Correlating advanced microscopies reveals atomic-scale mechanisms limiting lithium-ion battery lifetime

The longevity of a lithium-ion battery is limited by cathode degradation. Combining atom probe tomography and scanning transmission electron microscopy reveals that the degradation results from atomic-scale irreversible structural changes once lithium leaves the cathode during charging, thereby inhi...

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Detalles Bibliográficos
Autores principales: Gault, Baptiste, Poplawsky, Jonathan D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Comment
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213749/
https://www.ncbi.nlm.nih.gov/pubmed/34145297
http://dx.doi.org/10.1038/s41467-021-24121-9
Descripción
Sumario:The longevity of a lithium-ion battery is limited by cathode degradation. Combining atom probe tomography and scanning transmission electron microscopy reveals that the degradation results from atomic-scale irreversible structural changes once lithium leaves the cathode during charging, thereby inhibiting lithium intercalation back into the cathode as the battery discharges. This information unveils possible routes for improving the lifetime of lithium-ion batteries.

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