Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/92540
Title: Atomic‐layer‐deposited amorphous MoS2 for durable and flexible Li–O2 batteries
Authors: Song, Ming
Tan, Hua
Li, Xianglin
Tok, Alfred Iing Yoong
Liang, Pei
Chao, Dongliang
Fan, Hong Jin
Keywords: Atomic Layer Deposition
Flexible Batteries
DRNTU::Engineering::Materials
Issue Date: 2019
Source: Song, M., Tan, H., Li, X., Tok, A. I. Y., Liang, P., Chao, D., & Fan, H. J. (2019).Atomic‐layer‐deposited amorphous MoS2 for durable and flexible Li–O2 batteries. Small Methods, 1900274-. doi:10.1002/smtd.201900274
Series/Report no.: Small Methods
Abstract: Li–O2 batteries (LOB) potentially have the highest specific capacity among all types of metal‐ion batteries but suffer severely from cycle instability and low energy efficiency. In this work, an integrated cathode is fabricated that contains an amorphous MoS2 thin layer deposited on a 3D conductive carbon scaffold to improve the energy efficiency to ≈83% and cycle life up to 190 cycles. An advanced pressure‐tuned stop‐flow atomic layer deposition (ALD) method is employed to deposit a ≈5 nm thick amorphous MoS2 layer on carbon nanotube forest‐covered graphite foam. It is established that this integrated 3D cathode exhibits high catalytic activity for both oxygen reduction reaction and oxygen evolution reaction. The benefit of the ALD MoS2 in lowering the energy barrier is also supported by first‐principles calculations. Finally, quasi‐solid state flexible LOBs are also assembled that can be stably discharged up to 6 d. This new and rational design of cathode may provide a new direction for achieving high‐performance flexible Li–O2 batteries.
URI: https://hdl.handle.net/10356/92540
http://hdl.handle.net/10220/48606
ISSN: 2366-9608
DOI: http://dx.doi.org/10.1002/smtd.201900274
Rights: This is the peer reviewed version of the following article: Song, M., Tan, H., Li, X., Tok, A. I. Y., Liang, P., Chao, D., & Fan, H. J. (2019).Atomic‐layer‐deposited amorphous MoS2 for durable and flexible Li–O2 batteries. Small Methods, 1900274-., which has been published in final form at http://dx.doi.org/10.1002/smtd.201900274. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20200605
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles
SPMS Journal Articles

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