Towards High Power High Energy Aqueous Sodium‐Ion Batteries: The NaTi2(PO4)3/Na0.44MnO2 System

Ultrafast rate capability (>100 C current rates) and superior high-rate cycling stability (>1500 cycles) in aqueous NaTi2(PO4)3/Na0.44MnO2 cells are demonstrated. Aqueous NaTi2(PO4)3/Na0.44MnO2 cell may be a candidate for safe, low cost, high power storage systems. 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.