A breakthrough in Renewable Energy storage battery

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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