High-Energy SiO-Sulfur Battery with Preloaded Li3N in a Cathode as a Lithiation Reagent

Peng-Fei Wang; Jian-Cang Wang; Nan Zhang; Shu-Hui Tian; Ting-Feng Yi

doi:10.1021/acs.langmuir.4c00484

High-Energy SiO-Sulfur Battery with Preloaded Li₃N in a Cathode as a Lithiation Reagent

Langmuir. 2024 Apr 23;40(16):8678-8684. doi: 10.1021/acs.langmuir.4c00484. Epub 2024 Apr 12.

Authors

Peng-Fei Wang^{1

2}, Jian-Cang Wang^{1

2}, Nan Zhang^{1

2}, Shu-Hui Tian^{1

2}, Ting-Feng Yi^{1

2}

Affiliations

¹ School of Materials Science and Engineering, Northeastern University, Shenyang 110819, P. R. China.
² Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, P. R. China.

PMID: 38606578
DOI: 10.1021/acs.langmuir.4c00484

Abstract

The practical use of lithium-sulfur batteries faces the "shuttle effect" and lithium dendrite growth. Employing SiO instead of Li metal can fundamentally solve the above problems. Nevertheless, selecting a convenient prelithiation method is essential for normal operation of the battery system. Hence, this work proposed a novel SiO-sulfur battery with preloaded Li₃N in a cathode as a prelithiation reagent, which can thoroughly solve the dendrite problem and the side reaction with polysulfides of lithium anode. The S@KB-Li₃N vs SiO full cell can obtain a high specific capacity of 790 mAh g^-1 after the activation process and be maintained at 478 mAh g^-1 after 100 cycles. Our design will provide a new prelithiation strategy for a high-specific-energy SiO-sulfur battery system.