Enhancement of Lithium Anode Cyclability in Propylene Carbonate Electrolyte by C02Addition and Its Protective Effect Against H20 Impurity

Tetsuya Osaka, Toshiyuki Momma, Takayuki Taiima, Yasuhiro Matsumoto

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

The charge-discharge behavior of a lithium metal anode in propylene carbonate (PC) electrolyte containing added C02 was investigated using in situ ac impedance measurements during galvanostatic cycling. In PC electrolyte with C02, the anode's cycle life was twice as long and its charge transfer resistance was smaller than in the same electrolyte without C02. These enhancements are observed only when lithium is electrodeposited in the presence of C02 on nickel substrate; the enhancement does not occur when lithium is deposited without C02 and is cycled with C02. Even large amounts of H20 in the electrolyte during cycling do not adversely affect the cycle life enhancement by C02. The C02 enhancement seems to be due to products formed by reaction of lithium with C02 on the electrodeposited lithium surface.

Original languageEnglish
Pages (from-to)1057-1060
Number of pages4
JournalJournal of the Electrochemical Society
Volume142
Issue number4
DOIs
Publication statusPublished - 1995

Fingerprint

propylene
Lithium
Electrolytes
Propylene
Carbonates
carbonates
Anodes
anodes
lithium
electrolytes
Impurities
impurities
augmentation
cycles
Life cycle
impedance measurement
Nickel
Charge transfer
Metals
charge transfer

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

Cite this

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abstract = "The charge-discharge behavior of a lithium metal anode in propylene carbonate (PC) electrolyte containing added C02 was investigated using in situ ac impedance measurements during galvanostatic cycling. In PC electrolyte with C02, the anode's cycle life was twice as long and its charge transfer resistance was smaller than in the same electrolyte without C02. These enhancements are observed only when lithium is electrodeposited in the presence of C02 on nickel substrate; the enhancement does not occur when lithium is deposited without C02 and is cycled with C02. Even large amounts of H20 in the electrolyte during cycling do not adversely affect the cycle life enhancement by C02. The C02 enhancement seems to be due to products formed by reaction of lithium with C02 on the electrodeposited lithium surface.",
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T1 - Enhancement of Lithium Anode Cyclability in Propylene Carbonate Electrolyte by C02Addition and Its Protective Effect Against H20 Impurity

AU - Osaka, Tetsuya

AU - Momma, Toshiyuki

AU - Taiima, Takayuki

AU - Matsumoto, Yasuhiro

PY - 1995

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AB - The charge-discharge behavior of a lithium metal anode in propylene carbonate (PC) electrolyte containing added C02 was investigated using in situ ac impedance measurements during galvanostatic cycling. In PC electrolyte with C02, the anode's cycle life was twice as long and its charge transfer resistance was smaller than in the same electrolyte without C02. These enhancements are observed only when lithium is electrodeposited in the presence of C02 on nickel substrate; the enhancement does not occur when lithium is deposited without C02 and is cycled with C02. Even large amounts of H20 in the electrolyte during cycling do not adversely affect the cycle life enhancement by C02. The C02 enhancement seems to be due to products formed by reaction of lithium with C02 on the electrodeposited lithium surface.

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