Sodiophilic Zn/SnO2 porous scaffold to stabilize sodium deposition for sodium metal batteries - Details

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Abstract：

Sodium　is　regarded　as　a　promising　electrode　material　in　the　post　lithium　ion　battery　era　due　to　its　high　theoretical　specific　capacity　of　1166　mAh　g−1,　low　electrochemical　potential　(−2.71　V　vs　standard　hydrogen　electrode),　low　cost　and　high　natural　abundance.　However,　similar　to　lithium　metal　anode,　sodium　metal　anode　also　shares　the　problems　of　uncontrollable　dendrites　growth,　formation　of　unstable　solid　electrolyte　interface　and　large　volume　change　during　repeated　plating/stripping.　Herein,　a　porous　sodiophilic　zinc　metal　framework　modified　with　SnO2　surface　layer　is　introduced　on　copper　substrate　and　used　as　3D　current　collector　for　sodium　metal　batteries　in　order　to　realize　even　deposition　of　Na,　moderate　the　volume　change　and　construct　a　stable　solid　electrolyte　interface　layer　simultaneously.　Theoretical　calculations　based　on　density　functional　theory　are　used　to　interpret　the　deposition　behavior　of　the　metallic　Na　on　different　current　collectors.　The　electrochemical　performance　results　show　that　the　Cu/Zn/SnO2@Na　symmetric　cell　can　deliver　an　extremely　low　nucleation　overpotential　(0　mV),　outstanding　long-term　rate　performance　over　1000　h　and　also　can　be　cycled　for　around　700　h　even　at　a　high　current　density　of　5　mA　cm−2　for　total　capacity　of　5　mAh　cm−2.　Cu/Zn/SnO2@Na//Na3V2(PO4)3　full　cell　is　also　constructed　to　display　the　feasible　application　of　the　designed　Cu/Zn/SnO2　porous　current　collector　in　advanced　sodium　metal　anode.　©　2020　Elsevier　B.V.

Keyword：

Low nucleation energy; Na2O surface layer; Porous Zn scaffold; Sodium affinity; Sodium metal anode

Community：

[ 1 ] [Chen, Q.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 2 ] [Liu, B.]Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, 361005, China
[ 3 ] [Zhang, L.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 4 ] [Xie, Q.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 5 ] [Zhang, Y.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 6 ] [Lin, J.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 7 ] [Qu, B.]Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, 361005, China
[ 8 ] [Wang, L.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China
[ 9 ] [Sa, B.]Multiscale Computational Materials Facility, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350100, China
[ 10 ] [Peng, D.-L.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, China

Reprint 's Address：

[Xie, Q.]State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen UniversityChina

Email：

xieqsh@xmu.edu.cn

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Source ：

Chemical Engineering Journal

ISSN： 1385-8947

Year： 2021

Volume： 404

1 6 . 7 4 4

JCR@2021

1 3 . 4 0 0

JCR@2023

ESI HC Threshold：105

JCR Journal Grade：1

CAS Journal Grade：1

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 0

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