کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7540037 | 1489004 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
3D-cathode design with foam-like aluminum current collector for high energy density lithium-ion batteries
ترجمه فارسی عنوان
طراحی کاتد سه بعدی با جمع آوری فوم مانند جریان آلومینیوم برای باتری های لیتیوم یون با تراکم انرژی بالا
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
باتری لیتیوم یون، جمع کنونی، فوم آلومینیوم، تراکم انرژی، ضخامت الکترودها،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Increasing the area specific capacity and reducing the inactive/active material ratio of cathodes and anodes is considered to be a promising approach to improve the energy density of lithium-ion batteries. In principle, this can be achieved by increasing the thickness and the active material mass loading of the electrodes. However, the fabrication of thick electrodes with good electrochemical performance is challenging regarding the drying process, mechanical stability, electronic conductivity, etc. The application of Al-foams as current collector provides a 3D electronic conductive network, which can host high loadings of active material combined with high mechanical stability. Herein, we demonstrate a slurry infiltration process capable to fabricate cathodes with high active material loading. A variety of LiNi1/3Mn1/3Co1/3O2 (NMC111) based cathodes with thicknesses up to 260â¯Î¼m and area specific capacities high as 7â¯mAhâ¯cmâ2 are investigated comprehensively. The electrodes exhibit good cycle life and rate capability performance due to the unique 3D current collector concept. Even at the 2.0C discharge rate, an area specific capacity of 2.3â¯mAhâ¯cmâ2 is obtained, which is high in comparison to conventional Al-foil concepts. The design freedom of the presented approach is illustrated by the fabrication of cathodes optimized for high rate capability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Energy Storage - Volume 16, April 2018, Pages 125-132
Journal: Journal of Energy Storage - Volume 16, April 2018, Pages 125-132
نویسندگان
M. Fritsch, G. Standke, C. Heubner, U. Langklotz, A. Michaelis,