Journal ArticleDOI
Polydopamine-Coated, Nitrogen-Doped, Hollow Carbon–Sulfur Double-Layered Core–Shell Structure for Improving Lithium–Sulfur Batteries
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TLDR
A double-layered core-shell structure of polymer-coated carbon-sulfur was developed and it was demonstrated that the sulfur not only successfully penetrated through the porous carbon shell but also aggregated along the inner wall of the carbon shell, which, for the first time, provided visible and convincing evidence that sulfur preferred diffusing into the hollow carbon rather than aggregating in/on the porous wall ofThe carbon.Abstract:
To better confine the sulfur/polysulfides in the electrode of lithium–sulfur (Li/S) batteries and improve the cycling stability, we developed a double-layered core–shell structure of polymer-coated carbon–sulfur. Carbon–sulfur was first prepared through the impregnation of sulfur into hollow carbon spheres under heat treatment, followed by a coating polymerization to give a double-layered core–shell structure. From the study of scanning transmission electron microscopy (STEM) images, we demonstrated that the sulfur not only successfully penetrated through the porous carbon shell but also aggregated along the inner wall of the carbon shell, which, for the first time, provided visible and convincing evidence that sulfur preferred diffusing into the hollow carbon rather than aggregating in/on the porous wall of the carbon. Taking advantage of this structure, a stable capacity of 900 mA h g–1 at 0.2 C after 150 cycles and 630 mA h g–1 at 0.6 C after 600 cycles could be obtained in Li/S batteries. We also demo...read more
Citations
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Journal ArticleDOI
Designing high-energy lithium–sulfur batteries
TL;DR: This review aims to summarize major developments in the field of lithium-sulfur batteries, starting from an overview of their electrochemistry, technical challenges and potential solutions, along with some theoretical calculation results to advance the understanding of the material interactions involved.
Journal ArticleDOI
Review on High-Loading and High-Energy Lithium–Sulfur Batteries
TL;DR: In this paper, the authors highlight the recent progress in high-sulfur-loading Li-S batteries enabled by hierarchical design principles at multiscale, particularly, basic insights into the interfacial reactions, strategies for mesoscale assembly, unique architectures, and configurational innovation in the cathode, anode, and separator.
Journal ArticleDOI
Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures
TL;DR: The unique properties and niche applications of the hollow structures in diverse fields, including micro-/nanocontainers and reactors, optical properties and applications, magnetic properties, energy storage, catalysis, biomedical applications, environmental remediation, and sensors are discussed.
Journal ArticleDOI
Polydopamine Surface Chemistry: A Decade of Discovery.
TL;DR: The current state of the art in polydopamine coating methods is described, efforts underway to uncover and tailor the complex structure and chemical properties of polyDopamine are described, and emerging trends and needs are identified, including the use of dopamine analogs, nitrogen-free polyphenolic precursors, and improvement of coating mechanical properties.
Journal ArticleDOI
Balancing surface adsorption and diffusion of lithium-polysulfides on nonconductive oxides for lithium-sulfur battery design.
Xinyong Tao,Jianguo Wang,Chong Liu,Haotian Wang,Hong-Bin Yao,Guangyuan Zheng,Zhi Wei Seh,Qiuxia Cai,Weiyang Li,Guangmin Zhou,Chenxi Zu,Yi Cui,Yi Cui +12 more
TL;DR: In this paper, an oxide selection method was proposed to balance the optimization between sulfide-adsorption and diffusion on the oxides, which showed that better surface diffusion leads to higher sulfide species on electrodes.
References
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Journal ArticleDOI
Mussel-Inspired Surface Chemistry for Multifunctional Coatings
TL;DR: Inspired by the composition of adhesive proteins in mussels, dopamine self-polymerization is used to form thin, surface-adherent polydopamine films onto a wide range of inorganic and organic materials, including noble metals, oxides, polymers, semiconductors, and ceramics.
Journal ArticleDOI
Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Journal ArticleDOI
Li-O2 and Li-S batteries with high energy storage.
Peter G. Bruce,Stefan Freunberger,Laurence J. Hardwick,Laurence J. Hardwick,Jean-Marie Tarascon +4 more
TL;DR: The energy that can be stored in Li-air and Li-S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed.
Journal ArticleDOI
Lithium Batteries and Cathode Materials
TL;DR: This paper will describe lithium batteries in more detail, building an overall foundation for the papers that follow which describe specific components in some depth and usually with an emphasis on the materials behavior.
Journal ArticleDOI
A highly ordered nanostructured carbon–sulphur cathode for lithium–sulphur batteries
TL;DR: In this paper, the authors report the feasibility to approach such capacities by creating highly ordered interwoven composites, where conductive mesoporous carbon framework precisely constrains sulphur nanofiller growth within its channels and generates essential electrical contact to the insulating sulphur.