Electrochemistry in ultrahigh vacuum. Intercalation of lithium into the basal plane of highly oriented pyrolytic graphite from a poly(ethylene oxide)/LiClO4 solid polymer electrolyte

Y. Gofer, R. Barbour, Y. Luo, D. A. Tryk, J. Jayne, G. Chottiner, Daniel Alberto Scherson

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The electrochemical insertion of lithium into the basal plane of highly ordered pyrolytic graphite (HOPG-(bp)) from a LiClO4/PEO solid polymer electrolyte has been examined in ultrahigh vacuum (UHV) using a carefully designed electrochemical cell. On the basis of a comparison of the data obtained with those recorded for the same interfacial system in an inert gas at atmospheric pressure, it has been concluded that the electrochemical behavior observed in UHV is indeed characteristic of the Li/LiClO4(PEO)/(HOPG(bp) system and therefore not affected in any discernible way by the ultralow pressures. Coulometric analysis of cyclic voltammetry experiments showed that the charge associated with lithium intercalation is larger than that observed during subsequent deintercalation, particularly during the first few intercalation-deintercalation cycles. However, the total amount of impurities observed in Auger electron spectra of emersed HOPG(bp) surfaces following lithium intercalation was very low. This last finding is inconsistent with the presence of a film of any significant thickness on the surface, suggesting that the charge imbalance for this interface is due to kinetic hindrances during lithium deintercalation.

Original languageEnglish
Pages (from-to)11797-11800
Number of pages4
JournalJournal of physical chemistry
Volume99
Issue number31
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

Fingerprint

Graphite
pyrolytic graphite
Ultrahigh vacuum
Electrochemistry
electrochemistry
Intercalation
ethylene oxide
Polyethylene oxides
Lithium
intercalation
Electrolytes
ultrahigh vacuum
Polymers
lithium
electrolytes
polymers
Noble Gases
Electrochemical cells
electrochemical cells
Inert gases

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

Electrochemistry in ultrahigh vacuum. Intercalation of lithium into the basal plane of highly oriented pyrolytic graphite from a poly(ethylene oxide)/LiClO4 solid polymer electrolyte. / Gofer, Y.; Barbour, R.; Luo, Y.; Tryk, D. A.; Jayne, J.; Chottiner, G.; Scherson, Daniel Alberto.

In: Journal of physical chemistry, Vol. 99, No. 31, 01.01.1995, p. 11797-11800.

Research output: Contribution to journalArticle

@article{a7995fcb50c64d26a6a6f364bf744a50,
title = "Electrochemistry in ultrahigh vacuum. Intercalation of lithium into the basal plane of highly oriented pyrolytic graphite from a poly(ethylene oxide)/LiClO4 solid polymer electrolyte",
abstract = "The electrochemical insertion of lithium into the basal plane of highly ordered pyrolytic graphite (HOPG-(bp)) from a LiClO4/PEO solid polymer electrolyte has been examined in ultrahigh vacuum (UHV) using a carefully designed electrochemical cell. On the basis of a comparison of the data obtained with those recorded for the same interfacial system in an inert gas at atmospheric pressure, it has been concluded that the electrochemical behavior observed in UHV is indeed characteristic of the Li/LiClO4(PEO)/(HOPG(bp) system and therefore not affected in any discernible way by the ultralow pressures. Coulometric analysis of cyclic voltammetry experiments showed that the charge associated with lithium intercalation is larger than that observed during subsequent deintercalation, particularly during the first few intercalation-deintercalation cycles. However, the total amount of impurities observed in Auger electron spectra of emersed HOPG(bp) surfaces following lithium intercalation was very low. This last finding is inconsistent with the presence of a film of any significant thickness on the surface, suggesting that the charge imbalance for this interface is due to kinetic hindrances during lithium deintercalation.",
author = "Y. Gofer and R. Barbour and Y. Luo and Tryk, {D. A.} and J. Jayne and G. Chottiner and Scherson, {Daniel Alberto}",
year = "1995",
month = "1",
day = "1",
doi = "10.1021/j100031a001",
language = "English",
volume = "99",
pages = "11797--11800",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "31",

}

TY - JOUR

T1 - Electrochemistry in ultrahigh vacuum. Intercalation of lithium into the basal plane of highly oriented pyrolytic graphite from a poly(ethylene oxide)/LiClO4 solid polymer electrolyte

AU - Gofer, Y.

AU - Barbour, R.

AU - Luo, Y.

AU - Tryk, D. A.

AU - Jayne, J.

AU - Chottiner, G.

AU - Scherson, Daniel Alberto

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The electrochemical insertion of lithium into the basal plane of highly ordered pyrolytic graphite (HOPG-(bp)) from a LiClO4/PEO solid polymer electrolyte has been examined in ultrahigh vacuum (UHV) using a carefully designed electrochemical cell. On the basis of a comparison of the data obtained with those recorded for the same interfacial system in an inert gas at atmospheric pressure, it has been concluded that the electrochemical behavior observed in UHV is indeed characteristic of the Li/LiClO4(PEO)/(HOPG(bp) system and therefore not affected in any discernible way by the ultralow pressures. Coulometric analysis of cyclic voltammetry experiments showed that the charge associated with lithium intercalation is larger than that observed during subsequent deintercalation, particularly during the first few intercalation-deintercalation cycles. However, the total amount of impurities observed in Auger electron spectra of emersed HOPG(bp) surfaces following lithium intercalation was very low. This last finding is inconsistent with the presence of a film of any significant thickness on the surface, suggesting that the charge imbalance for this interface is due to kinetic hindrances during lithium deintercalation.

AB - The electrochemical insertion of lithium into the basal plane of highly ordered pyrolytic graphite (HOPG-(bp)) from a LiClO4/PEO solid polymer electrolyte has been examined in ultrahigh vacuum (UHV) using a carefully designed electrochemical cell. On the basis of a comparison of the data obtained with those recorded for the same interfacial system in an inert gas at atmospheric pressure, it has been concluded that the electrochemical behavior observed in UHV is indeed characteristic of the Li/LiClO4(PEO)/(HOPG(bp) system and therefore not affected in any discernible way by the ultralow pressures. Coulometric analysis of cyclic voltammetry experiments showed that the charge associated with lithium intercalation is larger than that observed during subsequent deintercalation, particularly during the first few intercalation-deintercalation cycles. However, the total amount of impurities observed in Auger electron spectra of emersed HOPG(bp) surfaces following lithium intercalation was very low. This last finding is inconsistent with the presence of a film of any significant thickness on the surface, suggesting that the charge imbalance for this interface is due to kinetic hindrances during lithium deintercalation.

UR - http://www.scopus.com/inward/record.url?scp=0029634657&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029634657&partnerID=8YFLogxK

U2 - 10.1021/j100031a001

DO - 10.1021/j100031a001

M3 - Article

VL - 99

SP - 11797

EP - 11800

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 31

ER -