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

研究成果: Article査読

114 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1057-1060
ページ数4
ジャーナルJournal of the Electrochemical Society
142
4
DOI
出版ステータスPublished - 1995 4

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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