Google Play icon

Sodium-ion hybrid capacitor as next-generation battery

Share
Posted April 9, 2015
This news or article is intended for readers with certain scientific or professional knowledge in the field.

Li-ion (lithium-ion) batteries, which power most portable electronics today, include precious elements such as lithium and cobalt. As a potential alternative to Li-ion batteries, Na-ion (sodium-ion) batteries have attracted much attention because of the abundance and low-cost of uniformly-distributed sodium.

Composed of titanium and carbon, nanosheet MXene Ti2CTx operates as a high-performance negative electrode material. Using this material, a sodium-ion hybrid battery was demonstrated. Image credit: Yamada-Okubo Lab

Composed of titanium and carbon, nanosheet MXene Ti2CTx operates as a high-performance negative electrode material. Using this material, a sodium-ion hybrid battery was demonstrated. Image credit: Yamada-Okubo Lab

However, in order to realize a sodium-ion battery, a pair of compounds capable of intercalation (absorbing and releasing) of sodium ions is required for each of the negative and positive electrodes. In particular, development of a high-performance negative electrode is indispensable.

The research group of Professor Atsuo Yamada and Associate Professor Masashi Okubo at the University of Tokyo, Graduate School of Engineering, Department of Chemical System Engineering, in collaboration with the research group of Professor Isamu Moriguchi at Nagasaki University Graduate School of Engineering, has clarified that a nanosheet compound comprising titanium and carbon is capable of sodium-ion intercalation. A prototype full cell with this nanosheet compound as a negative electrode in combination with an existing positive electrode material exhibited high-charge/discharge-rate capability, high capacity, and long cycle life, all of which are prerequisites for a next-generation battery technology.

Source: University of Tokyo

Featured news from related categories:

Technology Org App
Google Play icon
85,377 science & technology articles

Most Popular Articles

  1. New treatment may reverse celiac disease (October 22, 2019)
  2. "Helical Engine" Proposed by NASA Engineer could Reach 99% the Speed of Light. But could it, really? (October 17, 2019)
  3. New Class of Painkillers Offers all the Benefits of Opioids, Minus the Side Effects and Addictiveness (October 16, 2019)
  4. The World's Energy Storage Powerhouse (November 1, 2019)
  5. Plastic waste may be headed for the microwave (October 18, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email