Cornell university: it's no longer a dream to charge a battery in seconds, or even faster!

Many current batteries use a similar Yin - Yang double - electrode structure with non - conductor isolation. Now, however, engineers at Cornell university have developed an unusual new structure, thanks to its interwoven vortexes and instantaneous charging. The new technology, based on a complex set of porous shapes - the gyroid 24 - was previously used to make graphene, a "two-dimensional miracle material".

There is also ultra-thin carbon film, albeit not quite the same as graphene, assembled using a self-assembly process called blockco-polymer.

The carbon-based, 24-sided helix forms the anode of the battery, which contains thousands of holes, each about 40nm wide.

The pores are coated with a separation layer about 10 nanometers thick, then a sulfur cathode is added, and the final gap is filled with a conductive polymer called PEDOT.

Each pore can store and transmit energy, much like a miniature battery. But by dispersing them over the huge surface area of the spirochetes, the energy density of the new structure is much greater than that of conventional battery designs.

In practice, this means the battery can be charged in seconds, or even faster, the researchers say. Lead researcher UlrichWiesner said:

This three-dimensional structure basically eliminates all volume losses in the equipment.

More importantly, the field of interpenetration is reduced to the nanoscale, so that we can exponentially increase the energy density.

In other words, you can get energy in less time than a conventional battery.

Even so, the new design is not without its flaws. When the battery is charged and discharged, the sulfur expands, while the PEDOT portion does not. The latter will wear out over time. Wiesner said:

As the sulfur expands, these tiny polymers are torn to shreds. When it contracts again, it cannot reconnect. This means that some parts of the 3D battery can no longer be used.

The team is currently working on this issue while seeking a patent for proof-of-concept. Details of this study were published in the recently published journal energy and environmental science.

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