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US aims new water-based battery to power gird-scale energy storage


The Aqueous Battery Consortium, including Stanford and SLAC, receives up to $62.5M from the DOE to advance water-based battery technology.

We need affordable, grid-scale energy storage that will work dependably for a long time,” said Yi Cui, the project’s director and Stanford professor at SLAC, in a statement. A significant amount of stationary energy storage is required to achieve net-zero global greenhouse gas emissions, and water is the only feasible solvent available at the necessary scale and cost for such batteries. While the challenges of controlling charge transfer between solids and water from the molecular to device scale and achieving near 100 percent efficiency remain unresolved, the team, supported by DOE, is determined to find solutions.

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