High-performance all-solid-state lithium–sulfur batteries with sulfur/carbon nano-hybrids in a composite cathode

2018 ◽  
Vol 6 (46) ◽  
pp. 23345-23356 ◽  
Author(s):  
Yibo Zhang ◽  
Ting Liu ◽  
Qinghua Zhang ◽  
Xue Zhang ◽  
Shuo Wang ◽  
...  

The shuttle effect poses great challenges to the safety and cycle lifetime of lithium–sulfur (Li–S) batteries.

Author(s):  
Chenhui WANG ◽  
Nobuyuki Sakai ◽  
Yasuo Ebina ◽  
Takayuki KIKUCHI ◽  
Monika Snowdon ◽  
...  

Lithium-sulfur batteries have high promise for application in next-generation energy storage. However, further advances have been hindered by various intractable challenges, particularly three notorious problems: the “shuttle effect”, sluggish kinetics...


2021 ◽  
pp. 413-418
Author(s):  
Atif S. Alzahrani ◽  
Mitsutoshi Otaki ◽  
Daiwei Wang ◽  
Yue Gao ◽  
Timothy S. Arthur ◽  
...  

2021 ◽  
Author(s):  
Dongke Zhang ◽  
Ting Huang ◽  
Pengfei Zhao ◽  
Ze Zhang ◽  
Xingtao Qi ◽  
...  

Abstract Due to the low conductivity of sulfur and the dissolution of polysulfides, the research and application of lithium-sulfur (Li-S) batteries have encountered certain resistance. Increasing conductivity and introducing polarity into the sulfur host can effectively overcome these long-standing problems. Herein, We first prepared Co3W3C@ C@ CNTs / S material and used it in the cathode of lithium-sulfur batteries, The existence of carboxylated CNTs can form a conductive network, accelerate the transmission of electrons and improve the rate performance, and polar Co3W3C can form a strong interaction with polysulfide intermediates, effectively inhibiting its shuttle effect, improving the utilization of sulfur cathode electrodes, and improving the capacity and cycle stability. The Co3W3C@C@CNTs / S electrode material has a capacity of 1,093 mA h g-1 at a 0.1 A g− 1 and 482 mA h g-1 at 5 A g− 1. Even after 500 cycles of 2 A g− 1, the capacity of each cycle is only reduced by 0.08%. The excellent stability of this material can provide a new idea for the future development of lithium-sulfur batteries.


RSC Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 2260-2266 ◽  
Author(s):  
Lifeng Cui ◽  
Yanan Xue ◽  
Suguru Noda ◽  
Zhongming Chen

We report a synthesis of a self-supporting composite cathode film, wherein aluminum foil current collector is replaced by FWCNTs and sulfur particles are uniformly wrapped by graphene oxide along with FWCNTs.


Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1989 ◽  
Author(s):  
Wei Dong ◽  
Lingqiang Meng ◽  
Xiaodong Hong ◽  
Sizhe Liu ◽  
Ding Shen ◽  
...  

Lithium-sulfur batteries are very promising next-generation energy storage batteries due to their high theoretical specific capacity. However, the shuttle effect of lithium-sulfur batteries is one of the important bottlenecks that limits its rapid development. Herein, physical and chemical dual adsorption of lithium polysulfides are achieved by designing a novel framework structure consisting of MnO2, reduced graphene oxide (rGO), and carbon nanotubes (CNTs). The framework-structure composite of MnO2/rGO/CNTs is prepared by a simple hydrothermal method. The framework exhibits a uniform and abundant mesoporous structure (concentrating in ~12 nm). MnO2 is an α phase structure and the α-MnO2 also has a significant effect on the adsorption of lithium polysulfides. The rGO and CNTs provide a good physical adsorption interaction and good electronic conductivity for the dissolved polysulfides. As a result, the MnO2/rGO/CNTs/S cathode delivered a high initial capacity of 1201 mAh g−1 at 0.2 C. The average capacities were 916 mAh g−1, 736 mAh g−1, and 547 mAh g−1 at the current densities of 0.5 C, 1 C, and 2 C, respectively. In addition, when tested at 0.5 C, the MnO2/rGO/CNTs/S exhibited a high initial capacity of 1010 mAh g−1 and achieved 780 mAh g−1 after 200 cycles, with a low capacity decay rate of 0.11% per cycle. This framework-structure composite provides a simple way to improve the electrochemical performance of Li-S batteries.


2019 ◽  
Vol 7 (22) ◽  
pp. 13679-13686 ◽  
Author(s):  
Dezhi Yang ◽  
Liang He ◽  
Yu Liu ◽  
Wenqi Yan ◽  
Shishuo Liang ◽  
...  

An acetylene black modified gel polymer electrolyte was prepared to simultaneously solve the problems of shuttle effect and lithium dendrite growth for high-performance Li–S batteries.


2020 ◽  
Vol 7 (19) ◽  
pp. 2001303
Author(s):  
Xuesong Yin ◽  
Liu Wang ◽  
Yeongae Kim ◽  
Ning Ding ◽  
Junhua Kong ◽  
...  

2017 ◽  
Vol 7 (17) ◽  
pp. 1602923 ◽  
Author(s):  
Xiayin Yao ◽  
Ning Huang ◽  
Fudong Han ◽  
Qiang Zhang ◽  
Hongli Wan ◽  
...  

Author(s):  
Jia-Jia Yuan ◽  
Qingran Kong ◽  
Zheng Huang ◽  
You-Zhi Song ◽  
Mingyang Li ◽  
...  

The commercial application of lithium-sulfur batteries is mainly restricted by quick capacity decay and poor cycle life due to the shuttle effect, insulate nature of sulfur, and cathode structure pulverization....


Sign in / Sign up

Export Citation Format

Share Document