Single-Atom Electrocatalysts for Lithium Sulfur Batteries: Progress, Opportunities, and Challenges
Source abstract
Abstract
Lithium sulfur (Li–S) battery is considered as one of the most promising energy storage devices, because of its low cost, high energy density, and environmental friendliness. However, the practical applications of Li–S batteries have been hindered by a low utilization efficiency of sulfur arising from complicated chemical conversion of polysulfides and the corrosion of Li metal electrode during charge/discharge processes. Single atom catalysts (SACs) consisting of atomically-dispersed metal sites have been recently exploited as high-performance electrocatalytic materials in various energy storage devices, including Li–S batteries, because of their unique catalytic properties and maximized atom efficiency. In this mini-review, we first describe the major roadblocks and opportunities for the development of commercial Li–S batteries. Following that, we will highlight the specific roles of SAC materials, which are used as cathodes, separators, interlayers, electrolytes, and anodes in Li–S batteries. The detailed catalytic conversion mechanism of polysulfides and nucleation process of Li ions over single-atom active sites are also discussed. Finally, we highlight major challenges to be addressed in this field and provide our perspectives in the rational design and synthesis of superior SACs to accelerate their application in Li–S batteries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
Nanoyang Group, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 2 Science Drive 3, Singapore 117546
SZU-NUS Collaborative Center, International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Centre for Clean Environment and Energy, School of Environment and Science, Griffith University, Gold Coast, Queensland 4222, Australia
Funding
Ministry of Education - Singapore · National Natural Science Foundation of China
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