Rational Design of a Gel–Polymer–Inorganic Separator with Uniform Lithium-Ion Deposition for Highly Stable Lithium–Sulfur Batteries

2019 ◽  
Vol 11 (39) ◽  
pp. 35788-35795 ◽  
Author(s):  
Pengfei Wang ◽  
Jiejun Bao ◽  
Kezhong Lv ◽  
Na Zhang ◽  
Zhi Chang ◽  
...  
Keyword(s):  
Rational Design ◽  
Lithium Ion ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Ion Deposition

Rational design of NiCo2S4@MoS2 ball-in-ball heterostructure nanospheres for advanced lithium-sulfur batteries

2021 ◽  
pp. 138268
Author(s):  
Lei Yan ◽  
Zexian Zhang ◽  
Fang Yu ◽  
Jinxing Wang ◽  
Tao Mei ◽  
...  
Keyword(s):  
Rational Design ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Carbon Networks ◽  
Carbon Coated ◽  
Lithium Sulfur ◽  
Initial Capacity

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.

Investigation of materials and convection for lithium sulfur batteries

2015 ◽  
Author(s):  
◽  
Donald A. Dornbusch
Keyword(s):  
Active Material ◽  
Lithium Ion ◽  
Metal Electrode ◽  
University Of Missouri ◽  
Lithium Sulfur Batteries ◽  
Before And After ◽  
Bet Theory ◽  
Comsol Simulation ◽  
The University ◽  
Lithium Sulfur

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The following dissertation investigates different aspects of lithium-sulfur batteries. Lithium-sulfur batteries have a higher theoretical capacity than current lithium-ion chemistries. First, a study on the lithium-metal electrode and the formation of dendrites investigates how flow impacts the failure from dendrites of these electrodes. Second, a study relying on charging to avoid the soluble intermediates generated through charge/discharge of sulfur-cathodes which are the primary cause of capacity fade in these systems. Third, sulfur is polymerized through radical polymerization with diene comonomers in order to reduce the solubility and mobility of the intermediates generated during cycling. Using Brunauer-Emmett-Teller (BET) theory, the surface area and pore volume can be observed before and after cycling demonstrating the amount of mobility the active material has during cycling. Finally, a study on the conduction phenomena in convection batteries is studied through a literature review and COMSOL simulation.

scholarly journals Multifunctional bio carbon: a coir pith waste derived electrode for extensive energy storage device applications

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23663-23670 ◽  
Author(s):  
V. Mullaivananathan ◽  
P. Packiyalakshmi ◽  
N. Kalaiselvi
Keyword(s):  
Lithium Ion ◽  
Sodium Ion ◽  
Storage Device ◽  
Sodium Ion Batteries ◽  
Energy Storage Device ◽  
Lithium Sulfur Batteries ◽  
Device Applications ◽  
Electrical Double Layer Capacitors ◽  
Double Layer Capacitors ◽  
Lithium Sulfur

Suitability of CPC electrode for sodium-ion batteries (SIBs) and electrical double layer capacitors (EDLCs) has been demonstrated through the present work, apart from our report on lithium-ion and lithium-sulfur batteries.

Novel melamine-based porous organic polymers: synthesis, characterizations, morphology modifications, and their applications in lithium-sulfur batteries

2021 ◽  
Author(s):  
Haiyang Liu ◽  
Jiaxing Wang ◽  
Miao SUN ◽  
Yu Wang ◽  
Runing Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Organic Polymer ◽  
Energy Storage Devices ◽  
Shuttle Effect ◽  
Physical Constraints ◽  
Lithium Sulfur

Abstract Lithium-sulfur (Li-S) batteries have been considered to be one of the most promising energy storage devices in the next generation. However, the insulating properties of sulfur and the shuttle effect of soluble lithium polysulfides (LiPSs) seriously hinder the practical application of Li-S batteries. In this paper, a novel porous organic polymer (HUT3) was prepared based on the polycondensation between melamine and 1,4-phenylene diisocyanate. The micro morphology of HUT3 was improved by in-situ growth on different mass fractions of rGO (5%, 10%, 15%), and the obtained HUT3-rGO composites were employed as sulfur carriers in Li-S batteries with promoted the sulfur loading ratio and lithium ion mobility. Attributed to the synergistic effect of the chemisorption of polar groups and the physical constraints of HUT3 structure, HUT3-rGO/S electrodes exhibits excellent capacity and cyclability performance. For instance, HUT3-10rGO/S electrode exhibits a high initial specific capacity of 950 mAh g-1 at 0.2 C and retains a high capacity of 707 mAh g-1 after 500 cycles at 1 C. This work emphasizes the importance of the rational design of the chemical structure and opens up a simple way for the development of cathode materials suitable for high-performance Li-S batteries.

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