High-temp sodium-zinc batteries reveal causes of rapid capacity loss

Helmholtz-Zentrum Dresden-Rossendorf (HZDR) researchers have used operando X-ray imaging to reveal why sodium-zinc molten-salt batteries, operating at around 600 C and promising for stationary energy storage due to low-cost, abundant materials, experience persistent capacity loss.From ESS News Aresearch team at HZDR in Germany has directly observed, for the first time, previously hidden aging processes in sodium-zinc molten-salt batteries, using operando X-ray radiography to image the cells while actively operating at around 600 C. The technology has long been regarded as highly promising for ...

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