Porous FeF/MWCNTs composite cathode promoting high performance aluminum storage
Rechargeable aluminum-ion batteries (RAIBs) attract great attention for stationary energy storage, but there remains a lack of suitable cathode materials for them. Here, a porous iron fluoride/multi wall carbon nanotube (FeF 3 /MWCNTs) composite as a cathode for RAIBs shows high discharge capacity (...
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Veröffentlicht in: | Chemical communications (Cambridge, England) England), 2022-12, Vol.58 (97), p.13495-13498 |
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Zusammenfassung: | Rechargeable aluminum-ion batteries (RAIBs) attract great attention for stationary energy storage, but there remains a lack of suitable cathode materials for them. Here, a porous iron fluoride/multi wall carbon nanotube (FeF
3
/MWCNTs) composite as a cathode for RAIBs shows high discharge capacity (180 mA h g
−1
) and good rate performance, while MWCNTs play crucial roles in improving conductivity and cycle stability. Various characterizations elucidate its conversion-type mechanism, in particular, the Fe
3+
/Fe
2+
conversion exhibits a high operating potential of 1.75 V and discharge capacity of 123 mA h g
−1
, which is very promising for practical applications.
FeF
3
/MWCNTs as a cathode for rechargeable aluminum-ion batteries exhibits excellent electrochemical performance, in particular the Fe
3+
/Fe
2+
conversion reaction makes it have great application potential. |
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ISSN: | 1359-7345 1364-548X |
DOI: | 10.1039/d2cc04338f |