Visualization and Quantification of State of Charge-Dependent Young’s Modulus of LiMn2O4 Nanosized Particles by Bimodal AFM
Pengtao Lou,
Zhuanfang Bi,
Xinru Wang
et al.
Abstract:Mechanical damage of LiMn 2 O 4 active material caused by volume change, phase transition, and lithium diffusion-induced stress is the main degradation mechanism in lithium-ion batteries. Young's modulus is a key parameter of mechanical property, and its variation with lithium content x or state of charge (SOC) at the nanoscale is an important issue because such variation may have influences on the stress level and lithium-ion transport. In this study, we successfully developed bimodal atomic force microscopy … Show more
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