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Aluminum-Celmet developed in Japan can triple Lithium-ion battery capacity

Aluminium Celmet, developed in Japan, could make rechargeable batteries last three times longer
Aluminium Celmet, developed in Japan, could make rechargeable batteries last three times longer
The porous metal has a three-dimensional mesh-like structure and can be used to increase battery life

Sumitomo Electric Industries Ltd (SEI) is the Japanese company behind this innovation. If you haven’t heard of SEI before, it is an electric wire and optical fiber cable manufacturer that recently developed a porous aluminum dubbed Aluminum-Celmet.

The new metal can be integrated into current Li-ion rechargeable batteries and provide greater battery capacity. Its three-dimensional structure reportedly forms interconnected, spherical pores that can be modulated by cutting and stamping. In addition, Aluminum-Celmet’s gravity and electrical resistivity are considerably lower than those of Celmet, which is a metal, derived from Nickel and currently used by SEI when manufacturing NiMH batteries for hybrid vehicles.  

Apparently, standard Li-ion batteries are often made by Aluminum and Cu (copper) foils and by replacing the Al foil with Aluminum-Celmet, the rechargeable Li-ion battery can have 1.5 to 3 times greater capacity.

Sumitomo Electric Industries is supposedly setting up a production line at Osaka Works and plans to accelerate the development process and move to mass production.

Recently, scientists at the Royal Melbourne Institute of Technology (RMIT) in Australia managed to typify the capability of piezoelectric thin films to generate electricity via mechanical pressure. This is another innovation that will provide longer battery life by allowing consumers to charge their devices by just typing or touching the screen.

It appears that very soon we might be buying notebooks that offer 40-50 hours of battery life or at least ones that can be charged without an AC unit.

Source(s)

> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2011 07 > Aluminum-Celmet developed in Japan can triple Lithium-ion battery capacity
Author: Ivan Zhekov, 2011-07- 5 (Update: 2012-05-26)