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New Li-Ion batteries with graphene balls: charged in 12 min and capacity plus 45%.

New Li-Ion batteries with graphene balls: charged in 12 min and capacity plus 45%.

[10:50 sun,3.December 2017   by ]    

Batteries are ubiquitous and the motor of all mobile devices - and unfortunately also often a limiting factor: Batteries are one of the biggest weight factors and their relatively long charging times otherwise put mobile devices on the lead of the charging cable for a too long time.

Samsung has now presented a study on a new technology that will help both problems. With the help of the new battery technology, the"Graphene Balls", lithium-ion rechargeable batteries should be charged in 12 minutes (5 times faster than before) and show a 45% increase in capacity (or the battery should shrink by 45% for the same size).

Other advantages compared to conventional Li-Ion batteries: the new battery withstands more charging cycles - it retains 78.6% of its capacity after 500 charging cycles in the temperature range between 5°C and 60°C - and generates less heat during operation than normal rechargeable batteries.


Graphene-Balls
Graphene Spheres


Graphene is a hexagonal lattice made of carbon atoms, only one atom thick, with very special properties such as high thermal and electrical conductivity and stability. The graphene spheres - a 3-D structure synthesized from silicone dioxide - cover the anode and cathode of the Li-Ion battery, making it more conductive and also preventing harmful side reactions, resulting in faster charging times and greater capacitance. The improvements are applicable to both small batteries and smartphones as well as larger ones for electric cars.

Such improved rechargeable batteries would of course also be attractive for all sorts of applications in video production, be it lighter cameras with shorter charging times, drones with longer flight times or even lighter and more compact mobile LED lights or monitors. It is not yet clear when the technology will be ready for the market, but it is planned for 2019 - after all, the production of graphene balls should not be expensive according to Samsung, although the manufacturing process of the batteries has to be changed altogether, but not completely, since only the two poles of the battery have been changed.

Graphene-Balls-1
Graphene Spheres


Link more infos at bei www.nature.com

deutsche Version dieser Seite: Neue Li-Ion Akkus mit Graphen-Kugeln: in 12 Min geladen und mit 45% mehr Energie

    

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deutsche Version dieser Seite: Neue Li-Ion Akkus mit Graphen-Kugeln: in 12 Min geladen und mit 45% mehr Energie



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