New water-based battery can store wind and solar energy for pennies - lithium ion battery cost

Scientists at Stanford University
Hydrogen batteries were published in a research paper in the journal Nature on Monday.
The battery has the ability to store wind and solar energy before it is needed.
The prototype battery is 3 inch high and produces 20 milliwatts-
A few hours of electricity.
Although production is not large at the moment, researchers believe they can apply prototypes to industrial production
Can let the battery charge the level of 10,000 times.
This will make the battery ten years old. long lifespan.
"We believe that this prototype technology will be able to achieve the goal of the Department of Energy (DOE) to make utilities --
Scale electric storage is practical, "explains Cui Yi, professor of materials science at Stanford University.
The battery uses cheap manganese sulfate or industrial salt to store energy through a reversible electronic exchange reaction.
Salt is dissolved in water, in which it can interact with the electrons entering the battery.
"What we do is throw a special salt into the water, put it into the electrode, and produce a reversible chemical reaction that stores electrons in the form of hydrogen," Cui said . ".
Cui hopes to get a patent in the process of the team's efforts to reduce battery costs.
"We have identified a catalyst that could make us less than $100 --per-kilowatt-
S. Department of Energy targets, "he said.
This development will reduce battery costs by nearly half, and the current price of lithium-ion battery packs is about $209/kWh. hour.
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