An Aqueous Sodium Ion Hybrid Battery Incorporating an Organic Compound and a Prussian Blue Derivative

An aqueous sodium ion hybrid battery consisting of disodium naphthalenediimide salt (anode) and KCo0.5Cu0.5Fe(CN)6 (cathode) is reported. Both electrode materials are inexpensive and exhibit appropriate operating voltages and robust reversibility under neutral aqueous electrolyte conditions, delivering a full-cell voltage of 1.1 V with 88% capacity retention after 100 cycles. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.