Characteristics of a Li/MnO2 battery using a lithium powder anode at high-rate discharge

M. S. Park, W. Y. Yoon

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The characteristics of lithium/manganese-dioxide cells using Li powder or Li foil as the negative electrode (anode) are compared at high-rate discharge. Lithium powders with a mean diameter of 20 μm are produced by forming a dispersion of molten Li metal in inorganic carrier fluids. Cells using Li powder anodes show larger capacity and lower internal resistance than cells using Li foil anodes. Based on BET (Brunauer-Emmett-Teller) measurements, a reduction of effective current density due to the large surface area of the Li powder is considered to be responsible for the superior higher-rate discharge characteristics.

Original languageEnglish
Pages (from-to)237-243
Number of pages7
JournalJournal of Power Sources
Volume114
Issue number2
DOIs
Publication statusPublished - 2003 Mar 12

Keywords

  • Capacity
  • High-rate discharge
  • Impedance
  • Lithium battery
  • Lithium powder
  • Manganese dioxide

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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