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. 2020 May 22;6(21):eaay5098. doi: 10.1126/sciadv.aay5098

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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Fig. 4 — (A) Comparison of the Li₂S decomposition and lithium ion diffusion barriers on the surface of nickel, graphene basal plane, and graphene edge. Energy profiles for the decomposition of Li₂S cluster and lithium ion diffusion on the surface of (B) graphene edge, (C) graphene basal plane, and (D) nickel. Inset figures are top-view schematic representations of the corresponding decomposition and lithium ion diffusion pathways for graphene edge, graphene basal plane, and nickel. Here, green, yellow, gray, and beige balls symbolize lithium, sulfur, nickel, and carbon atoms, respectively.