Critical Grain Size for Microcracking During Lithium Insertion

Abstract

I derived a critical grain size below which microcracking does not occur based on volume changes as a result of Li charging into brittle Li-alloys. The predicted critical grain size is less than the unit cell size for a majority of single-phase materials. This suggests that decreasing the particle and/or grain size is not a practical solution for solving the mechanical instability problem of Li-alloys.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1998
Accession Number
ADA358860

Entities

People

  • Jeff Wolfenstine

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Alloys
  • Cell Size
  • Cells
  • Electrochemical Energy Storage
  • Energy
  • Energy Storage
  • Equations
  • Fuel Cells
  • Grain Size
  • Instability
  • Materials
  • Microcracking
  • Military Research
  • Modulus Of Elasticity
  • New York
  • Particles

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.