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Ni‐Based Coordination Polymer as a Promising Anode Material for Potassium Batteries
Author(s) -
Kraevaya Olga A.,
Shchurik Elena V.,
Troshin Pavel A.
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201901050
Subject(s) - anode , potassium , battery (electricity) , materials science , electrode , current density , polymer , battery capacity , voltage , potassium ion battery , chemical engineering , metallurgy , chemistry , composite material , electrical engineering , thermodynamics , physics , power (physics) , quantum mechanics , lithium vanadium phosphate battery , engineering
Ni‐based coordination polymer derived from 3,3′‐diaminobenzidine (Ni‐DAB) is reported as a stable potassium battery anode working in the safe voltage window of 0.4–2.0 V versus K + /K. At a low current density of 50 mA g −1 , specific discharge capacity of 183 mA h g −1 is reached. Capacity of 158 mA h g −1 is obtained at 1 A g −1 , whereas capacity decay is only 0.014% per cycle over 600 cycles, which is among the best cycling stability results reported for electrode materials used in potassium batteries.