Feeds

Nanotubes, sulfur expand battery storage

Blast-proof battery boffins back

Remote control for virtualized desktops

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. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
FORGET the CLIMATE: FATTIES are a MUCH BIGGER problem - study
Fat guy? Drink or smoke? You're worse than a TERRORIST
Rosetta probot drilling DENIED: Philae has its 'LEG in the AIR'
NOT best position for scientific fulfillment
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
HUMAN DNA 'will be FOUND ON MOON' – rockin' boffin Brian Cox
Crowdfund plan to stimulate Blighty's space programme
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
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?
Managing SSL certificates with ease
The lack of operational efficiencies and compliance pitfalls associated with poor SSL certificate management, and how the right SSL certificate management tool can help.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.