Optimization of Multi-Walled Carbon Nanotube based CF  electrodes for improved primary and secondary battery performances

Jayasinghe, Ruwantha; Thapa, Arjun; Dharmasena, Ruchira; Nguyen, Tu Quang; Pradhan, Bhabendra K.; Paudel, Hem Sharma; Jasiński, Jacek B.; Sherehiy, Andriy; Yoshio, Masaki; Суманасекера, Гамини

doi:10.1016/j.jpowsour.2013.12.076

Cited by 53 publications

(29 citation statements)

References 11 publications

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“…XPS is used to analyze the elemental composition of the fluorinated nanographite at first. As shown in Figure S3a, the C1s peaks significantly decrease after fluorination, meanwhile intense F1s peaks at about 688.35 eV appear for all the FG‐x samples, indicating the successful fluorination of the nanographite ,. The elements contents of C, F and O and the calculated F/C ratios determined by XPS measurement are shown in Table .…”

Section: Resultsmentioning

confidence: 87%

“…In recent years, various nano fluorinated carbon materials (nano-CF x ) have been developed as cathode materials of Li/CF x batteries, such as fluorinated graphene, [9] fluorinated carbon nanotubes, [10] fluorinated carbon nanofibers, [5b] fluorinated carbon nanodiscs [11] and fluorinated ordered mesoporous carbons. [12] The nano-CF x materials usually possess large specific surface area and small particle size, leading to the improved electrochemical reaction activity, fast diffusion of Li + , and the decrease of reaction resistance, thus work well at the high discharge rates in Li/CF x batteries.…”

Section: Introductionmentioning

confidence: 99%

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Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Wang

et al. 2019

ChemElectroChem

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Lithium/fluorinated carbon (Li/CFx) batteries face the problems of low rate performance and initial voltage delay. Herein, we propose a novel type of fluorinated nanographite as a cathode material for Li/CFx batteries through the direct fluorination of nanographite. The structure of fluorinated nanographite, including crystalline phase, particle size, fluorine content, and the properties of C−F bonding, strongly depend on the fluorination temperature. The fluorinated nanographite prepared at 450 °C (FG‐450) shows the highest specific capacity, 837.4 mAh g−1 at 10 mA g−1, along with a discharge plateau of 2.54 V, responding to an energy density of 2004.5 Wh kg−1. The highlights of the fluorinated nanographite are to deliver high rate performance and overcome the initial voltage delay. FG‐450 can be discharged at a high rate of about 3.6 C, delivering a high power density of 5460 W kg−1 with a remaining energy density of 1030.5 Wh kg−1. The good electrochemical performance of the FG‐450 sample is ascribed to the combined effect of its nanoparticle size, large specific surface area, and continuous stacking porosity.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Wang

et al. 2019

ChemElectroChem

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“…The first peak at 284.8 eV is assigned to the sp 2 hybridized C atoms in MWCNTs. The second peak at 290.4 eV is assigned to sp 3 hybridized C atoms of C-F bonds [13]. The relative intensity ratio of the first to the second peak is about 0.9:1.…”

Section: Resultsmentioning

confidence: 95%

Enhanced electrochemical activity of rechargeable carbon fluorides–sodium battery with catalysts

Shadike

Liu

et al. 2015

Carbon

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“…The content of polymer affects the discharge performance of resulting product because of the catalytic effect of HF formed by the pyrolysis of the polymer on the decomposition of CFx and on the reaction of carbon black with the volatile fluorocarbons formed by the decomposition of CFx. 63 Damien et al found graphene a good choice for fluorination. 57 Zhang et al also developed a thermal treatment by heating a mixture of CFx and citric acid which could serve as extra carbon source.…”

Section: Improving the Power Output Of Li/cfx Batteriesmentioning

confidence: 99%

Progress towards high-power Li/CF_xbatteries: electrode architectures using carbon nanotubes with CF_x

Zhang

Takeuchi

et al. 2015

Phys. Chem. Chem. Phys.

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Carbon monofluoride (CFx) has a high energy density, exceeding 2000 W h kg(-1), yet its application in primary lithium batteries is limited by its power capability. Multi-walled carbon nanotubes (CNTs) are appealing additives for high-power batteries, due to their outstanding electronic transport properties, high aspect ratio necessitating low volume fraction for percolation, and high tensile strength. This perspective describes the current state of the art in lithium-carbon monofluoride (Li/CFx) batteries and highlights the opportunities for the development of high-power Li/CFx batteries via utilization of carbon nanotubes. In this report, we generated several electrode architectures using CFx/CNT combinations, and demonstrated the effectiveness of CNTs in enhancing the rate capability and energy density of Li/CFx batteries. First, we investigated the resistivity of CFx combined with CNTs and compared the CFx/CNT composites with conventional carbon additives. Second, we built CFx-CNT electrodes without metallic current collectors using CNTs as substrates, and compared their electrochemical performance with conventional CFx electrodes using aluminum foil as a current collector. Furthermore, we fabricated multi-layered CNT-CFx-CNT composite electrodes (sandwich electrodes) and studied the impact of the structure on the performance of the electrode. Our work demonstrates some of the opportunities for utilization of CNTs in CFx electrodes and the resultant implementation of CFx as a battery cathode in next-generation high-power batteries.

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Optimization of Multi-Walled Carbon Nanotube based CF electrodes for improved primary and secondary battery performances

Cited by 53 publications

References 11 publications

Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Enhanced electrochemical activity of rechargeable carbon fluorides–sodium battery with catalysts

Progress towards high-power Li/CF_xbatteries: electrode architectures using carbon nanotubes with CF_x

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Optimization of Multi-Walled Carbon Nanotube based CF electrodes for improved primary and secondary battery performances

Cited by 53 publications

References 11 publications

Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Fluorinated Nanographite as a Cathode Material for Lithium Primary Batteries

Enhanced electrochemical activity of rechargeable carbon fluorides–sodium battery with catalysts

Progress towards high-power Li/CFxbatteries: electrode architectures using carbon nanotubes with CFx

Contact Info

Product

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Progress towards high-power Li/CF_xbatteries: electrode architectures using carbon nanotubes with CF_x