Categories: Battery Tech

Scientists Deliver a Long Lasting Lithium-Oxygen Battery

by | Apr 9, 2020 | Battery Tech | 0 comments

Packing more energy into batteries is the key to delivering electric cars with longer range, smartphones that can last days—and cheaper electronic products all around and the Long Lasting Lithium- Oxygen Battery is here to the resuce.

The promise: Lithium-oxygen batteries represent one of the more promising paths toward that end. They could boost energy density by an order of magnitude above conventional lithium-ion batteries—in theory, at least. In a paper published today in Science, researchers at the University of Waterloo identified ways of addressing some of the major hurdles to converting that potential into commercial reality.

The challenge: A critical problem has been that as a lithium-oxygen battery discharges, oxygen is converted into superoxide and then lithium peroxide, reactive compounds that corrode the battery’s components over time. That, in turn, limits its recharging ability—and any real-world utility.

The advance: To get around the problem, researchers switched from a carbon cathode to one made of nickel oxide and supported by a stainless steel mesh. They also used molten salt for the electrolyte—the part of the battery that allows positively charged ions to move between the electrodes—and raised the battery’s operating temperature to 150 ˚C.

Those steps made it possible to achieve about three times the number of charging cycles as earlier lithium-oxygen efforts. The researchers also managed to increase the energy per unit of mass by more than 50 percent.

“This Long Lasting Lithium- Oxygen Battery discovery highlights immense opportunities …. to enable new battery technologies that can potentially rival lithium-ion batteries and other storage technologies,” MIT researchers write in an accompanying piece.

Wait for it …: But progress in the battery field is incredibly slow, requiring many years for promising advances in the lab to move into the commercial arena (see “Advance doubles the longevity of high-energy electric-car batteries.”) In particular, these batteries would still need to achieve far more life cycles to compete with products in the market today.

Linda Nazar, a coauthor of the study, stresses that the researchers haven’t provided a practical design for commercial production of lithium-oxygen batteries, which she says is more than 15 years away.

“We may be infinity from commercialization—as our Lithium- Oxygen Batterybattery is designed—but more importantly this concept will hopefully lead to new designs that may get us there,” she said in an e-mail.

Aug 23 2019

 

Latest News

Club De Rencontre Senior Gratuit En Indre Et Loire

Les seniors peuvent aussi retrouver rencontre gratuite (https://www.paparencontres.fr/la-rencontre-gratuite/) l'amour. Et si on truc la photo, on truc le reste pour essayer d'attraper un partenaire mieux qu'on ne l'est Les nouveaux types de sites de rencontres Trouver...

read more
The Future of EVs and EV Batteries

The Future of EVs and EV Batteries

Last week, looking at Future EV Batteries, we talked about some of the new concepts and innovative technologies at the 2019 2019 Geneva International Motor Show, and the votes are in. Automakers are focusing on alternative fuel technologies and even lifestyles, a new...

read more
Best Battery Operated Fans Reviewed

Best Battery Operated Fans Reviewed

The battery operated fan that is best for you really depends on your personal fan cooling requirements. Your fan options include: a larger fan that offers higher speeds and more power, a desk fan that is quiet and offers extended battery life, a hand fan that is more portable that fits in a pocket or purse, or a rechargeable fan that helps you save on batteries.

read more
Which Battery Lasts Longest Alkaline

Which Battery Lasts Longest Alkaline

Which Alkaline Battery Last The Longest? Alkaline Battery Test - Who Has The Best Alkaline Battery American National Standards Institute (ANSI) Learn more about ANSI here: http://www.ansi.org/ alkaline battery test[/caption] Rayovac® Brand Battery lasts as long as...

read more
Compare Batteries Questions

Compare Batteries Questions

Rechargeable Battery Life Questions and Answers Important Article Read: Which Alkaline Battery Is Best The Longest Duracell, Energizer or Rayovac?   Q: I just bought rechargeable the batteries. What do I need to do before first using them? First you must fully...

read more