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Title: Proton-enabled biomimetic stabilization of small-molecule organic cathode in aqueous zinc-ion batteries

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/d2ta01621d· OSTI ID:1898993

Small-molecule organic cathode materials offer flexible structural design features, high capacity and sustainable production. Nonetheless, the stability decrease due to the high solubility of the electrode materials especially under electrochemical cycling conditions limits their wide-range applications in energy storage technologies. Here we describe a nature-inspired strategy to address cathode stability via introduction of transient vinylogous amide hydrogen bond networks into the small-molecule organic electrode material hexaazatrianthranylene (HATA) embedded quinone (HATAQ). Thanks to the proton-enabled biomimetic mechanism, HATAQ exhibits unparalleled cycling stability, ultra-high capacity and rate capability in aqueous zinc-ion batteries, delivering 492 mA h g-1 at 50 mA g-1 and a reversible capacity of 199 mA h g-1, corresponding to 99% retention at 20 A g-1 after 1000 cycles.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST); Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Ministry of Science and Technology, Taiwan (MOST); USDOE
Grant/Contract Number:
AC05-00OR22725; MOST109-2113-M-006-016; MOST109-2634-F-006-020; SC0012704
OSTI ID:
1898993
Alternate ID(s):
OSTI ID: 1870930
Journal Information:
Journal of Materials Chemistry. A, Vol. 10, Issue 23; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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