How the solar flow battery works. Image: Li et al./Chem
Scientists in the United States and Saudi Arabia have harnessed the abilities of both a solar cell and a battery in one device – a “solar flow battery” that soaks up sunlight and efficiently stores it as chemical energy for later on-demand use. Their research, published September 27 in the journal Chem, could make electricity more accessible in remote regions of the world.
While sunlight has increasingly gained appeal as a clean and abundant energy source, it has one obvious limitation – there is only so much sunlight per day, and some days are a lot sunnier than others. In order to keep solar energy practical, this means that after sunlight is converted to electrical energy, it must be stored...
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