Catalytic Solder Fuses Solid‐Solid Interfaces for All‐Solid‐State Lithium‐Sulfur Batteries
Abstract
AbstractAll‐solid‐state lithium‐sulfur batteries (ASSLSBs) have garnered significant research interest due to their inherent safety and high energy density. Nevertheless, their practical applications remain constrained by the sluggish sulfur reaction kinetics. While catalytic strategies have been demonstrated to facilitate sulfur conversion, their efficacy is fundamentally constrained by the lack of interfacial continuity. Thus, there is an urgent need for interfacial fusion to achieve such continuity and construct efficient catalytic interfaces. In this work, an amorphous interfacial fusion strategy using TiS2 as a catalytic “solder”, enabling intimate integration among sulfur, the catalyst, and the solid‐state electrolyte is proposed. Upon reacting with sulfur and the sulfide‐based solid electrolyte, TiS2 induces the in situ formation of amorphous TiS4 and Li‐Ti‐P‐S‐Cl interfacial phases. These amorphous phases facilitate interfacial “soldering”, creating integrated catalytic interfaces that enhance Li+ transport and catalytic efficiency. As a result, the optimized ASSLSBs show a reversible specific capacity of 720 mAh g−1 after 2000 cycles at 1 C. It also delivers a high areal capacity of 7.05 mAh cm−2 at a sulfur loading of 4.0 mg cm−2. This interfacial fusion strategy offers a promising pathway toward the practical development of high‐performance ASSLSBs.
Article Details
Authors (10)
Qiang Li
Chenxiang Xie
Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage State Key Laboratory of Chemical Engineering and Low‐Carbon Technology School of Chemical Engineering and Technology National Industry‐Education Platform for Energy Storage and Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Tianjin China
Xin Jiang
Chuannan Geng
Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, School of Chemical Engineering and Technology, National Industry-Education Platform for Energy Storage, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
Zhonghao Hu
Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, School of Chemical Engineering and Technology, National Industry-Education Platform for Energy Storage, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
Huilin Ge
Jiwei Shi
Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, School of Chemical Engineering and Technology, National Industry-Education Platform for Energy Storage, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
Li Wang
The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital Zhengzhou China
Wei Lv
Quan‐hong Yang
Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, School of Chemical Engineering and Technology, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Tianjin 300072 China