Path: EDN Asia >> News Centre >> Power/Smart Energy >> Unimaterial battery revolutionises solid-state energy storage
Power/Smart Energy Share print

Unimaterial battery revolutionises solid-state energy storage

07 May 2015

Share this page with your friends

Novel battery from UMD

UMD engineers made a battery using only one material by sprinkling carbon (red) into each side of a new material (blue) that forms the electrolyte and both electrodes at the ends of the battery.

Though the battery is extremely easy to make, a powder compressed in a plastic and steel cylinder, it is still at the proof-of-concept stage, Han said. "We are still testing how many times it can change and discharge electricity to see if it is a real candidate for manufacturing."

The reason the new battery is revolutionary is because it solves the problem of what happens at the interface between the electrolyte and the electrode. A prolonged interaction between the two can result in a wall of useless material that keeps the batteries from working well. The wall increases the resistance at this solid-electrolyte interface. This in turn increases the heat in the battery, rendering the battery even less useful.

Because Han and Wang's battery is all one material, energy can flow through without a lot of resistance. This means that the battery easily charges up and discharges smoothly.

Sulphide-based compounds are not particularly environmentally friendly materials, Han said. "So next we will try to use oxides, which do not degrade into a poisonous gas," instead. The battery's solid powder is, however, safer than the liquid-based batteries.

The research was done as part of the Nanostructures for Electrical Energy Storage (NEES) project from the Department of Energy, and is also funded by the National Science Foundation.

The work was published on April 29, 2015, in the journal Advanced Materials.

 First Page Previous Page 1 • 2

Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.

Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming

News | Products | Design Features | Regional Roundup | Tech Impact