What is it about?
Sulfur has been widely studied as a promising cathode material for lithium ion batteries due to its high theoretical energy density, low cost, and environmental friendliness. This study is all about the design of the suitable carbon matrix based on partially unzipped multi-walled carbon nanotubes.
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Why is it important?
The products exhibited a novel nanostructure showing the coexistence of nanotube and nanoribbon in one carbon tube. This unique nanostructure allows for good electrical conductivity with an effective encapsulating polysulfide. The synthetic method is universal method to produce porous carbon from less porous materials. In addition, their products can be also applied to other fields, such as drug delivery and hydrogen storage.
Perspectives
The partially unzipped CNTs and their derivatives may potentially be applied to other energy materials that undergo large capacity decay in high-rate. The controllable porosity and functional groups on the partially unzipped CNTs has merits in optimizing the target property in other applications.
Yo Chan Jeong
Seoul National University
Read the Original
This page is a summary of: Partially unzipped carbon nanotubes for high-rate and stable lithium–sulfur batteries, Journal of Materials Chemistry A, January 2016, Royal Society of Chemistry,
DOI: 10.1039/c5ta07818k.
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