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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Energy Storage Materials

ISSN

2405-8297

e-ISSN

2405-8289

Svazek periodika

—

Číslo periodika v rámci svazku

81

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

001562082500001

EID výsledku v databázi Scopus

2-s2.0-105013648453