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In Situ SEM Observation of Structured Si/C Anodes Reactions in an Ionic-Liquid-Based Lithium-Ion Battery

Shi, Huifeng; Liu, Xianqiang; Wu, Rui; Zheng, Yijing; Li, Yonghe; Cheng, Xiaopeng; Pfleging, Wilhelm; Zhang, Yuefei

Abstract:
In situ scanning electron microscopy (SEM) offers a good way to investigate the structural evolution during lithiation and delithiation processes. In this paper, the dynamical morphological evolution of 3D-line-structured/unstructured Si/C composite electrodes was observed by in situ SEM. The investigation revealed the microstructural origin of large charge capacity for 3D-line-structured anodes. Based on this proposed mechanism, a coarse optimization of 3D-line-structured anodes was proposed. These results shed light on the unique advantages of using an in situ SEM technique when studying realistic bulk batteries and designing 3D electrode structures.

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Verlagsausgabe §
DOI: 10.5445/IR/1000094192
Veröffentlicht am 03.05.2019
Originalveröffentlichung
DOI: 10.3390/app9050956
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Coverbild
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2076-3417
KITopen-ID: 1000094192
Erschienen in Applied Sciences
Band 9
Heft 5
Seiten Article no: 956
Vorab online veröffentlicht am 06.03.2019
Nachgewiesen in Scopus
Web of Science
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