.png){kind=icon}
返回
Growth of the solid-electrolyte interphase: Electron diffusion versus solvent diffusion
.png){kind=icon}
OA
AI
DOI：10.1016/j.jpowsour.2023.232651.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The solid-electrolyte interphase (SEI) substantially influences the lifetime of lithium-ion batteries. Nevertheless, the transport mechanism responsible for the long-term growth of the SEI remains controversial. This study aims at discussing the characteristic time and state-of-charge dependence of SEI growth mediated by electron diffusion versus solvent diffusion. We describe both transport mechanisms with continuum models and compare them to experimental results. We show that electron diffusion can explain both the observed state-of-charge dependence and the time dependence. In contrast, we demonstrate that solvent diffusion can reproduce either the state-of-charge dependence or the time dependence of capacity fade. There is no intermediate regime where solvent diffusion can explain both dependencies simultaneously. Furthermore, we emphasize the crucial role of anode voltage and state-of-charge on SEI growth in general. Due to self-discharge, this dependence can explain deviations from the typical square-root behavior in the time domain. We conclude that electron diffusion is the relevant process leading to the state-of-charge dependent SEI growth. Further experiments are needed to investigate the reason for contributions to the capacity fade that are independent of the state-of-charge.
Keyword:
Lithium-ion batteries
Solid-electrolyte interphase (SEI)
Battery aging and degradation
SEI growth
Diffusion mechanisms
SOC and time dependence
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
7.9
论文数:
3.7W
被引数:
15.0W
机构
引用论文
Electrochemical Kinetics of SEI Growth on Carbon Black: Part II. ModelingSEI在炭黑上生长的电化学动力学: 第二部分。建模OAAI
OAAI分享收藏The state of understanding of the lithium-ion-battery graphite solid electrolyte interphase (SEI) and its relationship to formation cycling锂离子电池石墨固体电解质界面 (SEI) 的理解状态及其与形成循环的关系.png)
CARBONOAAI
CARBONIF11.6
OAAI分享收藏Toward a Mechanistic Model of Solid-Electrolyte Interphase Formation and Evolution in Lithium-Ion Batteries迈向锂离子电池中固体电解质相间形成和演化的机理模型ACS ENERGY LETTERS
OAAI
ACS ENERGY LETTERSIF18.2
OAAI分享收藏The Solid Electrolyte Interphase - The Most Important and the Least Understood Solid Electrolyte in Rechargeable Li Batteries固体电解质界面-可充电锂电池中最重要和最不了解的固体电解质
PREAI
分享收藏Solid-Electrolyte Interphase During Battery Cycling: Theory of Growth Regimes电池循环过程中的固体电解质界面: 生长机制的理论CHEMSUSCHEMOAAI
CHEMSUSCHEMIF6.6
OAAI分享收藏Review and Performance Comparison of Mechanical-Chemical Degradation Models for Lithium-Ion Batteries锂离子电池机械化学降解模型的综述和性能比较OAAI
OAAI分享收藏Insight into SEI Growth in Li-Ion Batteries using Molecular Dynamics and Accelerated Chemical Reactions利用分子动力学和加速化学反应洞察锂离子电池中的SEI增长OAAI
OAAI分享收藏Physically-based reduced-order capacity loss model for graphite anodes in Li-ion battery cells基于物理的锂离子电池单元石墨阳极降阶容量损失模型OAAI
OAAI分享收藏Defect Thermodynamics and Diffusion Mechanisms in Li2CO3 and Implications for the Solid Electrolyte Interphase in Li-Ion BatteriesLi2CO3中的缺陷热力学和扩散机制及其对锂离子电池中固体电解质界面的影响
PREAI
分享收藏
查看更多内容