Flat batteries could improve performance and lower cost of energy storage

In the continuing search for ever more efficient and cheaper batteries, researchers at the Department of Energy’s (DoE) Pacific Northwest National Laboratory (PNNL) have managed to increase the performance of sodium-nickel chloride batteries in an interesting way – flattening them. No, not running them down until they’re out of juice, but rather replacing their typical cylindrical shape with a flat disc design. The redesign allows the battery to deliver 30 percent more power at lower temperatures, making them a viable alternative to lithium-ion batteries.

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