Journal ArticleDOI
Freestanding and Sandwich-Structured Electrode Material with High Areal Mass Loading for Long-Life Lithium–Sulfur Batteries
Mingpeng Yu,Junsheng Ma,Ming Xie,Hongquan Song,Fuyang Tian,Shanshan Xu,Yun Zhou,Bei Li,Wu Di,Hong Qiu,Rongming Wang +10 more
TLDR
In this article, a high-performance lithium-sulfur battery with sandwich-structured characteristic is synthesized for highperformance Li2S battery, where sulfur is impregnated in nitrogen-doped graphene and constructed as primary active material, which is further welded in the carbon nanotube/nanofibrillated cellulose (CNT/NFC) framework.Abstract:
Freestanding cathode materials with sandwich-structured characteristic are synthesized for high-performance lithium–sulfur battery. Sulfur is impregnated in nitrogen-doped graphene and constructed as primary active material, which is further welded in the carbon nanotube/nanofibrillated cellulose (CNT/NFC) framework. Interconnected CNT/NFC layers on both sides of active layer are uniquely synthesized to entrap polysulfide species and supply efficient electron transport. The 3D composite network creates a hierarchical architecture with outstanding electrical and mechanical properties. Synergistic effects generated from physical and chemical interaction could effectively alleviate the dissolution and shuttling of the polysulfide ions. Theoretical calculations reveal the hydroxyl functionization exhibits a strong chemical binding with the discharge product (i.e., Li2S). Electrochemical measurements suggest that the rationally designed structure endows the electrode with high specific capacity and excellent rate performance. Specifically, the electrode with high areal sulfur loading of 8.1 mg cm−2 exhibits an areal capacity of ≈8 mA h cm−2 and an ultralow capacity fading of 0.067% per cycle over 1000 discharge/charge cycles at C/2 rate, while the average coulombic efficiency is around 97.3%, indicating good electrochemical reversibility. This novel and low-cost fabrication procedure is readily scalable and provides a promising avenue for potential industrial applications.read more
Citations
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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.
Nitrogen-Doped Mesoporous Carbon Promoted Chemical Adsorption of Sulfur and Fabrication of High-Areal-Capacity Sulfur Cathode with Exceptional Cycling Stability for Lithium-Sulfur Batteries
TL;DR: In this article, a mesoporous nitrogen-doped carbon (MPNC)-sulfur nanocomposite is reported as a novel cathode for advanced Li-S batteries.
Journal ArticleDOI
A review of flexible lithium-sulfur and analogous alkali metal-chalcogen rechargeable batteries
TL;DR: This review has summarized the recent progress of flexible Li-S and analogous batteries, and emphasized the importance of cell packaging and flexibility evaluation, and two special flexible battery prototypes of foldable and cable-typeLi-S batteries are highlighted.
Journal ArticleDOI
Nanocellulose: a promising nanomaterial for advanced electrochemical energy storage
TL;DR: A comprehensive review of the current research activities that center on the development of nanocellulose for advanced electrochemical energy storage, with the main focus on the integration of nanoCellulose with other active materials, developing films/aerogel as flexible substrates, and the pyrolyzation of nano cellulose to carbon materials.
Journal ArticleDOI
Current Status and Future Prospects of Metal–Sulfur Batteries
TL;DR: The current state of the research indicates that lithium-sulfur cells are now at the point of transitioning from laboratory-scale devices to a more practical energy-storage application, and over 450 research articles are summarized to analyze the research progress and explore the electrochemical characteristics, cell-assembly parameters, cell -testing conditions, and materials design.
References
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Journal ArticleDOI
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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
Raman spectroscopy of graphene and graphite: Disorder, electron phonon coupling, doping and nonadiabatic effects
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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.