Ordered and Expanded Li Ion Channels for Dendrite‐Free and Fast Kinetics Lithium–Sulfur Battery
Source abstract
Abstract
Abstract The uncontrolled polysulfide shuttling and lithium dendrite growth greatly impede the practical implementation of Li–S batteries. These issues can be alleviated by constructing an artificial layer that immobilizes soluble polysulfides and regulates Li+ flux. Here, a layer‐expanded lithium montmorillonite is fabricated through molecular intercalation to serve as a dual regulator for Li–S batteries. The lithiophilic montmorillonite, with its ordered and expanded Li+ diffusion channels, exhibits a high transference number, and promotes homogeneous Li deposition. Additionally, its moderate adsorption of polysulfides, combined with favorable Li diffusion behavior, enhanced the redox kinetics of sulfur species. This unique structure enables a prolonged lifespan of 1000 cycles at 0.5C with a low capacity decay of 0.04% per cycle for practical Li–S batteries.
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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
School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
College of Materials Science and Engineering Xi'an University of Science and Technology Xi'an 710054 P. R. China
Shenzhen HUASUAN Technology Co. Ltd. Shenzhen 518055 P. R. China
School of Chemical & Environmental Engineering China University of Mining and Technology (Beijing) Beijing 100083 P. R. China
Funding
National Natural Science Foundation of China · China Scholarship Council · Beijing Nova Program
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