通过空间分辨电化学模型研究全固态聚合物陶瓷钠离子电池的性能

IF 3.1 4区 工程技术 Q2 ELECTROCHEMISTRY
F. Gerbig, A. Chauhan, S. Gietl and H. Nirschl
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引用次数: 0

摘要

可充电电池是现代能源存储的关键,其中锂离子电池在市场上占据主导地位。然而,与锂相关的稀缺性和环境问题激发了人们对替代电池化学的兴趣,尤其是利用丰富钠资源的钠离子电池(SIB)。尽管对全固态钠离子电池(ASSSIB)进行了广泛的实验研究,但理论研究主要集中在分子层面的分析,忽略了电池成分对整体性能的影响。本文旨在通过开发一种物理模型来模拟颗粒尺度的 ASSSIB,从而弥补这一不足。我们的方法包括将实验数据与模拟结果相结合,以确定影响电池性能的关键因素。研究发现,钠离子传输缓慢是一个重要瓶颈,这归因于半电池孔隙率低和电解质离子电导率有限等因素。模拟结果表明,提高快速离子传导固体电解质对增强 ASSSIB 性能非常重要。此外,研究结果表明,要达到最佳电池容量利用率,必须使用电解质活性填料含量高且厚度较小的电极。总之,这项研究强调了电极微观结构与电池性能之间错综复杂的关系,为设计和优化适合固定和移动应用的可持续钠离子电池系统提供了宝贵的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance Investigations on All-Solid-State Polymer-Ceramic Sodium-Ion Batteries through a Spatially Resolved Electrochemical Model
Rechargeable batteries are crucial in modern energy storage, with lithium-ion batteries dominating the market. However, the scarcity and environmental concerns associated with lithium have spurred interest in alternative battery chemistries, particularly sodium-ion batteries (SIBs), which utilize abundant sodium resources. Despite extensive experimental research on all-solid-state SIBs (ASSSIBs), theoretical investigations have primarily focused on molecular-level analyses, overlooking the impact of cell composition on overall performance. This paper aims to address this gap by developing a physical model for simulating ASSSIBs at the particle scale. Our methodology involves integrating experimental data with simulation results to identify key factors influencing battery performance. The study reveals slow sodium ion transport as a significant bottleneck, attributed to factors such as low porosity of the half-cell and limited electrolyte ionic conductivity. Simulation outcomes emphasize the importance of advancing fast-ion-conducting solid electrolytes to enhance ASSSIB performance. Moreover, the results suggest that electrodes with high electrolyte active filler content and reduced thickness are necessary for achieving optimal battery capacity utilization. Overall, this research underscores the intricate relationship between electrode microstructure and battery performance, offering valuable insights for the design and optimization of sustainable sodium-ion battery systems suitable for stationary and mobile applications.
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来源期刊
CiteScore
7.20
自引率
12.80%
发文量
1369
审稿时长
1.5 months
期刊介绍: The Journal of The Electrochemical Society (JES) is the leader in the field of solid-state and electrochemical science and technology. This peer-reviewed journal publishes an average of 450 pages of 70 articles each month. Articles are posted online, with a monthly paper edition following electronic publication. The ECS membership benefits package includes access to the electronic edition of this journal.
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