contributor author | Gao, Xiang | |
contributor author | Xu, Jun | |
date accessioned | 2022-02-05T22:33:13Z | |
date available | 2022-02-05T22:33:13Z | |
date copyright | 11/5/2020 12:00:00 AM | |
date issued | 2020 | |
identifier issn | 2381-6872 | |
identifier other | jeecs_18_2_020903.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4277743 | |
description abstract | The capacity fade in lithium-ion battery (LIB) of high energy density using Si/C core–shell particle anode is one of the major barriers blocking its wide application. However, the underlying mechanism of electro-chemo-mechanical degradation remains unclear. In this study, we propose and validate a multiscale model (electrode level and particle level), considering electrochemical–mechanical coupling and cohesive zone method at the particle level. The effects of charging rate, core/shell ratio, and mechanical properties of the shell on the separation and capacity fade are discussed. We discover that larger charging rate, smaller core/shell ratio, and stiffer shell can mitigate the core–shell separation gap, leading to higher capacity retention. Results shed light on the degradation mechanism of Si/C core–shell anode and provide design guidance for Si/C anode materials in minimizing the capacity fade and safe battery charging/discharging strategy. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Multiscale Modeling of Electro-Chemo-Mechanical Degradation in Si/C Core–Shell Anode for the Lithium-Ion Battery of High Energy Density | |
type | Journal Paper | |
journal volume | 18 | |
journal issue | 2 | |
journal title | Journal of Electrochemical Energy Conversion and Storage | |
identifier doi | 10.1115/1.4048704 | |
journal fristpage | 020903-1 | |
journal lastpage | 020903-10 | |
page | 10 | |
tree | Journal of Electrochemical Energy Conversion and Storage:;2020:;volume( 018 ):;issue: 002 | |
contenttype | Fulltext | |