In US new invention of Engineers its a bettery made of three molten metals, which could help smooth the power supply from renewable energy sources. "Using these molten metal electrodes is, a very good idea.
Bettery which designed Previously battery have drawbacks it was too expensive to help store energy on the scale of a national power grid.
The new liquid battery has a negative electrode made of lead, which is cheap and melts easily, mixed with a dash of antimony to boost performance.
So its cost is lower only heat required to liquefy the metals.
this bettery is also simple solution for storing electricity is set for commercial demonstrations within a year and has been greeted with enthusiasm by engineers in the UK.
Fellow of the Royal Academy of Engineering and former chair of the New and Renewable Energy Centre
Explained "We have spare capacity available if only we could store it, so that we could use it when the wind isn't blowing,
Explained "We have spare capacity available if only we could store it, so that we could use it when the wind isn't blowing,
The battery uses two layers of molten metal, separated by a layer of molten salt that acts as the battery’s electrolyte (the layer that charged particles pass through as the battery is charged or discharged). Because each of the three materials has a different density, they naturally separate into layers, like oil floating on water.
The original system, using magnesium for one of the battery’s electrodes and antimony for the other, required an operating temperature of 700 C. But with the new formulation, with one electrode made of lithium and the other a mixture of lead and antimony, the battery can operate at temperatures of 450 to 500 C.
Extensive testing has shown that even after 10 years of daily charging and discharging, the system should retain about 85 percent of its initial efficiency — a key factor in making such a technology an attractive investment for electric utilities.
Currently, the only widely used system for utility-scale storage of electricity is pumped hydro, in which water is pumped uphill to a storage reservoir when excess power is available, and then flows back down through a turbine to generate power when it is needed.
The original system, using magnesium for one of the battery’s electrodes and antimony for the other, required an operating temperature of 700 C. But with the new formulation, with one electrode made of lithium and the other a mixture of lead and antimony, the battery can operate at temperatures of 450 to 500 C.
Extensive testing has shown that even after 10 years of daily charging and discharging, the system should retain about 85 percent of its initial efficiency — a key factor in making such a technology an attractive investment for electric utilities.
Currently, the only widely used system for utility-scale storage of electricity is pumped hydro, in which water is pumped uphill to a storage reservoir when excess power is available, and then flows back down through a turbine to generate power when it is needed.
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