Hollow Carbon Nanofiber-Encapsulated Sulfur Cathodes for High Specific Capacity Rechargeable Lithium Batteries

Nano Letters ◽  
2011 ◽  
Vol 11 (10) ◽  
pp. 4462-4467 ◽  
Author(s):  
Guangyuan Zheng ◽  
Yuan Yang ◽  
Judy J. Cha ◽  
Seung Sae Hong ◽  
Yi Cui
2018 ◽  
Vol 6 (39) ◽  
pp. 19107-19112 ◽  
Author(s):  
Kai Feng ◽  
Fuxiang Wang ◽  
Hongzhang Zhang ◽  
Xianfeng Li ◽  
Huamin Zhang

A NASICON-type cathode material Li3Cr(MoO4)3 for advanced rechargeable lithium batteries shows high specific capacity.


2009 ◽  
Vol 186 (2) ◽  
pp. 496-499 ◽  
Author(s):  
Jingyu Zhang ◽  
Zhiping Song ◽  
Lizhi Zhan ◽  
Jing Tang ◽  
Hui Zhan ◽  
...  

1998 ◽  
Vol 548 ◽  
Author(s):  
Leland H. Manhart ◽  
Jun John Xu ◽  
Fabrice Coustier ◽  
Stefano Passerini ◽  
Boone B. Owens ◽  
...  

ABSTRACTVarious forms of vanadium pentoxide, including xerogel, aerogel, and aerogel-like forms, were prepared by sol-gel synthesis and processed by novel procedures following synthesis. It was demonstrated that the intrinsic thermodynamics of lithium intercalation of the ARG and ARG-like materials prepared by solvent exchange processes involving methyl formate (MF/ARG and MF/ARG-xslike) are identical, while they are drastically different from those of the parent XRG, which gives rise to significantly increased specific energies for the MF/ARG or MF/ARG-like as lithium intercalation hosts. All three forms are capable of reversibly intercalating up to four moles of Li+ ions per mole of V205 electrochemically and can be cathode candidates for rechargeable lithium batteries. Various processing methods for fabricating composite electrodes with the XRG led to specific capacity in the range of 300 to 350 mAh/g at C4Li/ 20 rate, and good cyclability.


1995 ◽  
Vol 393 ◽  
Author(s):  
Christine A. Frysz ◽  
Xiaoping Shui ◽  
D. D. L. Chung

ABSTRACTSubmicron carbon filaments used in place of carbon black as porous reduction electrodes in carbon limited lithium batteries in plate and jellyroll configurations with the BCX (bromine chloride in thionyl chloride) catholyte gave a specific capacity (at 2 V cut-off) of up to 8700 mAh/g carbon, compared to a value of up to 2900 mAh/g carbon for carbon black. The high specific capacity per g carbon (demonstrating superior carbon efficiency) for the filament electrode is partly due to the filaments' processability into sheets as thin as 0.2 mm with good porosity and without a binder, and partly due to the high catholyte absorptivity and high rate of catholyte absorption of the filament electrode.


RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 93048-93056 ◽  
Author(s):  
Mohammed Adnan Mezaal ◽  
Limin Qu ◽  
Guanghua Li ◽  
Rui Zhang ◽  
Jiang Xuejiao ◽  
...  

Nickel-rich layered lithium transition-metal oxides have been studied intensively as high-energy positive-electrode materials for lithium batteries because of their high specific capacity and relatively low-cost.


2006 ◽  
Vol 11-12 ◽  
pp. 407-412 ◽  
Author(s):  
Bing Chuan Li ◽  
Wei Kun Wang ◽  
Zhi Feng Fu ◽  
An Bang Wang ◽  
Ke Guo Yuan

Lithium rechargeable battery is a new type of battery developed in recent years. The studies on this system are naturally focused on the cathode material. The cathode material with conducting skeleton and energy-storing side lines was reported and a novel material carbyne polysulfide was studied. This paper was to explore a convenient approach for preparing carbyne polysulfide. The products obtained by co-heating polyvinylidene chloride(PVDC) and pulverized sulfur in ammonia environment was characterized by DSC /TG, IR, Raman spectrums and elemental analysis. And the product had been proved to have a sp2 hybride carbon skeleton with polysulfide attached on it, which resembles the theoretical structure of carbyne polysulfide. The material with favorable sulfur contents exhibited high specific capacity up to 705 mAh/g in the initial cycle and a stable reversible capacity approximately 420 mAh/g.


2012 ◽  
Vol 499 ◽  
pp. 114-119 ◽  
Author(s):  
Hong Ying Hao ◽  
Zi Qiang Shao

The carboxymethyl cellulose (CMC) with the different degree of substitution, which was synthesized in the mixed agent system of isopropanol and ethanol and water, was used in rechargeable Lithium batteries. The electrochemical performance of the 9,10-anthracenedione (AQ) electrodes with different binders were investigated by galvanostatic discharge/charge, cyclic voltammetry and electrochemical impedance spectroscopy techniques. Tested as the binding material in a lithium cell at room temperature, the CMC electrode showed better electrochemical performance compared to a PVDF electrode. It exhibited a specific capacity of up to 214 mAh.g-1at the initial discharge, and its specific capacity was maintained at 62 mAh.g-1after 50 cycles. In addition, it had better stability during the charge and discharge processes. Furthermore, the electrochemical performance of the CMC with lower degree of substitution(DS) was better.


2018 ◽  
Vol 2 (4) ◽  
pp. 803-810 ◽  
Author(s):  
Yidan Song ◽  
Yuanrui Gao ◽  
Hongren Rong ◽  
Hao Wen ◽  
Yanyong Sha ◽  
...  

Naphthalenediimide diamine-functionalized graphene oxide exhibited a high specific capacity and good cyclic stability as a cathode material of lithium batteries.


2014 ◽  
Vol 2 (38) ◽  
pp. 16199-16207 ◽  
Author(s):  
Shuangqiang Chen ◽  
Xiaodan Huang ◽  
Bing Sun ◽  
Jinqiang Zhang ◽  
Hao Liu ◽  
...  

Multi-shelled hollow carbon nanospheres with a high specific surface area of 1050 m2g−1were prepared by an aqueous emulsion approach, which achieved a high percentage of sulfur loading (86 wt%). When applied as cathodes in lithium–sulfur batteries, the composites delivered a high specific capacity of 1350 mA h g−1at a current rate of 0.1 C, significantly enhanced cyclability and high rate performance.


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