کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5127331 1489009 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling of thermo-mechanical stresses in Li-ion battery
ترجمه فارسی عنوان
مدل سازی تنشهای حرارتی مکانیکی در باتری لیتیوم یون
کلمات کلیدی
باتری لیتیوم یون، مدل سازی، مکانیکی، حرارتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی


- A thermo-mechanic model of Li-ion battery during fast discharging is proposed.
- The multilayer architecture battery at macroscopic scale is taken into account.
- The complexity of the thermomechanical loading states in battery is highlighted.
- Stronger stress levels are found at the active material/current collector interfaces.

The aim of this paper is to evaluate the thermo-mechanical behavior of a multilayer section of a lithium-ion 18650 cell during discharge. Discharging experiments with the measurements of voltage, current output and surface temperature were conducted. The model, developed in the framework of macroscopic approach, accounts for the heat generation during the battery discharge as well as the thermal expansion of each material layer of the jelly roll and can. For sake of simplicity, the mechanical behavior is assumed linear elastic and isotropic, the layers are perfectly tied and the model does not include the lithiation expansion. However, the approach helps to point out the evolution of stresses at the interfaces of the multilayer assembly during complete discharge. It introduces the question of interface cohesion/contact ageing as cycling repeats.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Energy Storage - Volume 13, October 2017, Pages 184-192
نویسندگان
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