a students' magazine

The battery of the future

Hi guys, how are you doing?

Today’s topic is about a problem that most of us, constantly connected people, will find very interesting and maybe we will finally find a solution to it. 😉

Nowadays many researches are carried out in several universities and research centers across the globe, and some of them focuses on energy accumulators (simply known as “batteries”).

The past decades had a peculiar importance in the evolution of the technologies involved in such things, but still the capacities of common batteries are limited by several aspects. For instance, the number of recharging cycles restricted to about 1000, the long time needed to recharge and last but not least the cost which is still relatively high (due to the materials used in the construction). All these factors are not good for the environment, as a long charge time means more energy wasted, the materials used are difficult to recycle and the restricted number of recharging cycles forces the consumer to soon throw away old batteries.

A recent study at the University of Stanford devised a new kind of battery which is amazingly convenient from many points of view. The technology is based on aluminum ions and in particular combines an aluminum sheet along with a graphite sheet, as the former is the anode (negative pole) while the latter is the cathode (positive pole), together submerged in a saline solution that can be easily packed in a small container. The real discovery is the use of graphite, as other attempts with aluminum were previously made but very often they resulted in failure, especially during charging. So far it may look like a battery like many others, but this is special! This particular battery is eco-friendly, because it improves all the common batteries defects : the maximum number of cycles is about 7500, the materials are not that expensive and the recharge time needed is incredibly approximately 1 minute. Yes, 1 minute! And that’s not all, because aluminum is not difficult to extract and purify for many countries and it is 100% recyclable using only the 5% of the energy needed by the first production. Oh, did I mention that the battery is flexible, that it is not inflammable at all and there are no risks of explosions?

However, while a big step has been done, the battery is still unfit for any use, as the voltage provided is around 2v, which is far from the minimum of 5v needed by many electrical devices such as smartphones. In any case the advantages of this battery are evident and its uses are infinite. We hope in a quick and good development of this accumulator so as to be equipped in our devices asap!

Here is the video demonstrating its functionality, directly published by Standford university:

Are you interested in this battery too? 😉

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