期刊
JOURNAL OF POWER SOURCES
卷 245, 期 -, 页码 678-683出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.06.158
关键词
Li-ion battery; In operando studies; Fatigue effect; Spatial lithium distribution; Neutron powder diffraction; Neutron radiography and tomography
资金
- Deutsche Forschungsgemeinschaft (Research Collaborative Centre 595 Electrical Fatigue in Functional Materials)
Spatially-resolved neutron diffraction has been applied to probe the lithium distribution in radial direction of a commercial Li-ion cell of 18650-type. The spatial evolution of selected Bragg reflections for LiCoO2 (positive electrode, cathode) and graphite and lithium intercalated graphite (negative electrode, anode) was observed and evaluated by taking beam attenuation and cell geometry effects into account. No evidences for lithium inhomogeneities have been found for the investigated set of cells. Computed neutron tomography using a monochromatic neutron beam confirmed the homogeneous lithium distribution. The relevance of the monochromatic beam to neutron imaging studies of Li-ion cells is discussed. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据