A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDO...A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the coating of primary NMC particles significantly reduces the stress generation by efficiently accommodating the volume change associated with the lithium diffusion,and the coating layer plays roles both as a cushion against the volume change and a channel for the lithium transport,promoting the lithium distribution across the secondary particles more homogeneously.Besides,the lower stiffness,higher ionic conductivity,and larger thickness of the coating layer improve the stress mitigation.This paper provides a mathematical framework for calculating the chemo-mechanical responses of anisotropic electrode materials and fundamental insights into how the coating of NMC active particles mitigates stress levels.展开更多
Springer出版公司2008年出版了Lee、Gordon和Büring主编的论文集《话题与焦点：从跨语言的视角审视语义与语调》（Topic and Focus：Cross-Linguistic Perspectives on Meaningand Intonation）,共14篇论文,由语义和语调领域的代...Springer出版公司2008年出版了Lee、Gordon和Büring主编的论文集《话题与焦点：从跨语言的视角审视语义与语调》（Topic and Focus：Cross-Linguistic Perspectives on Meaningand Intonation）,共14篇论文,由语义和语调领域的代表学者探讨了9种语言中话题与焦点的标记、语义和功能。展开更多
基金the National Research Foundation of Korea(Nos.2018R1A5A7023490 and 2022R1A2C1003003)。
文摘A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the coating of primary NMC particles significantly reduces the stress generation by efficiently accommodating the volume change associated with the lithium diffusion,and the coating layer plays roles both as a cushion against the volume change and a channel for the lithium transport,promoting the lithium distribution across the secondary particles more homogeneously.Besides,the lower stiffness,higher ionic conductivity,and larger thickness of the coating layer improve the stress mitigation.This paper provides a mathematical framework for calculating the chemo-mechanical responses of anisotropic electrode materials and fundamental insights into how the coating of NMC active particles mitigates stress levels.
文摘Springer出版公司2008年出版了Lee、Gordon和Büring主编的论文集《话题与焦点：从跨语言的视角审视语义与语调》（Topic and Focus：Cross-Linguistic Perspectives on Meaningand Intonation）,共14篇论文,由语义和语调领域的代表学者探讨了9种语言中话题与焦点的标记、语义和功能。
