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Molybdenum Dichalcogenide Cathodes for Aluminum-Ion Batteries

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journal contribution
posted on 13.09.2020 by Shalini Divya, James Johnston, T Nann
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Many successful battery electrodes are based on 2D-layered materials. Aluminum-ion batteries are studied using molybdenum dichalcogenides: MoS2, MoSe2, and MoSSe as active cathode materials. The batteries show clear discharge voltage plateaus in the ranges 1.6–1.4 V for MoS2 and MoSe2, and 0.6–0.5 V for MoSSe. MoS2 and MoSe2 have similar crystal structures; interestingly, it is found that MoSe2 performed better than MoS2. MoSSe exhibits a higher specific capacity over MoS2 and MoSe2, but the energy density is lower than MoSe2 at a current rate of 40 mA g−1. MoSe2 cells record a discharge capacity of ≈110 mAh g−1 with an average potential in the range of 2.0–1.8 V and 1.5–0.8 V during discharge. The cells are stable at 100 mA g−1 for over 200 cycles with 90% coulombic efficiency.

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Preferred citation

Divya, S., Johnston, J. H. & Nann, T. (2020). Molybdenum Dichalcogenide Cathodes for Aluminum-Ion Batteries. Energy Technology, 8(6), 2000038-2000038. https://doi.org/10.1002/ente.202000038

Journal title

Energy Technology

Volume

8

Issue

6

Publication date

01/06/2020

Pagination

2000038-2000038

Publisher

Wiley

Publication status

Published

Online publication date

22/04/2020

ISSN

2194-4288

eISSN

2194-4296

Article number

ARTN 2000038

Language

en

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