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Reactive Oxygen‐Doped 3D Interdigital Carbonaceous Materials for Li and Na Ion Batteries
Author(s) -
Fan Ling,
Lu Bingan
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201600565
Subject(s) - materials science , anode , electrochemistry , oxygen , lithium (medication) , doping , chemical engineering , carbon fibers , porosity , ion , electrode , composite material , chemistry , optoelectronics , organic chemistry , medicine , composite number , engineering , endocrinology
Carbonaceous materials as anodes usually exhibit low capacity for lithium ion batteries (LIBs) and sodium ion batteries (SIBs). Oxygen‐doped carbonaceous materials have the potential of high capacity and super rate performance. However, up to now, the reported oxygen‐doped carbonaceous materials usually exhibit inferior electrochemical performance. To overcome this problem, a high reactive oxygen‐doped 3D interdigital porous carbonaceous material is designed and synthesized through epitaxial growth method and used as anodes for LIBs and SIBs. It delivers high reversible capacity, super rate performance, and long cycling stability (473 mA h g −1 after 500 cycles for LIBs and 223 mA h g −1 after 1200 cycles for SIBs, respectively, at the current density of 1000 mA g −1 ), with a capacity decay of 0.0214% per cycle for LIBs and 0.0155% per cycle for SIBs. The results demonstrate that constructing 3D interdigital porous structure with reactive oxygen functional groups can significantly enhance the electrochemical performance of oxygen‐doped carbonaceous material.