Robust Pseudocapacitive Sodium Cation Intercalation Induced by Cobalt Vacancies at Atomically Thin Co1−xSe2/Graphene Heterostructure for Sodium‐Ion Batteries

• Published in: Angewandte Chemie International Edition Vol. 60; no. 34; pp. 18830 - 18837
• Main Authors: Yuan, Ding, Dou, Yuhai, Tian, Yuhui, Adekoya, David, Xu, Li, Zhang, Shanqing
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 16.08.2021
• Edition: International ed. in English
• Subjects: atomically thin; Batteries; Cations; Cobalt; cobalt vacancies; Density functional theory; Diffusion barriers; Electrode materials; Electrodes; Electronic structure; Energy storage; Graphene; Heterostructures; Intercalation; Lithium; pseudocapacitance; Rechargeable batteries; Sodium; Sodium-ion batteries; Vacancies

Electronic structure engineering on electrode materials could bring in a new mechanism to achieve high energy and high power densities in sodium ion batteries. Herein, we design and create Co vacancies at the interface of atomically thin CoSe2/graphene heterostructure and obtain Co1−xSe2/graphene he...