Electrolyte loss and dimensional change of the negative electrode in Li powder secondary cell

Ju Ho Chung, Woo Sung Kim, Woo Young Yoon, Sang Won Min, Byung Won Cho

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The amount of electrolyte lost in a Li powder electrode cell was measured quantitatively and compared with that in a Li foil electrode cell. The electrolyte consumption in the powder electrode cell was 30% less than that in the foil electrode cell after 50 cycles. The change in thickness of the Li electrode was also directly measured using an electro-micrometer. After 20 cycles, the variation in thickness of the powder electrode was less than 3% of its initial dimension and amounted to only 30% of that of the foil electrode. The small variation in the thickness of the electrode and small electrolyte loss were due to the porous character of the powder electrode and the stable and homogeneous SEI of the emulsified Li powders.

Original languageEnglish
Pages (from-to)191-195
Number of pages5
JournalJournal of Power Sources
Volume163
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Dec 7

Keywords

  • Electrolyte consumption
  • Lithium metal secondary cell
  • Lithium powder
  • Thickness change

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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