|
advertisement
|
|
|
Share It
-----------------------
|
An innumerable number of devices run on
lithium-ion batteries. Thanks to Rice University researchers, their size is no
longer a factor (at least for mobile devices0. Prof Pulickel Ajayan and his
colleagues claim to have succeeded in building complete lithium –ion energy
storage device in a single nanowire. The researcher say their batteries are as
small as devices can get, and hence immensely valuable as rechargeable power
sources for the latest nano electronics.
The researchers tested two versions of
their battery/supercapacitor hybrid. The first version resembles a sandwich
comprised with nickel/tin anode, polyethylene oxide (PEO) electrolyte and
polyaniline cathode layers. This setup proved that lithium ions could
efficiently traverse the anode to electrolyte, and then make their way back to
the supercapacitor -like cathode. The cathode is called a supercapacitor
because of its ability to discharge and charge quickly using ions in bulk.
“The idea here is to fabricate nanowire
energy storage devices with ultrathin separation between the electrodes.” said
Arava Leela Mohana Reddy, a research scientist at Rice and co-author of the
paper. “This affects the electrochemical behavior of the device. Our devices
could be a very useful tool to probe nanoscale phenomenon.”
Speaking about the time it will take such
batteries to actually his the streets, Sanketh Gowda, the paper’s lead author,
said: “There’s a lot to be done to optimize the devices in terms of
performance. Optimization of the polymer separator and its thickness and an
exploration of different electrode systems could lead to improvement.
Attachments:
If you LIKE this, then copy the below and put this in your WEBSITE or BLOG
