What question did this study set out to answer?

To develop and evaluate a phosphorene-derived lithium phosphide protective layer on lithium metal anodes to mitigate dendrite formation and electrolyte decomposition in lithium-oxygen batteries.

May 1, 2018ACS Nano

Two-Dimensional Phosphorene-Derived Protective Layers on a Lithium Metal Anode for Lithium-Oxygen Batteries

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To develop and evaluate a phosphorene-derived lithium phosphide protective layer on lithium metal anodes to mitigate dendrite formation and electrolyte decomposition in lithium-oxygen batteries.
Engineered an electrochemically active, two-dimensional phosphorene-derived lithium phosphide nanosized protective layer on lithium metal.
Tested electrochemical cycling stability in lithium symmetric cells and lithium-oxygen batteries using electrolytes including lithium bis(trifluoromethanesulfonyl)imide in N,N-dimethylacetamide.
Investigated interfacial behavior and stabilization mechanisms via ex situ characterization analyses and theoretical calculations.
Electrolyte decomposition was suppressed because the redox potential of the lithium phosphide layer exceeds the decomposition potential of the electrolyte.
Lithium dendrite growth was prevented during cycling due to lithium plating being thermodynamically unfavorable on the lithium phosphide surface.
Cycling performance was markedly improved in both lithium symmetric cells and lithium-oxygen battery systems.

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Implication

Experimental study reveals phosphorene-derived protective layers suppress dendrites and electrolyte breakdown on lithium metal anodes, suggesting improved cycling life for lithium-oxygen batteries.

Cite This Study

Kim et al. (2018) studied this question.

synapsesocial.com/papers/6a95761bdefd3e275b25ecfb https://doi.org/10.1021/acsnano.8b00348

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Implication

Experimental study reveals phosphorene-derived protective layers suppress dendrites and electrolyte breakdown on lithium metal anodes, suggesting improved cycling life for lithium-oxygen batteries.

Two-Dimensional Phosphorene-Derived Protective Layers on a Lithium Metal Anode for Lithium-Oxygen Batteries

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Discussion

Implication

Cite This Study

Two-Dimensional Phosphorene-Derived Protective Layers on a Lithium Metal Anode for Lithium-Oxygen Batteries

Key Points

Discussion

Implication

Cite This Study

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