scholarly journals Learn from nature: Bio‐inspired structure design for lithium‐ion batteries

EcoMat ◽  
2022 ◽  
Author(s):  
Chao Lu ◽  
Xi Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Structure Design

scholarly journals Structure design and mechanism analysis of silicon anode for lithium-ion batteries

2019 ◽  
Vol 62 (11) ◽  
pp. 1515-1536 ◽  
Author(s):  
Xiang Chen ◽  
Haixia Li ◽  
Zhenhua Yan ◽  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Structure Design ◽  
Silicon Anode ◽  
Mechanism Analysis

Structure Design and Performance of LiNixCoyMn1-x-yO2Cathode Materials for Lithium-ion Batteries: A Review

2014 ◽  
Vol 61 (10) ◽  
pp. 1071-1083 ◽  
Author(s):  
Xinru Zhao ◽  
Jinxian Wang ◽  
Xiangting Dong ◽  
Guixia Liu ◽  
Wensheng Yu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Structure Design ◽  
And Performance

scholarly journals Stress fields in hollow core–shell spherical electrodes of lithium ion batteries

2014 ◽  
Vol 470 (2172) ◽  
pp. 20140299 ◽  
Author(s):  
Yingjie Liu ◽  
Pengyu Lv ◽  
Jun Ma ◽  
Ruobing Bai ◽  
Hui Ling Duan
Keyword(s):  
Phase Transformation ◽  
Lithium Ion Batteries ◽  
Hydrostatic Stress ◽  
Phase Interface ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Structure Design ◽  
Interface Stress ◽  
Effective Capacity ◽  
Stress Surface

This paper presents a comprehensive model coupling the effects of hydrostatic stress, surface/interface stress, phase transformation and the structure of electrodes. First, the governing equation of moving phase interface with hydrostatic stress is established. Under the effect of hydrostatic stress, phase transformation process is much faster, which means phase transformation time is overestimated in previous publications. Then, a cross-scale analysis is presented to investigate the size effect owing to hydrostatic stress, surface stress and interface stress separately, which concludes that the effect of hydrostatic stress is significant for the stress field in microelectrode particles, whereas that of surface/interface stress is highlighted in nano-ones. Finally, an electrochemical variable ‘efficiency’ (ratio of effective capacity over total capacity) is defined. The advantages of hollow structure electrodes on stress and efficiency are analysed. The present model is helpful for the material and structure design of electrodes of lithium ion batteries.

ChemInform Abstract: Structure Design and Performance of LiNixCoyMn1-x-yO2Cathode Materials for Lithium-Ion Batteries: A Review

ChemInform ◽  
2014 ◽  
Vol 45 (51) ◽  
pp. no-no
Author(s):  
Xinru Zhao ◽  
Jinxian Wang ◽  
Xiangting Dong ◽  
Guixia Liu ◽  
Wensheng Yu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Structure Design ◽  
Abstract Structure ◽  
And Performance

scholarly journals Constitutive Behavior and Mechanical Failure of Internal Configuration in Prismatic Lithium-Ion Batteries under Mechanical Loading

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1219
Author(s):  
Zhijie Li ◽  
Jiqing Chen ◽  
Fengchong Lan ◽  
Yigang Li
Keyword(s):  
Lithium Ion Batteries ◽  
Progressive Failure ◽  
Failure Mechanisms ◽  
Lithium Ion ◽  
Element Model ◽  
Structure Design ◽  
Mechanical Failure ◽  
Uniaxial Tensile ◽  
Failure Behavior ◽  
Short Circuits

Internal short circuits and thermal runaway in lithium-ion batteries (LIBs) are mainly caused by deformation-induced failures in their internal components. Understanding the mechanisms of mechanical failure in the internal materials is of much importance for the design of LIB pack safety. In this work, the constitutive behaviors and deformation-induced failures of these component materials were tested and simulated. The stress-strain constitutive models of the anode/cathode and the separator under uniaxial tensile and compressive loads were proposed, and maximum tensile strain failure criteria were used to simulate the failure behaviors on these materials under the biaxial indentations. In order to understand the deformation failure mechanisms of ultrathin and multilayer materials within the prismatic cell, a mesoscale layer element model (LEM) with a separator-cathode-separator-anode structure was constructed. The deformation failure of LEM under spherical punches of different sizes was analyzed in detail, and the results were experimentally verified. Furthermore, the n-layer LEM stacked structure numerical model was constructed to calculate the progressive failure mechanisms of cathodes and anodes under punches. The results of test and simulation show the fracture failure of the cathodes under local indentation will trigger the failure of adjacent layers successively, and the internal short circuits are ultimately caused by separator failure owing to fractures and slips in the electrodes. The results improve the understanding of the failure behavior of the component materials in prismatic lithium-ion batteries, and provide some safety suggestions for the battery structure design in the future.

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