Researchers develop water-based battery that has twice the energy density of lithium batteries: 'Demonstrating significant stability'

Researchers develop water-based battery that has twice the energy density of lithium batteries: 'Demonstrating significant stability'

Leslie Sattler

Scientists in China have developed an innovative new water-based battery that could be a game-changer for electric vehicles and the fight against atmospheric pollution, according to Interesting Engineering.

So, what makes this breakthrough exciting? These aqueous batteries are not only much safer than traditional lithium-ion batteries — they can store almost double the energy.

Today's lithium batteries have enabled the rise of EVs, but they have some serious limitations. Their flammable organic electrolytes make them a fire risk, and their energy density puts a cap on EV driving range.

The new water-based design replaces those combustible components with a safer, more stable water-based electrolyte. The result is a battery that can pack way more energy into the same space.

Researchers have been working hard on this water battery concept for years, and their efforts are paying off. In the lab, they've already achieved an impressive energy density of 1,200 watt-hours per liter, according to findings published in the journal Nature Energy. That's on par with cutting-edge solid-state batteries and double that of top lithium-ion cells.

But the advantages don't stop there. These aqueous batteries are already "demonstrating significant stability," according to SCMP. Not only are they energy-dense and inflammable, but they're also highly durable.

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(*) https://www.yahoo.com/tech/researchers-develop-water-based-battery-120000544.html