Towards building next-generation batteries using a pigment electrode

Researchers have demonstrated calcium ion batteries (CIBs) using pigment electrodes such as Prussian blue and its analogues. The CIBs showed excellent cyclability of discharge and charge in a calcium-based organic electrolyte. This is thought to derive from strong atomic bonds in Prussian blue structures, which possess movable pathways for large-sized ions in three dimensions. Such unique structures have excellent potential for application in newly designed batteries.

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