Flexible batteries based on graphene paper

(Chemistry World)

To fabricate roll-up displays and wearable devices, the power source that supplies them must also become more flexible.  The major challenge of developing a truly bendable power source has been the shortage of materials that are both highly flexible and have superior electronic conductivity. Polymers are typically used, but they are susceptible to degradation at relatively low temperatures.

Researchers have now developed a graphene-based hybrid electrode producing a flexible lithium rechargeable battery. The cathode material, in this case V₂O₅, is grown on graphene paper using pulsed laser deposition and graphene paper coated in lithium is used as the anode. The resultant battery is lightweight and flexible enough to be twisted or rolled.

Credit: Energy Environ. Sci.

The performance of the new battery appears to be promising. The electrode was shown to exhibit significantly improved electrochemical performance in almost all aspects of electrochemical properties, such as higher energy density, power density and better cycle life, compared with non-flexible conventional electrodes, according to the authors.

(Source: Bendy batteries a step closer)

Reference:
Flexible energy storage devices based on graphene paper
Energy Environ. Sci., 2011, DOI: 10.1039/c0ee00640h

 _________________________________
Gopal R. Rao, Ph.D.
Web Science Editor
Materials Research Society (MRS)

Comments

[Yuasa NP7-12]

Thanks for your efforts in writing this post. I found it very informative and interesting. I'll be looking out for more pieces from you.

[Ian]

would be really good to use a solar powered battery charge also

[שיווק באינטרנט]

Great post! I like it too much. It's very interesting. I always in search of such post.

[en el3e battery]

Anyone else thinking this would be great for Hyper-Cars??

[תאורת לד]

Nice post. It will be a good source of energy if constructed in huge plant of it. It will save energy and environment from pollution.

[plumbing]

A very well done experimental matter. I hope you can also share some photos of how you made this very informative project. And who knows it can be a very reliable project in the future.

[kevin kirkwood]

The bigger the project the more difficult the task at hand will be.

[metal beads]

A good source of energy. I hope that the materials used will bring minimal damage to the environment. Using of organic and renewable materials should be encourage for environmental and economical reasons.