Journal ArticleDOI
Powering Lithium–Sulfur Battery Performance by Propelling Polysulfide Redox at Sulfiphilic Hosts
Zhe Yuan,Hong-Jie Peng,Ting-Zheng Hou,Jia-Qi Huang,Cheng-Meng Chen,Dai-Wei Wang,Xin-Bing Cheng,Fei Wei,Qiang Zhang +8 more
TLDR
The propelling redox reaction is not limited to Li-S system, and it is foresee the reported strategy herein can be applied in other high-power devices through the systems with controllable redox reactions.Abstract:
Lithium–sulfur (Li–S) battery system is endowed with tremendous energy density, resulting from the complex sulfur electrochemistry involving multielectron redox reactions and phase transformations. Originated from the slow redox kinetics of polysulfide intermediates, the flood of polysulfides in the batteries during cycling induced low sulfur utilization, severe polarization, low energy efficiency, deteriorated polysulfide shuttle, and short cycling life. Herein, sulfiphilic cobalt disulfide (CoS2) was incorporated into carbon/sulfur cathodes, introducing strong interaction between lithium polysulfides and CoS2 under working conditions. The interfaces between CoS2 and electrolyte served as strong adsorption and activation sites for polar polysulfides and therefore accelerated redox reactions of polysulfides. The high polysulfide reactivity not only guaranteed effective polarization mitigation and promoted energy efficiency by 10% but also promised high discharge capacity and stable cycling performance dur...read more
Citations
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Journal ArticleDOI
Toward Safe Lithium Metal Anode in Rechargeable Batteries: A Review.
TL;DR: This review presents a comprehensive overview of the lithium metal anode and its dendritic lithium growth, summarizing the theoretical and experimental achievements and endeavors to realize the practical applications of lithium metal batteries.
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
Advances in lithium-sulfur batteries based on multifunctional cathodes and electrolytes
TL;DR: In this article, a review of recent developments in tackling the dissolution of polysulfides, a fundamental problem in Li-S batteries, focusing on both experimental and computational approaches to tailor the chemical interactions between the sulfur host materials and poly sulfides is presented.
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
More Reliable Lithium-Sulfur Batteries: Status, Solutions and Prospects.
TL;DR: The Li-S battery is a complex device and its useful energy density is determined by a number of design parameters, most of which are often ignored, leading to the failure to meet commercial requirements, so how to pave the way for reliableLi-S batteries is discussed.
References
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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
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.
Journal ArticleDOI
Lithium–Sulfur Batteries: Electrochemistry, Materials, and Prospects
TL;DR: Constructing S molecules confined in the conductive microporous carbon materials to improve the cyclability of Li-S batteries serves as a prospective strategy for the industry in the future.
Journal ArticleDOI
Graphene-Wrapped Sulfur Particles as a Rechargeable Lithium–Sulfur Battery Cathode Material with High Capacity and Cycling Stability
Hailiang Wang,Yuan Yang,Yongye Liang,Joshua T. Robinson,Yanguang Li,Ariel Jackson,Yi Cui,Hongjie Dai +7 more
TL;DR: In this article, the synthesis of a graphene-sulfur composite material by wrapping poly(ethylene glycol) (PEG) coated submicrometer sulfur particles with mildly oxidized graphene oxide sheets decorated by carbon black nanoparticles was reported.
Journal ArticleDOI
Sulphur–TiO2 yolk–shell nanoarchitecture with internal void space for long-cycle lithium–sulphur batteries
Zhi Wei Seh,Weiyang Li,Judy J. Cha,Guangyuan Zheng,Yuan Yang,Matthew T. McDowell,Po-Chun Hsu,Yi Cui,Yi Cui +8 more
TL;DR: This work demonstrates the design of a sulphur-TiO(2) yolk-shell nanoarchitecture with internal void space to accommodate the volume expansion of sulphur, resulting in an intact TiO( 2) shell to minimize polysulphide dissolution.