A breakthrough in Renewable Energy storage battery

As we know
that due to inconsistence nature of renewable energy source, the application or
consumption time doesn’t match with the energy generation period. This is
mainly due to the limitations of technology pertaining to energy storage
battery. There are number of innovations are being made in this area, however
it seems the required technology wasn’t achieved in past.


 

Credit:
Photo courtesy of Aquion

The search of such energy storage battery
technology is over, thanks to the innovation of a battery module built at
Aquion’s plant in Pennsylvania. The battery was developed by researchers
at 
Carnegie Mellon University. Their lab work
became a company, Aquion Energy, and now the developers are raising capital in order
to continue scaling up their battery production efforts. Last week, the company
announced $34.6 million in funding. “We have been hard at work making the
world’s best long duration battery even better,” Scott A. Pearson, CEO of
Aquion Energy, 
recently said. “The improved chemistry of
the second generation Aqueous Hybrid Ion battery yields more energy, and will
deliver more value for our customers.”

A new kind
of battery that stores energy from solar and wind power cheaply has hit the
market.
Aquion Energy, a company spun out of Carnegie Mellon University,
recently delivered the first of its batteries to operators of small power
grids, or “microgrids,” that can operate independently of the centralized grid.
Microgrids, which typically use local energy sources such as wind, solar, and
hydropower, could help hundreds of millions of people who live beyond
conventional grids, get reliable electricity. Aquion’s batteries use sodium
ions from saltwater as their electrolyte. Electrical current moves through this
brackish liquid from positive electrodes based on manganese oxide to negative
ones based on carbon. The batteries cost about as much as lead-acid ones, which
are sometimes used now, but they last twice as long, effectively cutting the
long-term costs in half.

Approximately
one third of world’s population doesn’t have conventional electricity due to
remote location and other reasons. Now, with this new innovation they could
easily get cheaper and clearly electricity as renewable energy sources are
available all over the world. This will boost the United Nation and World Bank
initiatives of electricity to all. The effect of carbon dioxide levels on the
climate of the earth is not settled science despite the document flood from the
IPCC and the PR machines of enviro-political complex that profits from climate
hyperbole. There should be more emphasis on using the renewable energy to
reduce the effect of carbon dioxide in the environment. I think this new
battery technology could help in that direction.

One issue
with this battery design is that it is only good to -5degC, which means it must
be protected from the sub-freezing temperatures that exist during winter in
many remote locations where it would be useful. The problem could be overcome
with necessary insulation or heating to keep the batteries above freezing. One
interesting aspect of Aquion batteries is that it can be run completely dead
(unlike lead acid), and that they have about 3,000 useful cycles of lifetime. 

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