A redesign of sodium-nickel chloride batteries promises to overcome some of the obstacles long associated with rechargeable batteries. Replacing their typical cylindrical shape with a flat disc design allows the battery to deliver 30 percent more power at lower temperatures, according to work published by Pacific Northwest National Laboratory in the October 8 issue of ECS Transactions, a trade journal. Researchers say these sodium-beta batteries could eventually be used in electricity substations to balance the generation and delivery of wind and solar power on to the grid...
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