کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4990877 1368115 2018 10 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Research PaperNon-uniform effect on the thermal/aging performance of Lithium-ion pouch battery
ترجمه فارسی عنوان
اثر غیریکنواخت بر عملکرد حرارتی/پیری باتری کیسه یون لیتیوم
کلمات کلیدی
باتری لیتیوم ـ یونی؛ توزیع دما؛ پیری. غیریکنواخت؛ کارایی؛
Lithium ion battery; Temperature distribution; Aging; Non-uniform; Performance;
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی

•A new method is proposed to get more detail of resistance variation.•Effect of non-uniform aging is simulated and analyzed.•Difference of capacity between the uniform and non-uniform aging battery is explained.

Non-uniform distribution of current density and temperature is inevitable especially in high C-rate and it can lead to bad performance of battery. Therefore, the non-uniform effect (non-uniform temperature, current density and aging) on the pouch battery performance is studied with experiment and simulation. A new method, which measures the direct current resistance (DCR) based on the discharge curve, is proposed to get more detail of resistance variation. The measurement shows that the resistance of Lithium-ion pouch battery with non-uniform temperature is similar to that of average temperature. Then, effect of non-uniform aging is simulated based on the electro-thermal coupled model. It is found that battery suffering non-uniform aging has smaller discharging capacity relatively. The main cause for the discharge capacity reduction between the uniform and non-uniform aging battery is the big difference of local stoichiometry of cathode electrode θLiFePO4. The capacity reduction in 1  C rate occupies about 6% of the permissible capacity loss. Finally, tabs of battery are changed in order to acquire uniform temperature distribution. Battery whose tabs are put on the middle of the top side and the bottom side has a better performance in the opinion of thermal analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 128, 5 January 2018, Pages 1165-1174
نویسندگان
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