In-operando deformation studies on the mechano-electrochemical mechanism in free-standing MWCNTs/V 2 O 5 lithium ion battery electrode

Z. WANG; H. HUANG; L. ZENG; Y. WANG; L. LV; C. DAI; W. MAO; X. CHEN; D. FANG

doi:10.1016/j.electacta.2019.03.039

In-operando deformation studies on the mechano-electrochemical mechanism in free-standing MWCNTs/V 2 O 5 lithium ion battery electrode

Z. WANG, H. HUANG, L. ZENG, Y. WANG, L. LV, C. DAI, W. MAO, X. CHEN, D. FANG

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

18 Citations (Scopus)

Abstract

Free-standing MWCNTs/V 2 O 5 nanobelts composite architecture electrodes for lithium ion batteries (LIBs) are prepared based on hydrothermal method, electrostatic self-assembly approach and vacuum filtration deposition technique. Such kind of nanoarchitecture enhances the electrochemical kinetics and structural stability of V 2 O 5 cathodes. The distribution and evolution features of plane strains in free-standing MWCNTs/V 2 O 5 cathodes surface are in-operando monitored by using digital image correlation method and systematically discussed. The strain results show that the evolution of strain against potential obeys general Arrhenius relation under galvanostatic charge-discharge cycling. Considering the effect of lithium ion concentration, the elastic modulus of 20 wt% MWCNTs/V 2 O 5 electrode is confirmed via nanoindentation. The evolutions of average plane stresses in the free-standing MWCNTs/V 2 O 5 electrodes, as well as the contributions of mechanical and electrochemical components, are evaluated and discussed by mechano-electrochemical constitutive equation during electrochemical process. The analytical methods used in this article are universal for revealing the electrode mechano-electrochemical failure mechanism in LIBs. © 2019 Elsevier Ltd

Original language	English
Pages (from-to)	101-115
Number of pages	14
Journal	Electrochimica Acta
Volume	305
DOIs	https://doi.org/10.1016/j.electacta.2019.03.039
Publication status	Published - 2019
Externally published	Yes

Bibliographical note

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11572277, 11772287, 11802260), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (No. 2018JJ3490) and the Hunan Provincial Innovation Foundation for Postgraduate (CX2016B256).

Keywords

Carbon nanotube
Digital image correlation
Lithium ion battery
Mechano-electrochemical coupling
Vanadium pentoxide

UN SDGs

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

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10.1016/j.electacta.2019.03.039

Cite this

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title = "In-operando deformation studies on the mechano-electrochemical mechanism in free-standing MWCNTs/V 2 O 5 lithium ion battery electrode",

abstract = "Free-standing MWCNTs/V 2 O 5 nanobelts composite architecture electrodes for lithium ion batteries (LIBs) are prepared based on hydrothermal method, electrostatic self-assembly approach and vacuum filtration deposition technique. Such kind of nanoarchitecture enhances the electrochemical kinetics and structural stability of V 2 O 5 cathodes. The distribution and evolution features of plane strains in free-standing MWCNTs/V 2 O 5 cathodes surface are in-operando monitored by using digital image correlation method and systematically discussed. The strain results show that the evolution of strain against potential obeys general Arrhenius relation under galvanostatic charge-discharge cycling. Considering the effect of lithium ion concentration, the elastic modulus of 20 wt% MWCNTs/V 2 O 5 electrode is confirmed via nanoindentation. The evolutions of average plane stresses in the free-standing MWCNTs/V 2 O 5 electrodes, as well as the contributions of mechanical and electrochemical components, are evaluated and discussed by mechano-electrochemical constitutive equation during electrochemical process. The analytical methods used in this article are universal for revealing the electrode mechano-electrochemical failure mechanism in LIBs. {\textcopyright} 2019 Elsevier Ltd",

keywords = "Carbon nanotube, Digital image correlation, Lithium ion battery, Mechano-electrochemical coupling, Vanadium pentoxide",

author = "Z. WANG and H. HUANG and L. ZENG and Y. WANG and L. LV and C. DAI and W. MAO and X. CHEN and D. FANG",

note = "This work was supported by the National Natural Science Foundation of China (Grant Nos. 11572277, 11772287, 11802260), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (No. 2018JJ3490) and the Hunan Provincial Innovation Foundation for Postgraduate (CX2016B256).",

year = "2019",

doi = "10.1016/j.electacta.2019.03.039",

language = "English",

volume = "305",

pages = "101--115",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - In-operando deformation studies on the mechano-electrochemical mechanism in free-standing MWCNTs/V 2 O 5 lithium ion battery electrode

AU - WANG, Z.

