Correlative Electron Paramagnetic Resonance Imaging and Atomic Force Microscopy of Lithium Deposited on Copper

IF 2.3 3区 化学 Q3 CHEMISTRY, PHYSICAL
Beatrice Wolff, Christian Hellenbrandt, Dr. Peter Jakes, Prof. Dr. Rüdiger-A. Eichel, Prof. Dr. Josef Granwehr, Prof. Dr. Florian Hausen
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引用次数: 0

Abstract

Anode free concepts are gaining traction in battery research. To improve cyclability, a better understanding of the deposition processes and morphologies is necessary. Correlative experiments enable a link between a variety of properties obtained, such as chemical, mechanical or electrochemical data. Here, electron paramagnetic resonance imaging (EPRI) is correlated with atomic force microscopy (AFM) to gain a deeper understanding of the microscopic topography and local stiffness at different intensities of the lithium selective EPRI map. Experiments were carried out on a sample of lithium deposited on copper foil from standard battery electrolyte. The correlation of both methods reveals that EPRI has a high sensitivity towards small lithium structures, while bulk lithium was not detected. The results demonstrate that EPRI can be used for prescreening to identify regions with different properties, which can then be analysed individually by AFM.

Abstract Image

铜上沉积锂的相关电子顺磁共振成像和原子力显微镜。
无阳极概念在电池研究中越来越受到关注。为了提高旋回性,有必要更好地了解沉积过程和形态。相关实验使所获得的各种特性,如化学、机械或电化学数据之间的联系成为可能。在这里,电子顺磁共振成像(EPRI)与原子力显微镜(AFM)相关联,以更深入地了解锂选择性EPRI图在不同强度下的微观形貌和局部刚度。在标准电池电解液的铜箔上沉积锂样品进行了实验。两种方法的相关性表明,EPRI对小锂结构具有很高的灵敏度,而没有检测到大块锂。结果表明,EPRI可以用于预筛选,以识别具有不同性质的区域,然后可以通过AFM单独分析。
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来源期刊
Chemphyschem
Chemphyschem 化学-物理:原子、分子和化学物理
CiteScore
4.60
自引率
3.40%
发文量
425
审稿时长
1.1 months
期刊介绍: ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.
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