High Energy Density and High Power Density All-Solid-State Li Sulfur Batteries
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United States of America Patent
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Aug 29, 2024
app pub date -
Feb 23, 2024
filing date -
Feb 28, 2023
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Abstract
A MoS2@polyacrylonitrile-derived porous carbon fiber core-shell structure for use in all-solid-state lithium-sulfur batteries (ASSLSBs) is disclosed. The core-shell structure comprises a core comprising polyacrylonitrile-derived porous carbon fibers (PPCF) with surface layer pores; and a shell comprising a MoS2 nanosheet that is uniformly distributed on the surface of the core. Methods for making the core-shell structure are also disclosed, as well as methods of using the core-shell structure for ASSLSBs. The use of a MoS2@PPCF core-shell structure in an ASSLSB resulted in improved electrochemical performance with ultrahigh specific capacity, high cycling stability, and high-capacity retention.
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