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September 12, 2025ACS NanoOpen Access

Insights into Fast-Charge-Induced Cracking and Bulk Structural Deterioration of Ni-Rich Layered Cathodes for Lithium-Ion Batteries

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Authors

JQJingyi QuZXZhong XieIBIsobel C. Bicket

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Overview

This study reveals crack growth and structural degradation in ni-rich nmc under fast charging, suggesting new challenges for battery performance.

Key Points

  • Prolonged fast-charge cycling results in significant crack growth in both nano- and microscales.
  • Direct evidence of irreversible Li loss shows that fast charging distorts the layered structure of ni-rich nmc material.
  • A fatigue-cracking mechanism linked to Li concentration gradients is proposed as the root cause of crack formation.
  • The intragranular mixing of transition metal and Li cations exacerbates material deterioration during fast charging.

Cite This Study

Qu et al. (2025) studied this question.

synapsesocial.com/papers/68d44b2a31b076d99fa54357https://doi.org/10.1021/acsnano.5c07347
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