-energy-density Li-air batteries occurs in two stages, but in only one step for commercial (crystalline) Li2O2. In a paper published in the Journal of… Read more »

US/Chinese/Korean research team details the challenges of Li-air battery research

Lithium-air batteries are widely expected to be the next big thing – more than 300 research papers have been published on the topic in the past 3 years. Li-air has the potential to deliver far more energy density than current lithium-ion technology. A new review in the ACS journal Chemical Reviews sums up the current… 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 »

MIT team uses virus to make a better lithium-oxygen battery

Researchers around the world have taken up the quest for a better battery, and lithium-air is one of the many promising routes to the Grail. This week, a team from MIT described an improved way to make nanowires for a lithium-air battery electrode using – of all things – viruses. “Biologically enhanced cathode design for… 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 »

KAIST discovers method to extend Li-air battery life

Researchers from the Korea Advanced Institute of Science and Technology (KAIST) have discovered a means to extend the lifetime of lithium-air (Li-air) batteries, a technology that offers the promise of higher energy densities than those achievable with conventional lithium-ion batteries. They report their findings in the February issue of the journal ChemSusChem. Li-air batteries are… Read more »