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Realizing High‐Performance Li/Na‐Ion Half/Full Batteries via the Synergistic Coupling of Nano‐Iron Sulfide and S‐doped Graphene
Author(s) -
Haridas Anupriya K.,
Sadan Milan K.,
Kim Huihun,
Heo Jungwon,
Sik Kim Sun,
Choi ChangHo,
Young Jung Hyun,
Ahn HyoJun,
Ahn JouHyeon
Publication year - 2021
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.202100247
Subject(s) - anode , materials science , graphene , sulfide , battery (electricity) , chemical engineering , iron sulfide , doping , aerogel , composite number , energy storage , electrode , nanotechnology , chemistry , composite material , metallurgy , optoelectronics , sulfur , power (physics) , physics , engineering , quantum mechanics
Abstract Iron sulfide (FeS) anodes are plagued by severe irreversibility and volume changes that limit cycle performances. Here, a synergistically coupled hybrid composite, nanoengineered iron sulfide/S‐doped graphene aerogel, was developed as high‐capacity anode material for Li/Na‐ion half/full batteries. The rational coupling of in situ generated FeS nanocrystals and the S‐doped rGO aerogel matrix boosted the electronic conductivity, Li + /Na + diffusion kinetics, and accommodated the volume changes in FeS. This anode system exhibited excellent long‐term cyclability retaining high reversible capacities of 422 (1100 cycles) and 382 mAh g −1 (1600 cycles), respectively, for Li + and Na + storage at 5 A g −1 . Full batteries designed with this anode system exhibited 435 (FeS/srGOA||LiCoO 2 ) and 455 mAh g −1 (FeS/srGOA||Na 0.64 Co 0.1 Mn 0.9 O 2 ). The proposed low‐cost anode system is competent with the current Li‐ion battery technology and extends its utility for Na + storage.