Measurements of fracture properties of MWCNTs modified LiNi0.5Mn0.3Co0.2O2 electrodes by a modified shear lag model

Weiguo MAO; Xiaoxue ZHU; Zhouqing ZHANG; Huiyu HUANG; Cuiying DAI; Junan PAN; Yong PAN; Xi CHEN; Daining FANG

doi:10.1016/j.msea.2020.139223

Measurements of fracture properties of MWCNTs modified LiNi_0.5Mn_0.3Co_0.2O₂ electrodes by a modified shear lag model

Weiguo MAO, Xiaoxue ZHU, Zhouqing ZHANG, Huiyu HUANG, Cuiying DAI^*, Junan PAN^*, Yong PAN, Xi CHEN, Daining FANG

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

4 Citations (Scopus)

Abstract

The multi-walled carbon nanotubes (MWCNTs) modified LiNi_0.5Mn_0.3Co_0.2O₂ (NMC532) electrodes were prepared by using blade-coated method. The corresponding microstructure morphology were observed by scanning microscopy electron. The impedance spectroscopy and cycle performances of the electrodes with different MWCNTs contents were measured and discussed. Tensile fracture measurements of the electrodes were performed with the aid of digital image correlation technique. The cracking nucleation and propagation on the active layer surface were in situ monitored. A modified shear lag model was developed to analyze the fracture strength, fracture energy and fracture toughness of the active layer during tensions. The effect of MWCNTs on tensile failure mechanisms of two-layered NMC532 electrodes was discussed. The proposed method is useful for appraising the mechanical properties of other advanced active layers in lithium ion batteries. © 2020 Elsevier B.V.

Original language	English
Article number	139223
Volume	781
Early online date	10 Mar 2020
DOIs	https://doi.org/10.1016/j.msea.2020.139223
Publication status	Published - Apr 2020
Externally published	Yes

Bibliographical note

This work was supported by the National Natural Science Foundation of China (Nos. 11802260, 11902283, 11572277, 11772287), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (No. 2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (Nos. 2018JJ3490, 2019JJ50578).

Keywords

Digital image correlation
Lithium-ion battery
Shear lag
Tensile facture

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.msea.2020.139223

Cite this

@article{c7910120a330483b9dcfc6f3ce8df750,

title = "Measurements of fracture properties of MWCNTs modified LiNi0.5Mn0.3Co0.2O2 electrodes by a modified shear lag model",

abstract = "The multi-walled carbon nanotubes (MWCNTs) modified LiNi0.5Mn0.3Co0.2O2 (NMC532) electrodes were prepared by using blade-coated method. The corresponding microstructure morphology were observed by scanning microscopy electron. The impedance spectroscopy and cycle performances of the electrodes with different MWCNTs contents were measured and discussed. Tensile fracture measurements of the electrodes were performed with the aid of digital image correlation technique. The cracking nucleation and propagation on the active layer surface were in situ monitored. A modified shear lag model was developed to analyze the fracture strength, fracture energy and fracture toughness of the active layer during tensions. The effect of MWCNTs on tensile failure mechanisms of two-layered NMC532 electrodes was discussed. The proposed method is useful for appraising the mechanical properties of other advanced active layers in lithium ion batteries. {\textcopyright} 2020 Elsevier B.V.",

keywords = "Digital image correlation, Lithium-ion battery, Shear lag, Tensile facture",

author = "Weiguo MAO and Xiaoxue ZHU and Zhouqing ZHANG and Huiyu HUANG and Cuiying DAI and Junan PAN and Yong PAN and Xi CHEN and Daining FANG",

note = "This work was supported by the National Natural Science Foundation of China (Nos. 11802260, 11902283, 11572277, 11772287), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (No. 2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (Nos. 2018JJ3490, 2019JJ50578).",

year = "2020",

month = apr,

doi = "10.1016/j.msea.2020.139223",

language = "English",

volume = "781",

issn = "0921-5093",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Measurements of fracture properties of MWCNTs modified LiNi0.5Mn0.3Co0.2O2 electrodes by a modified shear lag model

AU - MAO, Weiguo

AU - ZHU, Xiaoxue

AU - ZHANG, Zhouqing

AU - HUANG, Huiyu

AU - DAI, Cuiying

AU - PAN, Junan

AU - PAN, Yong

AU - CHEN, Xi

AU - FANG, Daining

N1 - This work was supported by the National Natural Science Foundation of China (Nos. 11802260, 11902283, 11572277, 11772287), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (No. 2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (Nos. 2018JJ3490, 2019JJ50578).

PY - 2020/4

Y1 - 2020/4

N2 - The multi-walled carbon nanotubes (MWCNTs) modified LiNi0.5Mn0.3Co0.2O2 (NMC532) electrodes were prepared by using blade-coated method. The corresponding microstructure morphology were observed by scanning microscopy electron. The impedance spectroscopy and cycle performances of the electrodes with different MWCNTs contents were measured and discussed. Tensile fracture measurements of the electrodes were performed with the aid of digital image correlation technique. The cracking nucleation and propagation on the active layer surface were in situ monitored. A modified shear lag model was developed to analyze the fracture strength, fracture energy and fracture toughness of the active layer during tensions. The effect of MWCNTs on tensile failure mechanisms of two-layered NMC532 electrodes was discussed. The proposed method is useful for appraising the mechanical properties of other advanced active layers in lithium ion batteries. © 2020 Elsevier B.V.

AB - The multi-walled carbon nanotubes (MWCNTs) modified LiNi0.5Mn0.3Co0.2O2 (NMC532) electrodes were prepared by using blade-coated method. The corresponding microstructure morphology were observed by scanning microscopy electron. The impedance spectroscopy and cycle performances of the electrodes with different MWCNTs contents were measured and discussed. Tensile fracture measurements of the electrodes were performed with the aid of digital image correlation technique. The cracking nucleation and propagation on the active layer surface were in situ monitored. A modified shear lag model was developed to analyze the fracture strength, fracture energy and fracture toughness of the active layer during tensions. The effect of MWCNTs on tensile failure mechanisms of two-layered NMC532 electrodes was discussed. The proposed method is useful for appraising the mechanical properties of other advanced active layers in lithium ion batteries. © 2020 Elsevier B.V.

KW - Digital image correlation

KW - Lithium-ion battery

KW - Shear lag

KW - Tensile facture

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U2 - 10.1016/j.msea.2020.139223

DO - 10.1016/j.msea.2020.139223

M3 - Journal Article (refereed)

SN - 0921-5093

VL - 781

M1 - 139223

ER -