In suit observation and evaluation of electrodeposited lithium by means of optical microscopy with alternating current impedance spectroscopy

Tetsuya Osaka, Toshiyuki Momma, Ken Nishimura, Takayuki Tajima

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Electrodeposited lithium was evaluated by ac impedance measurement and optical microscopy in two solutions containing LiClO4; a propylene carbonate (PC) solution and a blended solution consisting of PC and 1,2-dimethoxyethane (DME) (volume ratio=1.1). The ac impedance data analyzed in the higher frequency region, where the charge-transfer resistance (Rct) of Li++e-⇔ Li can be evaluated. The value of Rct was always larger in the PC electrolyte solution than in the PPC-DME(1:1) electrolyte solution, and Rct depended on the lithium deposition charge. Microscopic observation indicated that lithium deposited more uniformly in PC-DME (1:1) than in PC solution. The results of morphological evaluation of the electrodeposited lithium using optical microscopy corresponded to the variations in the value of Rct obtained from ac impedance measurements.

Original languageEnglish
Pages (from-to)2745-2748
Number of pages4
JournalJournal of the Electrochemical Society
Volume140
Issue number10
Publication statusPublished - 1993 Oct

Fingerprint

Lithium
Optical microscopy
propylene
alternating current
lithium
Propylene
Spectroscopy
impedance
Carbonates
carbonates
microscopy
evaluation
spectroscopy
impedance measurement
Electrolytes
electrolytes
Charge transfer
charge transfer
propylene carbonate
1,2-dimethoxyethane

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

@article{ccc2753af0234b5386c704a74ec83b7c,
title = "In suit observation and evaluation of electrodeposited lithium by means of optical microscopy with alternating current impedance spectroscopy",
abstract = "Electrodeposited lithium was evaluated by ac impedance measurement and optical microscopy in two solutions containing LiClO4; a propylene carbonate (PC) solution and a blended solution consisting of PC and 1,2-dimethoxyethane (DME) (volume ratio=1.1). The ac impedance data analyzed in the higher frequency region, where the charge-transfer resistance (Rct) of Li++e-⇔ Li can be evaluated. The value of Rct was always larger in the PC electrolyte solution than in the PPC-DME(1:1) electrolyte solution, and Rct depended on the lithium deposition charge. Microscopic observation indicated that lithium deposited more uniformly in PC-DME (1:1) than in PC solution. The results of morphological evaluation of the electrodeposited lithium using optical microscopy corresponded to the variations in the value of Rct obtained from ac impedance measurements.",
author = "Tetsuya Osaka and Toshiyuki Momma and Ken Nishimura and Takayuki Tajima",
year = "1993",
month = "10",
language = "English",
volume = "140",
pages = "2745--2748",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "10",

}

TY - JOUR

T1 - In suit observation and evaluation of electrodeposited lithium by means of optical microscopy with alternating current impedance spectroscopy

AU - Osaka, Tetsuya

AU - Momma, Toshiyuki

AU - Nishimura, Ken

AU - Tajima, Takayuki

PY - 1993/10

Y1 - 1993/10

N2 - Electrodeposited lithium was evaluated by ac impedance measurement and optical microscopy in two solutions containing LiClO4; a propylene carbonate (PC) solution and a blended solution consisting of PC and 1,2-dimethoxyethane (DME) (volume ratio=1.1). The ac impedance data analyzed in the higher frequency region, where the charge-transfer resistance (Rct) of Li++e-⇔ Li can be evaluated. The value of Rct was always larger in the PC electrolyte solution than in the PPC-DME(1:1) electrolyte solution, and Rct depended on the lithium deposition charge. Microscopic observation indicated that lithium deposited more uniformly in PC-DME (1:1) than in PC solution. The results of morphological evaluation of the electrodeposited lithium using optical microscopy corresponded to the variations in the value of Rct obtained from ac impedance measurements.

AB - Electrodeposited lithium was evaluated by ac impedance measurement and optical microscopy in two solutions containing LiClO4; a propylene carbonate (PC) solution and a blended solution consisting of PC and 1,2-dimethoxyethane (DME) (volume ratio=1.1). The ac impedance data analyzed in the higher frequency region, where the charge-transfer resistance (Rct) of Li++e-⇔ Li can be evaluated. The value of Rct was always larger in the PC electrolyte solution than in the PPC-DME(1:1) electrolyte solution, and Rct depended on the lithium deposition charge. Microscopic observation indicated that lithium deposited more uniformly in PC-DME (1:1) than in PC solution. The results of morphological evaluation of the electrodeposited lithium using optical microscopy corresponded to the variations in the value of Rct obtained from ac impedance measurements.

UR - http://www.scopus.com/inward/record.url?scp=0027677719&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027677719&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0027677719

VL - 140

SP - 2745

EP - 2748

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 10

ER -