Effects on the Carbon Matrix as Conductor in Sulfur Electrode for Lithium/Sulfur Battery

2006 ◽  
Vol 510-511 ◽  
pp. 1082-1085 ◽  
Author(s):  
Young Jin Choi ◽  
Sang Sik Jeong ◽  
Ki Won Kim ◽  
Hyo Jun Ahn ◽  
Jou Hyeon Ahn

Lithium/sulfur battery has some problems such as low utilization of active material and poor cycle life owing to the dissolution of lithium polysulfide into electrolyte, aggregation of sulfur during charge-discharge process, and structural change of sulfur electrode. To overcome such problems, carbon nano tubes (CNTs) and graphitic nano fibers (GNFs) were added into the sulfur electrode. The addition of CNTs and GNFs having a network-like structure is expected to offer the structural stability and good electrical path of sulfur electrode. The morphology of fabricated sulfur electrode was observed by using scanning electron microscope (SEM), and the crystalline structure was characterized by using X-ray diffraction (XRD). The charge/discharge tests were conducted in the voltage range 3.2/1.5V (vs.Li) with a galvanostatic method.

2005 ◽  
Vol 486-487 ◽  
pp. 610-613 ◽  
Author(s):  
Jin Kyu Kim ◽  
Jae Won Choi ◽  
Yeon Hwa Kim ◽  
Jong Uk Kim ◽  
Jou Hyeon Ahn

The effect of mixed electrolytes and organic additives on the electrochemical performance of rechargeable lithium/sulfur battery is investigated. The mixture of organic electrolytes, DME, DIG, TEGDME, and DIOX, was prepared to have appropriate composition, and to the electrolyte were added various organic additives, such as toluene, γ-butyrolactone, and MA. They showed an improved cyclic efficiency of lithium/sulfur battery and made utilization of active material, sulfur, more effective.


2021 ◽  
Vol 34 ◽  
pp. 755-767
Author(s):  
Fang-Lei Zeng ◽  
Xin-Yu Zhou ◽  
Ning Li ◽  
An-Bang Wang ◽  
Wei-Kun Wang ◽  
...  

2008 ◽  
Vol 449 (1-2) ◽  
pp. 313-316 ◽  
Author(s):  
Young-Jin Choi ◽  
Ki-Won Kim ◽  
Hyo-Jun Ahn ◽  
Jou-Hyeon Ahn

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44160-44164 ◽  
Author(s):  
Yanrong Li ◽  
Lixia Yuan ◽  
Zhen Li ◽  
Yizi Qi ◽  
Chao Wu ◽  
...  

A pristine sulfur electrode with simple PEDOT:PSS coating achieves significant enhancement in both sulfur utilization and capacity retention.


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