Spatially Confined in Situ Formed Sodiophilic-Conductive Network for High-Performance Sodium Metal Batteries

Xuan Lu; Ruochen Chen; Shenyu Shen; Yuyang Li; Hongyang Zhao; Hongkang Wang; Tiantian Wu; Yaqiong Su; Jianmin Luo; Xiaofei Hu; Shujiang Ding; Weiyang Li

doi:10.1021/acs.nanolett.4c00562

Spatially Confined in Situ Formed Sodiophilic-Conductive Network for High-Performance Sodium Metal Batteries

Xuan Lu
, Ruochen Chen
, Shenyu Shen
, Yuyang Li
, Hongyang Zhao
, Hongkang Wang
, Tiantian Wu
, Yaqiong Su
, Jianmin Luo
, Xiaofei Hu
, Shujiang Ding
, Weiyang Li

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The sodium (Na) metal anode encounters issues such as volume expansion and dendrite growth during cycling. Herein, a novel three-dimensional flexible composite Na metal anode was constructed through the conversion-alloying reaction between Na and ultrafine Sb₂S₃ nanoparticles encapsulated within the electrospun carbon nanofibers (Sb₂S₃@CNFs). The formed sodiophilic Na₃Sb sites and the high Na⁺-conducting Na₂S matrix, coupled with CNFs, establish a spatially confined “sodiophilic-conductive” network, which effectively reduces the Na nucleation barrier, improves the Na⁺ diffusion kinetics, and suppresses the volume expansion, thereby inhibiting the Na dendrite growth. Consequently, the Na/Sb₂S₃@CNFs electrode exhibits a high Coulombic efficiency (99.94%), exceptional lifespan (up to 2800 h) at high current densities (up to 5 mA cm^-2), and high areal capacities (up to 5 mAh cm^-2) in symmetric cells. The coin-type full cells assembled with a Na₃V₂(PO₄)₃/C cathode demonstrate significant enhancement in electrochemical performance.

Original language	English
Pages (from-to)	5490-5497
Number of pages	8
Journal	Nano Letters
Volume	24
Issue number	18
DOIs	https://doi.org/10.1021/acs.nanolett.4c00562
State	Published - 8 May 2024

Keywords

3D scaffold
flexible pouch cell
Na+ diffusion kinetics
sodiophilic-conductive network
sodium metal anode

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10.1021/acs.nanolett.4c00562

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@article{be668497f67e4fc0841ecea3901c65cc,

title = "Spatially Confined in Situ Formed Sodiophilic-Conductive Network for High-Performance Sodium Metal Batteries",

abstract = "The sodium (Na) metal anode encounters issues such as volume expansion and dendrite growth during cycling. Herein, a novel three-dimensional flexible composite Na metal anode was constructed through the conversion-alloying reaction between Na and ultrafine Sb2S3 nanoparticles encapsulated within the electrospun carbon nanofibers (Sb2S3@CNFs). The formed sodiophilic Na3Sb sites and the high Na+-conducting Na2S matrix, coupled with CNFs, establish a spatially confined “sodiophilic-conductive” network, which effectively reduces the Na nucleation barrier, improves the Na+ diffusion kinetics, and suppresses the volume expansion, thereby inhibiting the Na dendrite growth. Consequently, the Na/Sb2S3@CNFs electrode exhibits a high Coulombic efficiency (99.94\%), exceptional lifespan (up to 2800 h) at high current densities (up to 5 mA cm-2), and high areal capacities (up to 5 mAh cm-2) in symmetric cells. The coin-type full cells assembled with a Na3V2(PO4)3/C cathode demonstrate significant enhancement in electrochemical performance.",

keywords = "3D scaffold, flexible pouch cell, Na+ diffusion kinetics, sodiophilic-conductive network, sodium metal anode",

author = "Xuan Lu and Ruochen Chen and Shenyu Shen and Yuyang Li and Hongyang Zhao and Hongkang Wang and Tiantian Wu and Yaqiong Su and Jianmin Luo and Xiaofei Hu and Shujiang Ding and Weiyang Li",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society.",

year = "2024",

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doi = "10.1021/acs.nanolett.4c00562",

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TY - JOUR

T1 - Spatially Confined in Situ Formed Sodiophilic-Conductive Network for High-Performance Sodium Metal Batteries

AU - Lu, Xuan

AU - Chen, Ruochen

AU - Shen, Shenyu

AU - Li, Yuyang

AU - Zhao, Hongyang

AU - Wang, Hongkang

AU - Wu, Tiantian

AU - Su, Yaqiong

AU - Luo, Jianmin

AU - Hu, Xiaofei

AU - Ding, Shujiang

AU - Li, Weiyang

PY - 2024/5/8

Y1 - 2024/5/8

N2 - The sodium (Na) metal anode encounters issues such as volume expansion and dendrite growth during cycling. Herein, a novel three-dimensional flexible composite Na metal anode was constructed through the conversion-alloying reaction between Na and ultrafine Sb2S3 nanoparticles encapsulated within the electrospun carbon nanofibers (Sb2S3@CNFs). The formed sodiophilic Na3Sb sites and the high Na+-conducting Na2S matrix, coupled with CNFs, establish a spatially confined “sodiophilic-conductive” network, which effectively reduces the Na nucleation barrier, improves the Na+ diffusion kinetics, and suppresses the volume expansion, thereby inhibiting the Na dendrite growth. Consequently, the Na/Sb2S3@CNFs electrode exhibits a high Coulombic efficiency (99.94%), exceptional lifespan (up to 2800 h) at high current densities (up to 5 mA cm-2), and high areal capacities (up to 5 mAh cm-2) in symmetric cells. The coin-type full cells assembled with a Na3V2(PO4)3/C cathode demonstrate significant enhancement in electrochemical performance.

AB - The sodium (Na) metal anode encounters issues such as volume expansion and dendrite growth during cycling. Herein, a novel three-dimensional flexible composite Na metal anode was constructed through the conversion-alloying reaction between Na and ultrafine Sb2S3 nanoparticles encapsulated within the electrospun carbon nanofibers (Sb2S3@CNFs). The formed sodiophilic Na3Sb sites and the high Na+-conducting Na2S matrix, coupled with CNFs, establish a spatially confined “sodiophilic-conductive” network, which effectively reduces the Na nucleation barrier, improves the Na+ diffusion kinetics, and suppresses the volume expansion, thereby inhibiting the Na dendrite growth. Consequently, the Na/Sb2S3@CNFs electrode exhibits a high Coulombic efficiency (99.94%), exceptional lifespan (up to 2800 h) at high current densities (up to 5 mA cm-2), and high areal capacities (up to 5 mAh cm-2) in symmetric cells. The coin-type full cells assembled with a Na3V2(PO4)3/C cathode demonstrate significant enhancement in electrochemical performance.

KW - 3D scaffold

KW - flexible pouch cell

KW - Na+ diffusion kinetics

KW - sodiophilic-conductive network

KW - sodium metal anode

UR - https://www.scopus.com/pages/publications/85191984926

U2 - 10.1021/acs.nanolett.4c00562

DO - 10.1021/acs.nanolett.4c00562

M3 - 文章

C2 - 38657179

AN - SCOPUS:85191984926

SN - 1530-6984

VL - 24

SP - 5490

EP - 5497

JO - Nano Letters

JF - Nano Letters

IS - 18

ER -

Spatially Confined in Situ Formed Sodiophilic-Conductive Network for High-Performance Sodium Metal Batteries

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