Ship in bottle synthesis of yolk-shell MnS@hollow carbon spheres for sodium storage

Jianyun Zhao; Yuxiao Yang; Chuan Jiang; Nawab Ali Khan; Xin Jia; Hongyang Zhao; Shujiang Ding

doi:10.1088/1361-6528/ac1ebc

Ship in bottle synthesis of yolk-shell MnS@hollow carbon spheres for sodium storage

Nanotechnology. 2021 Sep 20;32(50). doi: 10.1088/1361-6528/ac1ebc.

Authors

Jianyun Zhao¹, Yuxiao Yang¹, Chuan Jiang², Nawab Ali Khan¹, Xin Jia¹, Hongyang Zhao¹, Shujiang Ding^{1

3}

Affiliations

¹ Department of Applied Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China.
² School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China.
³ Shenzhen Research Institute of Xi'an Jiaotong University, Shenzhen 518057, Guangdong, People's Republic of China.

PMID: 34407515
DOI: 10.1088/1361-6528/ac1ebc

Abstract

Yolk-shell structure can effectively alleviate the volume change of electrodes during electrochemical charge/discharge. In this paper, we provide a new ship in bottle strategy to synthesize MnS@C sodium ion battery anode with yolk-shell nanostructure. The obtained yolk-shell structures were uniform spheres. The space between the carbon shell and MnS core allows the volume change of MnS without deforming the carbon shell or damaging the solid electrolyte interface film formed on the outer surface. The MnS@C yolk-shell structure showed stable cycle stability (336 mAh g^-1capacity after 200 cycles at 0.5 A g^-1current density).

Keywords: anode material; electrochemical energy storage; ship in bottle strategy; sodium ion battery; yolk-shell structure.