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000865870 1001_ $$0P:(DE-Juel1)169433$$aBenning, Svenja$$b0
000865870 245__ $$aDirect Observation of SEI Formation and Lithiation in Thin-Film Silicon Electrodes via in Situ Electrochemical Atomic Force Microscopy
000865870 260__ $$aWashington, DC$$bACS Publications$$c2019
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000865870 520__ $$aSilicon (Si) has been regarded as one of the most promising anode materials to fulfill the growing demand of high performance lithium-ion batteries based on its high specific capacity. However, Si is not yet capable of replacing the widely used graphite anode due to solid–electrolyte interphase (SEI) formation and extreme volume expansion during lithiation. In this work, advanced in situ electrochemical atomic force microscopy has been applied to track simultaneously the topographical evolution and mechanical properties of thin-film polycrystalline Si electrodes during SEI formation and initial lithiation. At first, a uniform flattening of the Si surface has been found, attributed to the SEI formation. This is followed by a nonuniform expansion of the individual particles upon lithiation. The experimental findings allow defining a detailed model describing the SEI layer formation and lithiation process on polycrystalline silicon thin-film electrodes. Our results support further research investigations on this promising material.
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000865870 536__ $$0G:(DE-Juel1)HITEC-20170406$$aHITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406)$$cHITEC-20170406$$x1
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000865870 7001_ $$0P:(DE-Juel1)172735$$aChen, Chunguang$$b1$$eCorresponding author
000865870 7001_ $$0P:(DE-Juel1)156123$$aEichel, Rüdiger-A.$$b2
000865870 7001_ $$0P:(DE-Juel1)165918$$aNotten, Peter H. L.$$b3
000865870 7001_ $$0P:(DE-Juel1)167581$$aHausen, Florian$$b4
000865870 773__ $$0PERI:(DE-600)2916551-9$$a10.1021/acsaem.9b01222$$gVol. 2, no. 9, p. 6761 - 6767$$n9$$p6761 - 6767$$tACS applied energy materials$$v2$$x2574-0962$$y2019
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000865870 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)165918$$a TU Eindhoven$$b3
000865870 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)165918$$aUniverstiy of Technology, Sydney $$b3
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000865870 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)167581$$aSection JARA-Energy $$b4
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000865870 9141_ $$y2019
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