Feeds

Nanotubes, sulfur expand battery storage

Blast-proof battery boffins back

Security for virtualized datacentres

The group that last year gave the world the unexplodable lithium battery is back, this time using a combination of nanotubes, sulfur and an electrolyte additive to achieve what they say is a tenfold improvement in capacity.

In particular, the group, led by Stanford University’s Yi Cui, believes the sulfur-coated carbon nanotube cathode is a key step in improving battery life – fast becoming a bottleneck for a host of technologies, from smartphones and tablets all the way up to electric cars and green power, all of which suffer from energy density constraints.

“I strongly believe that’s a promising future choice to make better batteries,” Cui told Futurity.

Last year, the group was in the news at the other end of the battery. They added silicon nanowires to the anode of the battery, creating what they say is a safer battery while at the same time increasing capacity and using cheaper and less toxic materials than are used in lithium-ion batteries.

Lithium sulfur-based batteries are a focus for research because they offer high charge density. However, using the material in a conventional battery design only yields a device of short life. Futurity explains that this is because the sulfur is exposed to and reacts with the electrolyte.

The carbon nanotubes protect the sulfur from this, making lithium-sulfur batteries a better candidate for commercialization. The research is published in Nano Letters. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
MEN: For pity's sake SLEEP with LOTS of WOMEN - and avoid Prostate Cancer
And, um, don't sleep with other men. If that's what worries you
Voyager 1 now EIGHTEEN LIGHT HOURS from home
Almost 20 BEEELION kilometres from Sol
Jim Beam me up, Scotty! WHISKY from SPAAACE returns to Earth
They're insured for $1m, before you thirsty folks make plans
ROGUE SAIL BOAT blocks SPACE STATION PODULE blastoff
Er, we think our ISS launch beats your fishing expedition
Comet Siding Spring revealed as flying molehill
Hiding from this space pimple isn't going to do humanity's reputation any good
BAE points electromagnetic projectile at US Army
Railguns for 'Future fighting vehicle'
OK Google, do I have CANCER?
Company talks up pill that would spot developing tumors
LONG ARM of the SAUR: Brachially gifted dino bone conundrum solved
Deinocheirus mirificus was a bit of a knuckle dragger
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
The hidden costs of self-signed SSL certificates
Exploring the true TCO for self-signed SSL certificates, including a side-by-side comparison of a self-signed architecture versus working with a third-party SSL vendor.