Feeds

Hitachi offers to double li-ion battery longevity

Twice as long before cell will no longer charge up

High performance access to file storage

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. ®

High performance access to file storage

More from The Register

next story
Report: Apple seeking to raise iPhone 6 price by a HUNDRED BUCKS
'Well, that 5c experiment didn't go so well – let's try the other direction'
Video games make you NASTY AND VIOLENT
Especially if you are bad at them and keep losing
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Nvidia gamers hit trifecta with driver, optimizer, and mobile upgrades
Li'l Shield moves up to Android 4.4.2 KitKat, GameStream comes to notebooks
Gimme a high S5: Samsung Galaxy S5 puts substance over style
Biometrics and kid-friendly mode in back-to-basics blockbuster
AMD unveils Godzilla's graphics card – 'the world's fastest, period'
The Radeon R9 295X2: Water-cooled, 5,632 stream processors, 11.5TFLOPS
Sony battery recall as VAIO goes out with a bang, not a whimper
The perils of having Panasonic as a partner
NORKS' own smartmobe pegged as Chinese landfill Android
Fake kit in the hermit kingdom? That's just Kim Jong-un-believable!
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.