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One-dimensional Cu2-xSe nanorods as the cathode material for high-performance aluminum-ion battery

One-dimensional Cu2-xSe nanorods as the cathode material for high-performance aluminum-ion battery
One-dimensional Cu2-xSe nanorods as the cathode material for high-performance aluminum-ion battery
© 2018 American Chemical Society. In this work, non-stoichiometric Cu2-xSe fabricated by a facile water evaporation process is used as high-performance Al-ion batteries (AIBs) cathode material. Cu2-xSe electrodes show high reversible capacity and excellent cycling stability, even at high current density of 200 mA g-1, the specific charge capacity in the initial cycle is 241 mAh g-1 and maintains 100 mAh g-1 after 100 cycles with a Coulombic efficiency (CE) of 96.1%, showing good capacity retention. The prominent kinetics of Cu2-xSe electrodes is also revealed by the galvanostatic intermittent titration technique (GITT), which is attributed to the ultrahigh electronic conductivity of Cu2-xSe material. Most importantly, an extensive research is dedicated to investigating the detailed intercalation and deintercalation of relatively large chloroaluminate anions into the cubic Cu2-xSe, which is conducive to better understand the reaction mechanism of Al/Cu2-xSe battery.
Cu2-xSe, aluminum-ion battery, cathode material, one-dimensional nanorods, reaction mechanism
1944-8244
17942-17949
Jiang, Jiali
42b3e6ca-096f-42f7-8b90-d165420076a5
Li, He
1d46f87c-8509-43b9-9ee5-eb1065c4de0f
Fu, Tao
c83a305c-28b3-47d7-bed2-025090980879
Hwang, Bing Joe
e8627d9b-f368-46ee-9f8b-d93370e8baae
Li, Xue
392b9143-c1da-416a-82d8-5b6e7880a2bb
Zhao, Jinbao
40b1eebf-6f3e-4767-a559-39ab8aca25c0
Jiang, Jiali
42b3e6ca-096f-42f7-8b90-d165420076a5
Li, He
1d46f87c-8509-43b9-9ee5-eb1065c4de0f
Fu, Tao
c83a305c-28b3-47d7-bed2-025090980879
Hwang, Bing Joe
e8627d9b-f368-46ee-9f8b-d93370e8baae
Li, Xue
392b9143-c1da-416a-82d8-5b6e7880a2bb
Zhao, Jinbao
40b1eebf-6f3e-4767-a559-39ab8aca25c0

Jiang, Jiali, Li, He, Fu, Tao, Hwang, Bing Joe, Li, Xue and Zhao, Jinbao (2018) One-dimensional Cu2-xSe nanorods as the cathode material for high-performance aluminum-ion battery. ACS Applied Materials & Interfaces, 10 (21), 17942-17949. (doi:10.1021/acsami.8b03259).

Record type: Article

Abstract

© 2018 American Chemical Society. In this work, non-stoichiometric Cu2-xSe fabricated by a facile water evaporation process is used as high-performance Al-ion batteries (AIBs) cathode material. Cu2-xSe electrodes show high reversible capacity and excellent cycling stability, even at high current density of 200 mA g-1, the specific charge capacity in the initial cycle is 241 mAh g-1 and maintains 100 mAh g-1 after 100 cycles with a Coulombic efficiency (CE) of 96.1%, showing good capacity retention. The prominent kinetics of Cu2-xSe electrodes is also revealed by the galvanostatic intermittent titration technique (GITT), which is attributed to the ultrahigh electronic conductivity of Cu2-xSe material. Most importantly, an extensive research is dedicated to investigating the detailed intercalation and deintercalation of relatively large chloroaluminate anions into the cubic Cu2-xSe, which is conducive to better understand the reaction mechanism of Al/Cu2-xSe battery.

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More information

Accepted/In Press date: 2 May 2018
e-pub ahead of print date: 2 May 2018
Published date: 30 May 2018
Keywords: Cu2-xSe, aluminum-ion battery, cathode material, one-dimensional nanorods, reaction mechanism

Identifiers

Local EPrints ID: 424324
URI: http://eprints.soton.ac.uk/id/eprint/424324
ISSN: 1944-8244
PURE UUID: 6b1a585c-de0b-42d4-acd8-5c48f3b7d00c

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Date deposited: 05 Oct 2018 11:36
Last modified: 27 Apr 2022 06:34

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Contributors

Author: Jiali Jiang
Author: He Li ORCID iD
Author: Tao Fu
Author: Bing Joe Hwang
Author: Xue Li
Author: Jinbao Zhao

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