Title: Anode Materials: Nanosheets‐Assembled CuSe Crystal Pillar as a Stable and High‐Power Anode for Sodium‐Ion and Potassium‐Ion Batteries (Adv. Energy Mater. 20/2019)
Abstract: In article number 1900323, Yi Zeng, Fei Du and co-workers report the synthesis of a novel cubic phase CuSe crystal pillar which is self-assembled by nanosheets, together with the dual functionality for high-rate Na+ and K+ storage. A combination of in-situ X-ray diffraction and ex-situ transmission electron microscopy tests, reveal the structural transition and phase evolution of CuSe that show a reversible conversion reaction for both cells.