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 journalArticlepeer-review

114 Citations (Scopus)


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
Issue number4
Publication statusPublished - 1995 Apr

ASJC Scopus subject areas

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


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