In-situ scanning electron microscope observations of strain-confined lithium nucleation at electrode/electrolyte interfaces in all-solid-state-lithium battery

Munekazu Motoyama, Makoto Ejiri, Yasutoshi Iriyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We have studied electrochemical Li deposition/dissolution processes at amorphous solid electrolyte (LiPON) interfaces with 30-nm-thick-Cu-current collectors at different current densities by in-situ scanning electron microscopy (SEM). When the current density is smaller than 300 μA cm-2, Li islands continue to grow under a Cu film without coalescing with their neighbors. Consequently, they produce small cracks in the Cu film leading to isolated Li rod growth from the cracks. On the other hand, a current density of 1.0 mA cm-2 provokes the nucleation of Li islands with a higher number density. They rapidly coalesce under a Cu film in all lateral directions before cracking the Cu film. High current density conditions therefore suppress Li rod growths.

Original languageEnglish
Title of host publicationState-of-the-Art Developments in Materials Characterization
EditorsYunseok Kim, Dongsheng Li, Ali Passian, Rozaliya Barabash, Ulrich Lienert, Vassilia Zorba, Klaus-Dieter Liss, Klaus-Dieter Liss, Masato Ohnuma, Renato Zenobi, Arda Genc, Aude Lereu, Olga Ovchinnikova, Liane G. Benning, Jeffrey D. Rimer, Laurene Tetard, Thomas Thundat
PublisherMaterials Research Society
Pages25-30
Number of pages6
ISBN (Electronic)9781605117317
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event2014 MRS Fall Meeting - Boston, United States
Duration: Nov 30 2014Dec 5 2014

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1754
ISSN (Print)0272-9172

Other

Other2014 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston
Period11/30/1412/5/14

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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