Investigating the effect of lithiation on polycrystalline NMC811 Li-ion battery cathode cracking using in situ SEM micromechanical testing

Aigerim Omirkhan; Oriol Gavalda‐Diaz; Siyang Wang; Ifan E. L. Stephens; Finn Giuliani; Mary P. Ryan

doi:10.1039/d5ee00976f

January 1, 2025Energy & Environmental ScienceOpen Access

Investigating the effect of lithiation on polycrystalline NMC811 Li-ion battery cathode cracking using in situ SEM micromechanical testing

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Key Points

Significant reduction in NMC811 cathode particle strength was observed during lithiation, impacting battery performance.
The study shows that during electrochemical cycling, mechanical degradation was notably higher in polycrystalline structures.
In situ micromechanical testing methods, including powder compression and nanoindentation, were utilized to assess the material properties.
Findings suggest mechanical stability is critical for the performance and longevity of Li-ion batteries in practical applications.

Implication

Micromechanical testing reveals significant reduction in NMC811 cathode strength during lithiation, indicating crucial insights for Li-ion battery longevity.

Abstract

The mechanical degradation of polycrystalline NMC811 cathode particles during electrochemical cycling was investigated using in situ powder compression and nanoindentation. The research demonstrates a significant reduction in particle strength upon...

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Cite This Study

Omirkhan et al. (2025) studied this question.

synapsesocial.com/papers/68d461d231b076d99fa616aa https://doi.org/10.1039/d5ee00976f

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Investigating the effect of lithiation on polycrystalline NMC811 Li-ion battery cathode cracking using in situ SEM micromechanical testing

Key Points

Implication

Abstract

Discussion

Cite This Study

Investigating the effect of lithiation on polycrystalline NMC811 Li-ion battery cathode cracking using in situ SEM micromechanical testing

Key Points

Implication

Abstract

Discussion

Cite This Study

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