In 10 seconds? Engineers have designed an inexpensive battery that could provide cheap backup storage for renewable energy sources, replacing currently used expensive lithium-ion batteries.

So, what are the alternative materials? This new technology uses inexpensive and abundant materials, aluminium and sulfur, as the two electrode materials with a molten salt electrolyte in between to make batteries that can be used to store energy generated from wind and solar power. These batteries can then be used as power sources at night or on a calm day. The new technology also overcomes one of the biggest problems in battery reliability which is the formation of dendrites.

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