Composite structural batteries with Co3O4/CNT modified carbon fibers as anode: Computational insights on the interfacial behavior

Hu，Zihan1; Fu，Yu2; Hong，Zhiguo1; Huang，Yao1; Guo，Weihua1; Yang，Ruiheng1; Xu，Jun3; Zhou，Limin4; Yin，Sha1

2021-01-05

10.1016/j.compscitech.2020.108495

COMPOSITES SCIENCE AND TECHNOLOGY   影响因子和分区

0266-3538

1879-1050

Interface is vital for high-performance composites. We report energy-storage structural composites with CoO/CNT modified carbon fiber as anodes, aiming at enhancing their electrochemical and interfacial stability simultaneously. The interfacial failure is readily to occur at fiber/matrix interface as volume of CoO active particles expands during charging, and thus carbon nanotubes (CNTs) are incorporated surrounding active particles. The interfacial failure mechanism is investigated using a cohesive zone model (CZM). Effects of CNT addition, CNT density, particle geometry and patterns, and failure criterion parameters of polymer electrolyte on the interfacial behavior are all discussed. After CNT addition, failure will initiate at CNT/matrix interface instead of CF/matrix interface for anode without CNT. Also, particle patterns with nonuniform density that can decrease stress near CF interface and enable deformation outward (or absorb deformation) will ensure excellent interfacial performance. Polygonal particles infinitely close to a circular sphere shape possessing small gap/voids between CNTs will be ideal. The findings in this work will provide novel pathways for the design and fabrication of composite structural batteries with high interfacial stability.

A. Carbon fibers A. Carbon nanotubes B. Interface C. Finite element analysis (FEA) Composite structural battery

SCI ; EI

英语

其他

National Science Foundation of China[11872099] ; Open Research Fund Project of the State Key Laboratory of Advanced Forming Technology Equipment[SKL2019001] ; National Key Research and Development Program of China[2017YFB0103703]

Materials Science

Materials Science, Composites

WOS:000595951700003

ELSEVIER SCI LTD

20204409415780

Deformation ; Secondary batteries ; Anodes ; Polyelectrolytes ; Carbon nanotubes ; Failure (mechanical)

Secondary Batteries:702.1.2 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Crystalline Solids:933.1

MATERIALS SCIENCE

2-s2.0-85093952680

Scopus

1.Vehicle Energy & Safety Laboratory (VESL),Department of Automotive Engineering,School of Transportation Science and Engineering,Beihang University,Beijing,100191,China
2.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hung Hom,Hong Kong
3.Vehicle Energy & Safety Laboratory (VESL),Department of Mechanical Engineering and Engineering Science,The University of North Carolina at Charlotte,Charlotte,28223,United States
4.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,518055,China

Hu，Zihan,Fu，Yu,Hong，Zhiguo,et al. Composite structural batteries with Co3O4/CNT modified carbon fibers as anode: Computational insights on the interfacial behavior[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2021,201.

Hu，Zihan.,Fu，Yu.,Hong，Zhiguo.,Huang，Yao.,Guo，Weihua.,...&Yin，Sha.(2021).Composite structural batteries with Co3O4/CNT modified carbon fibers as anode: Computational insights on the interfacial behavior.COMPOSITES SCIENCE AND TECHNOLOGY,201.

Hu，Zihan,et al."Composite structural batteries with Co3O4/CNT modified carbon fibers as anode: Computational insights on the interfacial behavior".COMPOSITES SCIENCE AND TECHNOLOGY 201(2021).