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Inorganic Polysulfide Chemistries for Better Energy Storage Systems
Xiaona Li1, Xueliang Sun1, Biwei Xiao2,3
1Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang 315200, China.
Accounts of Chemical Research
|December 7, 2023
Summary
Inorganic polysulfides offer a conductive solution for high-energy lithium batteries, overcoming sulfur
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Sulfur-based cathode materials are promising for next-generation lithium batteries.
- Their insulating nature causes degradation and hinders practical application, especially in solid-state systems.
- Enhancing electronic and ionic conductivity is crucial for high-energy batteries.
Purpose of the Study:
- To summarize current knowledge on inorganic polysulfides for energy storage.
- To highlight their intrinsic conductivity and electrochemical properties.
- To discuss factors influencing their performance and future research directions.
Main Methods:
- Reviewing state-of-the-art publications on inorganic polysulfides.
- Analyzing fundamental aspects, chemical, and structural properties.
- Illustrating approaches to enhance conductivity in sulfur-based materials.
Main Results:
- Inorganic polysulfides exhibit intrinsic conductivity, unlike elemental sulfur.
- Materials like selenium-sulfur solutions and metal polysulfides show promise.
- Optimized conductivity balances reversible capacity for high-energy applications.
Conclusions:
- Inorganic polysulfides are vital for high-reversibility, high-energy batteries.
- Their unique structures and properties offer advantages over traditional sulfur cathodes.
- Further research into inorganic polysulfides will drive advancements in energy storage.
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