AU - HUANG, H.

AU - ZENG, L.

AU - WANG, Y.

AU - LV, L.

AU - DAI, C.

AU - MAO, W.

AU - CHEN, X.

AU - FANG, D.

N1 - This work was supported by the National Natural Science Foundation of China (Grant Nos. 11572277, 11772287, 11802260), the Young and Middle-aged Scholar Training Program of Hunan Province Association for Science and Technology (2017TJ-Q02), the Hunan Natural Science Foundation of Hunan Province (No. 2018JJ3490) and the Hunan Provincial Innovation Foundation for Postgraduate (CX2016B256).

PY - 2019

Y1 - 2019

N2 - Free-standing MWCNTs/V 2 O 5 nanobelts composite architecture electrodes for lithium ion batteries (LIBs) are prepared based on hydrothermal method, electrostatic self-assembly approach and vacuum filtration deposition technique. Such kind of nanoarchitecture enhances the electrochemical kinetics and structural stability of V 2 O 5 cathodes. The distribution and evolution features of plane strains in free-standing MWCNTs/V 2 O 5 cathodes surface are in-operando monitored by using digital image correlation method and systematically discussed. The strain results show that the evolution of strain against potential obeys general Arrhenius relation under galvanostatic charge-discharge cycling. Considering the effect of lithium ion concentration, the elastic modulus of 20 wt% MWCNTs/V 2 O 5 electrode is confirmed via nanoindentation. The evolutions of average plane stresses in the free-standing MWCNTs/V 2 O 5 electrodes, as well as the contributions of mechanical and electrochemical components, are evaluated and discussed by mechano-electrochemical constitutive equation during electrochemical process. The analytical methods used in this article are universal for revealing the electrode mechano-electrochemical failure mechanism in LIBs. © 2019 Elsevier Ltd

AB - Free-standing MWCNTs/V 2 O 5 nanobelts composite architecture electrodes for lithium ion batteries (LIBs) are prepared based on hydrothermal method, electrostatic self-assembly approach and vacuum filtration deposition technique. Such kind of nanoarchitecture enhances the electrochemical kinetics and structural stability of V 2 O 5 cathodes. The distribution and evolution features of plane strains in free-standing MWCNTs/V 2 O 5 cathodes surface are in-operando monitored by using digital image correlation method and systematically discussed. The strain results show that the evolution of strain against potential obeys general Arrhenius relation under galvanostatic charge-discharge cycling. Considering the effect of lithium ion concentration, the elastic modulus of 20 wt% MWCNTs/V 2 O 5 electrode is confirmed via nanoindentation. The evolutions of average plane stresses in the free-standing MWCNTs/V 2 O 5 electrodes, as well as the contributions of mechanical and electrochemical components, are evaluated and discussed by mechano-electrochemical constitutive equation during electrochemical process. The analytical methods used in this article are universal for revealing the electrode mechano-electrochemical failure mechanism in LIBs. © 2019 Elsevier Ltd

KW - Carbon nanotube

KW - Digital image correlation

KW - Lithium ion battery

KW - Mechano-electrochemical coupling

KW - Vanadium pentoxide

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DO - 10.1016/j.electacta.2019.03.039

M3 - Journal Article (refereed)

SN - 0013-4686

VL - 305

SP - 101

EP - 115

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

In-operando deformation studies on the mechano-electrochemical mechanism in free-standing MWCNTs/V 2 O 5 lithium ion battery electrode

Abstract

Bibliographical note

Keywords

UN SDGs

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