کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7732480 | 1497947 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
X-ray microtomography characterization of Sn particle evolution during lithiation/delithiation in lithium ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, we investigate Tin (Sn) as a high capacity Li+ host material and perform an ex situ study with X-ray microtomography characterizing in three-dimensions (3D) Sn particle deformation during the crucial first cycles of lithiation/delithiation. We combine in-house algorithms with commercial software to develop 3D visualizations and measurements showing radial particle fracture, non-uniform lithiation of Sn particles, and a link between the global change in image intensity and loss of capacity. Particle size dependent “effective” volume expansion between 200% and 450% was measured during lithiation, and effective volume reductions of 50% were measured during delithiation. Relationships between the gray scale intensity change, volumetric expansion and particle size during the first cycle are also illustrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 285, 1 July 2015, Pages 205-209
Journal: Journal of Power Sources - Volume 285, 1 July 2015, Pages 205-209
نویسندگان
Joseph Gonzalez, Ke Sun, Meng Huang, Shen Dillon, Ioannis Chasiotis, John Lambros,