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A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator
The issue of uncontrollable Li dendrite growth, caused by irregular lithium deposition, restricts the wide applications of Li metal based high energy batteries. In this paper, a polypropylene separator with a sputtered platinum nanolayer has been developed to improve the stability of the Li metal an...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9079675/ https://www.ncbi.nlm.nih.gov/pubmed/35541223 http://dx.doi.org/10.1039/c8ra02140f |
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author | Wen, Kaihua Liu, Lili Chen, Shimou Zhang, Suojiang |
author_facet | Wen, Kaihua Liu, Lili Chen, Shimou Zhang, Suojiang |
author_sort | Wen, Kaihua |
collection | PubMed |
description | The issue of uncontrollable Li dendrite growth, caused by irregular lithium deposition, restricts the wide applications of Li metal based high energy batteries. In this paper, a polypropylene separator with a sputtered platinum nanolayer has been developed to improve the stability of the Li metal anodes. It was found that cells using the modified separators resulted in a smooth Li surface and a stable “electrode–electrolyte” interface. On the one hand, platinum nanolayers can enhance the mechanical properties and micro-structures of commercial polypropylene separators. On the other hand, platinum nanolayers provide stable Li deposition during repeated charging/discharging by a bidirectional growth mechanism. After long-time cycling, the dendrites from opposite directions and dead Li are integrated into a flat and dense new-formed Li anode, decreasing the risk of low Coulombic efficiency and cycling instability that may end in cell failure. This design may provide new ideas in next-generation energy storage systems for advanced stable metallic battery technologies. |
format | Online Article Text |
id | pubmed-9079675 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90796752022-05-09 A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator Wen, Kaihua Liu, Lili Chen, Shimou Zhang, Suojiang RSC Adv Chemistry The issue of uncontrollable Li dendrite growth, caused by irregular lithium deposition, restricts the wide applications of Li metal based high energy batteries. In this paper, a polypropylene separator with a sputtered platinum nanolayer has been developed to improve the stability of the Li metal anodes. It was found that cells using the modified separators resulted in a smooth Li surface and a stable “electrode–electrolyte” interface. On the one hand, platinum nanolayers can enhance the mechanical properties and micro-structures of commercial polypropylene separators. On the other hand, platinum nanolayers provide stable Li deposition during repeated charging/discharging by a bidirectional growth mechanism. After long-time cycling, the dendrites from opposite directions and dead Li are integrated into a flat and dense new-formed Li anode, decreasing the risk of low Coulombic efficiency and cycling instability that may end in cell failure. This design may provide new ideas in next-generation energy storage systems for advanced stable metallic battery technologies. The Royal Society of Chemistry 2018-04-09 /pmc/articles/PMC9079675/ /pubmed/35541223 http://dx.doi.org/10.1039/c8ra02140f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Wen, Kaihua Liu, Lili Chen, Shimou Zhang, Suojiang A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title | A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title_full | A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title_fullStr | A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title_full_unstemmed | A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title_short | A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
title_sort | bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9079675/ https://www.ncbi.nlm.nih.gov/pubmed/35541223 http://dx.doi.org/10.1039/c8ra02140f |
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