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

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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.

关键词：

lithium-ion battery 3D structure Si/C composites in situ scanning electron microscopy (SEM)

作者机构：

[ 1 ] [Shi, Huifeng]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 2 ] [Liu, Xianqiang]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 3 ] [Wu, Rui]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 4 ] [Li, Yonghe]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 5 ] [Cheng, Xiaopeng]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 6 ] [Zhang, Yuefei]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 7 ] [Zheng, Yijing]Karlsruhe Inst Technol, Inst Appl Mat IAM AWP, D-76313 Karlsruhe, Germany
[ 8 ] [Pfleging, Wilhelm]Karlsruhe Inst Technol, Inst Appl Mat IAM AWP, D-76313 Karlsruhe, Germany
[ 9 ] [Pfleging, Wilhelm]KNMF, D-76344 Karlsruhe, Germany

通讯作者信息：

张跃飞
[Zhang, Yuefei]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China;;[Pfleging, Wilhelm]Karlsruhe Inst Technol, Inst Appl Mat IAM AWP, D-76313 Karlsruhe, Germany;;[Pfleging, Wilhelm]KNMF, D-76344 Karlsruhe, Germany

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