کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1283837 1497934 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A representative-sandwich model for simultaneously coupled mechanical-electrical-thermal simulation of a lithium-ion cell under quasi-static indentation tests
ترجمه فارسی عنوان
یک مدل ساندویچ نماینده برای شبیه سازی همزمان مکانیکی الکتریکی و حرارتی یک سلول یون لیتیوم تحت آزمون های نیمه استاتیک
کلمات کلیدی
باتری لیتیوم یون، مدار کوتاه، شبیه سازی چند فیزیک، خرابی مکانیکی، رمپ دما، افتادن
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• Simultaneous-coupling study of mechanical/electrical/thermal response of batteries.
• Experimental data from three sets of short-circuit tests compared against models.
• Separator-failure induced internal short-circuit is predicted.
• Insights from model are used to evaluate relative merits of different test methods.

The safety behavior of lithium-ion batteries under external mechanical crush is a critical concern, especially during large-scale deployment. We previously presented a sequentially coupled mechanical-electrical-thermal modeling approach for studying mechanical-abuse-induced short circuit. In this work, we study different mechanical test conditions and examine the interaction between mechanical failure and electrical-thermal responses, by developing a simultaneously coupled mechanical-electrical-thermal model. The present work utilizes a single representative-sandwich (RS) to model the full pouch cell with explicit representations for each individual component such as the active material, current collector, separator, etc. Anisotropic constitutive material models are presented to describe the mechanical properties of active materials and separator. The model predicts accurately the force-strain response and fracture of battery structure, simulates the local failure of separator layer, and captures the onset of short circuit for lithium-ion battery cells under sphere indentation tests with three different diameters. Electrical-thermal responses to the three different indentation tests are elaborated and discussed. Numerical studies are presented to show the potential impact of test conditions on the electrical-thermal behavior of the cell after the occurrence of short circuit.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 298, 1 December 2015, Pages 309–321
نویسندگان
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