Tracking structural evolution in lithium-ion batteries via operando scanning electron microscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0199283" target="_blank" >RIV/00216305:26220/26:0199283 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ensm.2025.104516" target="_blank" >https://doi.org/10.1016/j.ensm.2025.104516</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ensm.2025.104516" target="_blank" >10.1016/j.ensm.2025.104516</a>

Result language

angličtina

Original language name

Tracking structural evolution in lithium-ion batteries via operando scanning electron microscopy

Original language description

The comprehensive understanding of structural-performance correlation of lithium-ion batteries is paramount for optimizing their performance, safety, and longevity, which are critical for applications such as portable electronics, electric vehicles, and renewable energy storage systems. Scanning Electron Microscopy (SEM) is instrumental in the examination of lithium-ion batteries, offering high-resolution imaging and detailed insights into the battery microstructure and morphology. Operando SEM analyses are invaluable as they provide precise descriptions of the dynamic phenomena and structural temporal evolution within the battery. However, the application of SEM for operando analyses is hindered by the challenges in the preparation of samples that can deliver practical electrochemical performance within the SEM environment. In this manuscript, we introduce an operando SEM workflow that enables high-resolution analysis of structural evolution in lithium-ion batteries from electrode level to particle level. The efficacy of this system and workflow is demonstrated on lithium nickel manganese cobalt oxide (NMC) and lithium titanium oxide (LTO) battery cells revealing electrode expansion and contraction, as well as grain cracking. Additionally, a graphite-lithium metal system is analyzed, where expansion and cracking of graphite grains were observed. The study delineates a procedure enabling the investigation from entire electrodes change at hundreds of micron level or even larger cell components to submicron changes at the granular level, applicable across various chemistries. We propose that this workflow can offer valuable insights for both fundamental research at the materials development level and cell structure optimization in manufacturing environments.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Energy Storage Materials

ISSN

2405-8297

e-ISSN

2405-8289

Volume of the periodical

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Issue of the periodical within the volume

81

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

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UT code for WoS article

001562082500001

EID of the result in the Scopus database

2-s2.0-105013648453