Feeds

Hitachi offers to double li-ion battery longevity

Twice as long before cell will no longer charge up

Secure remote control for conventional and virtual desktops

Hitachi has come up with what it claims is a compound capable of doubling the longevity of lithium-ion batteries - the rechargeable cells found in everything from e-cars to iPads.

Today's Li-ion batteries have limited lifespans thanks to the build up of crystal deposits within the electrolyte that hinder the movement of charge carrying lithium ions.

Acids in the electrolyte can also eat away the cathode, which is commonly made from lithium oxides of manganese, nickel, cobalt or iron.

It's the manganese cathodes that Hitachi has had its eye on: LiMn2O4. Its new approach: a layer of a "mixed oxide composite" on the cathode which, the company claims, provides "excellent acid resistance", reducing the loss of manganese from the cathode and thus slowing the battery's over-time capacity decline.

Hitachi Battery

Hitachi, of course, isn't saying what its wonder compound actually is, or when the material is likely to be used in batteries that are commercially available.

It did, however, pledge to work further on the technology, its goal to minimise the environmental impact of battery manufacture. Longer lasting batteries means fewer batteries need to be made, it said. ®

Beginner's guide to SSL certificates

More from The Register

next story
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
Don't wait for that big iPad, order a NEXUS 9 instead, industry little bird says
Google said to debut next big slab, Android L ahead of Apple event
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
Ex-US Navy fighter pilot MIT prof: Drones beat humans - I should know
'Missy' Cummings on UAVs, smartcars and dying from boredom
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
A drone of one's own: Reg buyers' guide for UAV fanciers
Hardware: Check. Software: Huh? Licence: Licence...?
The Apple launch AS IT HAPPENED: Totally SERIOUS coverage, not for haters
Fandroids, Windows Phone fringe-oids – you wouldn't understand
Apple SILENCES Bose, YANKS headphones from stores
The, er, Beats go on after noise-cancelling spat
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.