English

Crystallographic design of intercalation materials

Materials Science 2022-04-12 v1

Abstract

Intercalation materials are promising candidates for reversible energy storage and are, for example, used as lithium-battery electrodes, hydrogen-storage compounds, and electrochromic materials. An important issue preventing the more widespread use of these materials is that they undergo structural transformations (of up to ~10% lattice strains) during intercalation, which expand the material, nucleate microcracks, and, ultimately, lead to material failure. Besides the structural transformation of lattices, the crystallographic texture of the intercalation material plays a key role in governing ion-transport properties, generating phase separation microstructures, and elastically interacting with crystal defects. In this review, I provide an overview of how the structural transformation of lattices, phase transformation microstructures, and crystallographic defects affect the chemo-mechanical properties of intercalation materials. In each section, I identify the key challenges and opportunities to crystallographically design intercalation compounds to improve their properties and lifespans. I predominantly cite examples from the literature of intercalation cathodes used in rechargeable batteries, however, the identified challenges and opportunities are transferable to a broader range of intercalation compounds.

Keywords

Cite

@article{arxiv.2204.04525,
  title  = {Crystallographic design of intercalation materials},
  author = {Ananya Renuka Balakrishna},
  journal= {arXiv preprint arXiv:2204.04525},
  year   = {2022}
}

Comments

13 pages, 5 figures

R2 v1 2026-06-24T10:43:20.480Z