Feeds

Boffins triple battery life with metal foam

Power pores pump Lithium-ion

Secure remote control for conventional and virtual desktops

Japanese researchers have developed a new material they estimate can triple the capacity of lithium-ion batteries.

The breakthrough comes courtesy of Sumitomo Electric Industries, which has set up a "small-scale production line" at its Osaka Works R&D center to produce the battery-boosting material, which they call "Aluminum-Celmet".

Sumitomo Electric's 'Aluminum-Celmet' material

Plenty of power-packing pores (click to enlarge)

What gives Aluminum-Celmet its ability to be the basis of highly efficient batteries is its extreme porosity – up to 98 per cent. When used as a replacement for the aluminum foil anode in a secondary – rechargeable – lithium-ion battery, that porosity allows for the battery to contain a significantly larger amount of the lithium compound that contributes its ions to the electrical flow.

Sumitomo Electric's development of the Aluminum-Celmet material is an outgrowth of its previous work on similar nickel and nickel-chromium materials that they branded as Celmet – presumably a mash-up of "cell" and "metal".

The manufacturing method that achieves Celmet's high porosity involves applying a conductive coating to plastic foam, nickel-plating that structure, then removing the foam by heating the material. The resulting material is a three-dimensional mesh of open, spherical pores that, Sumitomo Electric claims, is "easy to process" by conventional techniques such as cutting and stamping.

Sumitomo Electric has already used nickel-based Celmet to create nickel-metal hydride and nickel-cadmium battery cells. The new Aluminum-Celmet material, however, has the advantages of being lighter and having improved electric conductivity and corrosion resistance, properties that make it suitable for secondary lithium-ion batteries.

The company calculates that a lithium-ion automotive battery pack built using Aluminum-Celmet could provide between 1.5 and three times as much charging capacity. By that calculation, the same amount of charge could be carried in a smaller, lighter battery.

Other possible uses for Aluminum-Celmet batteries, Sumitomo Electric suggests, include compact batteries for use in the home to store power that has been generated from solar "and other natural sources". Although the company doesn't specifically mention electronic devices, there appears to be no reason why this new material couldn't improve their batteries' capacity, as well.

Aluminum-Celmet also holds potential for improved capacitors, as well – and seeing as how aluminum-based capacitors have both positive and negative conductors separated by a dielectric, the chances for weight and bulk savings are even greater. ®

New hybrid storage solutions

More from The Register

next story
Apple iPhone 6: Missing sapphire glass screen FAIL explained
They just cannae do it in time, says analyst
Half a BILLION in the making: Bungie's Destiny reviewed
It feels very familiar - but it's still good
Oh noes, fanbois! iPhone 6 Plus shipments 'DELAYED' in the UK
Is EMBIGGENED Apple mobile REALLY that popular?
Apple's big bang: iPhone 6, ANOTHER iPhone 6 Plus and WATCH OUT
Let's >sigh< see what Cupertino has been up to for the past year
Huawei ditches new Windows Phone mobe plans, blames poor sales
Giganto mobe firm slams door shut on Microsoft. OH DEAR
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Apple's SNEAKY plan: COPY ANDROID. Hello iPhone 6, Watch
Sizes, prices and all – but not for the wrist-o-puter
Get your Indian Landfill Android One handsets - they're only SIXTY QUID
Cheap and deafening mobes for the subcontinental masses
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
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.
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?
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.