Electrochemical behavior of Li-powder anode in high Li capacity used

Shin Kook Kong, Bok Ki Kim, Woo Young Yoon

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The prevention of Li dendrite growth in Li-metal secondary cells is investigated using high-Li-content electrodes. Li powder is formed using droplet emulsions, and the powder is then used to fabricate porous Li-powder electrodes that are tested against Li-foil electrodes. Scanning electron microscopy results show that dendrites form in a Li-foil cell when the cell is charged and discharged to 25% of the theoretical Li capacity (965 mAhg-1) at 1/3 C-rate (5mAcm-2). This dendrite formation causes cell failure after 10 cycles. No dendrites are observed in the Li-powder cell tested for 250 cycles. Li-powder anodes can be used directly in high-capacity cells such as Li-air or Li-S cells.

Original languageEnglish
Pages (from-to)A1551-A1553
JournalJournal of the Electrochemical Society
Volume159
Issue number9
DOIs
Publication statusPublished - 2012

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Electrochemical behavior of Li-powder anode in high Li capacity used'. Together they form a unique fingerprint.

  • Cite this