Can I read Freestanding TiO~2~ Nanoparticle-Embedded High Directional Carbon Composite Host for High-Loading Low-Temperature Lithium–Sulfur Batteries on EtoBox?

Freestanding TiO~2~ Nanoparticle-Embedded High Directional Carbon Composite Host for High-Loading Low-Temperature Lithium–Sulfur Batteries by Jing Li; Lupeng Liu; Jiaxin Wang; Yongbing Zhuang; Bao Wang; Shumin Zheng is a Engineering article available to read on EtoBox.

What is Freestanding TiO~2~ Nanoparticle-Embedded High Directional Carbon Composite Host for High-Loading Low-Temperature Lithium–Sulfur Batteries about?

Improving the low-temperature performance of lithium-sulfur batteries is significant for future applications. Meanwhile, a low temperature often leads to sluggish charge transfer kinetics and low energy output. Herein, we designed a thick freestanding TiO 2 nanoparticle-embedded three-dimensional carbon composite (TiO 2 @C@CSC) host with high directional channels, aiming at achieving a high-performance low-temperature lithium-sulfur battery. The carbon-coated TiO 2 nanoparticles (TiO 2 @C) are derived from polyimide-coated TiO 2 nanoparticles and embedded in the channels. The chitosan-foam-derived carbon framework (CSC) has vertically aligned channels, which kinetically accelerates ion/electron transport and precisely confines sulfur/ polysulfides within its channels. TiO 2 @C nanoparticles could facilitate the adsorption and conversion of polysulfides. The combination of vertically aligned channels and TiO 2 @C nanoparticles further provides a chemical gradient that prevents the diffusion of polysulfides and enhances the reaction kinetics at low temperatures. The designed host also has enough accommodation space, which is beneficial to improving the mass loading and utilization ef

Who reads Freestanding TiO~2~ Nanoparticle-Embedded High Directional Carbon Composite Host for High-Loading Low-Temperature Lithium–Sulfur Batteries?

Author

Jing Li; Lupeng Liu; Jiaxin Wang; Yongbing Zhuang; Bao Wang; Shumin Zheng

Publisher

American Chemical Society (ACS)

Published

2023

Language

EN

Field

Engineering (Physical Sciences)