Electrochemical Alloying of Lead in Potassium-Ion Batteries

[Image: see text] The electrochemical alloying of lead-based electrodes with potassium was investigated by galvanostatic measurements as well as by ex situ and operando X-ray diffraction. The electrochemical reduction must be activated by an initial high current pulse which prevents the passivation...

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Autores principales: Gabaudan, Vincent, Berthelot, Romain, Stievano, Lorenzo, Monconduit, Laure
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645338/
https://www.ncbi.nlm.nih.gov/pubmed/31459294
http://dx.doi.org/10.1021/acsomega.8b01369
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author Gabaudan, Vincent
Berthelot, Romain
Stievano, Lorenzo
Monconduit, Laure
author_facet Gabaudan, Vincent
Berthelot, Romain
Stievano, Lorenzo
Monconduit, Laure
author_sort Gabaudan, Vincent
collection PubMed
description [Image: see text] The electrochemical alloying of lead-based electrodes with potassium was investigated by galvanostatic measurements as well as by ex situ and operando X-ray diffraction. The electrochemical reduction must be activated by an initial high current pulse which prevents the passivation of the lead electrode. The alloying process leads to the formation of crystalline KPb. During the discharge, two intermediate phases are observed, K(10)Pb(48) and K(4)Pb(9), whereas only K(4)Pb(9) seems to form during the charge. High capacity retention is observed, with, however, a limited specific capacity value because of high weight of lead.
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spelling pubmed-66453382019-08-27 Electrochemical Alloying of Lead in Potassium-Ion Batteries Gabaudan, Vincent Berthelot, Romain Stievano, Lorenzo Monconduit, Laure ACS Omega [Image: see text] The electrochemical alloying of lead-based electrodes with potassium was investigated by galvanostatic measurements as well as by ex situ and operando X-ray diffraction. The electrochemical reduction must be activated by an initial high current pulse which prevents the passivation of the lead electrode. The alloying process leads to the formation of crystalline KPb. During the discharge, two intermediate phases are observed, K(10)Pb(48) and K(4)Pb(9), whereas only K(4)Pb(9) seems to form during the charge. High capacity retention is observed, with, however, a limited specific capacity value because of high weight of lead. American Chemical Society 2018-09-28 /pmc/articles/PMC6645338/ /pubmed/31459294 http://dx.doi.org/10.1021/acsomega.8b01369 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Gabaudan, Vincent
Berthelot, Romain
Stievano, Lorenzo
Monconduit, Laure
Electrochemical Alloying of Lead in Potassium-Ion Batteries
title Electrochemical Alloying of Lead in Potassium-Ion Batteries
title_full Electrochemical Alloying of Lead in Potassium-Ion Batteries
title_fullStr Electrochemical Alloying of Lead in Potassium-Ion Batteries
title_full_unstemmed Electrochemical Alloying of Lead in Potassium-Ion Batteries
title_short Electrochemical Alloying of Lead in Potassium-Ion Batteries
title_sort electrochemical alloying of lead in potassium-ion batteries
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645338/
https://www.ncbi.nlm.nih.gov/pubmed/31459294
http://dx.doi.org/10.1021/acsomega.8b01369
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