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Highly Stable and High Rate‐Performance Na‐Ion Batteries Using Polyanionic Anthraquinone as the Organic Cathode
Author(s) -
Tang Wu,
Liang Ren,
Li Di,
Yu Qihang,
Hu Jiahui,
Cao Bei,
Fan Cong
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201900539
Subject(s) - anthraquinone , cathode , ionic bonding , ion , inorganic chemistry , chemistry , sodium , ionic liquid , molecule , materials science , chemical engineering , organic chemistry , catalysis , engineering
Abstract Sodium 9,10‐anthraquinone‐2,6‐disulfonate (Na 2 AQ26DS), with polyanionic character and two O−Na ionic bonds, is found to be a highly stable organic cathode in Na‐ion batteries, delivering capacities of approximately 120 mAh g −1 for 300 cycles (50 mA g −1 ) and around 99 mAh g −1 for 1000 cycles (1 A g −1 ). These results are the best performance reported to date for small‐molecule, anthraquinone‐based organic cathodes in Li‐, Na‐, or K‐ion batteries.