In situ synthesis of Fe(1−x)Co
                x
            F3/MWCNT nanocomposites with excellent electrochemical performance for lithium-ion batteries

Li, Jun; Xu, Shuaijun; Huang, Si; Lu, Lu; Lan, Lifang; Li, Shaofang

doi:10.1007/s10853-017-1685-2

Cited by 18 publications

(19 citation statements)

References 28 publications

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“…And the rapid insertion/deintercalation of Li + would cause the volume of FeF 3 to change constantly, resulting in the collapse of crystal structure. [2,10,83,84] The Rs of assembled batteries for F00, FC0 and FCN are 2.3, 1.9 and 3.3 Ω, respectively. Meanwhile, FC0 and FCN exhibit a larger capacity of about 152.1 and 184.9 mAh g À 1 , respectively, with long and stable platforms.…”

Section: Electrochemical Performancementioning

confidence: 99%

“…After 200 cycles, the Rs and Rct values for three samples have changed obviously. [27,83,89,90] dear author, please mention Table 2. [10,32,46,86,87] And the Rct of cycled electrodes for F00, FC0 and FCN reduced to a smaller values of about 208.2, 65.6 and 27.8Ω, respectively.…”

Section: Electrochemical Performancementioning

confidence: 99%

“…The ohmic resistance (Rs) corresponding to Li + transport in the electrolyte, a resistance (Rct) and a constant phase element (CPE) relate to the charge transfer resistance at the interface of electrode-electrolyte, Wo is the Warburg impedance associated with Li + diffusion in the FeF 3 particles. [2,10,83,84] The Rs of assembled batteries for F00, FC0 and FCN are 2.3, 1.9 and 3.3 Ω, respectively. The similar Rs values due to the same electrolyte and the same assembly components.…”

Section: Electrochemical Performancementioning

confidence: 99%

“…The minimum resistance value of Rct and maximal lithium diffusion coefficients indicated that the preferable electron-transfer behavior, superior electrochemical kinetics and lower polarization in FCN. [27,83,89,90] dear author, please mention Table 2.…”

Section: Electrochemical Performancementioning

confidence: 99%

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Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix

Zhu

et al. 2019

ChemElectroChem

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FeF 3 is favored by researchers because of its high theoretical specific capacity and high voltage. It is expected to be utilized as a cathode material for lithium-ion batteries in the future. However, the poor electronic conductivity, inferior reaction kinetics, and severe volume expansion seriously prevents its practical application. Herein, a FeF 3 @N-doped carbon nanocomposite was successfully produced by in situ fluorination and dehydration. In addition, the nanocomposite showed a reversible capacity of 84.9 mAh g À 1 for 200th cycle after cycling at a high current of 2 C, which is approximately 300 times higher than that of bare FeF 3 . Benefitting from the N-doped carbon matrix, the composite electrodes exhibited minor transfer resistance (117.4 Ω, only 44.0 % of that of bare FeF 3 ) and very low polarization voltage (ca. 0.19 V). Meanwhile, it provided a buffer for volume expansion during the insertion of Li + and maintained cycling stability. This work can supply a simple pathway for designing ultrahigh-rate and long-life FeF 3 cathode materials.

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Section: Electrochemical Performancementioning

confidence: 99%

Section: Electrochemical Performancementioning

confidence: 99%

Section: Electrochemical Performancementioning

confidence: 99%

Section: Electrochemical Performancementioning

confidence: 99%

See 2 more Smart Citations

Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix

Zhu

et al. 2019

ChemElectroChem

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“…Recently, transition-metal fluorides (TMFs) have been used as cathode materials in LIBs, and achieved high capacities and high energy densities [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The oxidation state of the metal in TMFs involves the transfer of multiple electrons/lithium ions per formula unit leading to higher theoretical volumetric capacity (up to ≈2200 mAh/cm 3 ) and higher theoretical potential (up to ≈3.5 V vs Li/Li + ).…”

Section: Introductionmentioning

confidence: 99%

Surfactant-aided impregnation of MnF2 into CNT fabrics as cathode material with high electrochemical performance for lithium ion batteries

2018

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MnF 2 infiltrated-CNT fabrics was prepared by surfactant-aided impregnation of MnSiF 6 precursors in acidtreated CNT fabric followed by annealing MnSiF 6 -loaded CNT fabric. The structural and morphological characterizations by X-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) confirmed the formation of MnF 2 nanoparticles (average size: 20-30 nm) within CNT fabric structure. Galvanostatic charge-discharge tests of CNT-MnF 2 nanocomposite fabrics showed excellent electrochemical performance and good cycle stability between 0.4 and 4.0 V vs Li/Li + . A specific capacity of 388 mAh/g was measured at 0.1C for CNT-MnF 2 fabric with 70% MnF 2 loading after 100 cycles. Stable cyclability and good rate performance were obtained at high charge-discharge cycling rates. MnF 2 loading largely affect the performance of MnF 2 infiltrated-CNT fabrics cathodes when lower than 70% MnF 2 loaded-CNT fabrics were prepared. It can be concluded that nano-sized active materials infiltrated inside conductive carbon matrix in optimized content can lead to rapid kinetics and stable performance for flexible metal fluoride-based cathode materials.

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Dual‐Dynamic Modulation of Thermal Radiation and Electromagnetic Interference Shielding with the Self‐Healing Electrochromic Device

Wang

Song

et al. 2022

Adv Materials Technologies

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There is a need to develop next generation devices for dual‐dynamic regulation of thermal radiation and electromagnetic interference (EMI) shielding to allow the precise operation of electronic components. Here, a novel, stretchable, and self‐healing electrochromic device with unprecedented dynamic tunability of thermal emittance and electromagnetic interference is developed, which exhibits the thermal emittance modulation (Δε) of 0.37 and 0.43 at 8–14 µm under different voltages and strains, respectively. Additionally, by tuning the strain, the device can achieve the change of EMI shielding efficiency (SE) of 16.1 dB due to the increase of the transmittance for electromagnetic wave between the interleaving of the fibers. Moreover, the device exhibits outstanding mechanical stability (98.7% retention of Δε at 8–14 µm and 97.7% retention of EMI SE after bending for 300 cycles), a remarkable stretching stability (99.2% retention of Δε at 8–14 µm and 98.2% retention of EMI SE after stretching for 50 cycles) and the self‐healing performance (99.8% retention of Δε at 8–14 µm and 99.6% retention of EMI SE after the self‐healing). These results indicate that the device have excellent tunability for EMI shielding and thermal management in communication, military, and smart electronics.

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In situ synthesis of Fe(1−x)Co x F3/MWCNT nanocomposites with excellent electrochemical performance for lithium-ion batteries

Cited by 18 publications

References 28 publications

Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix

Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix

Surfactant-aided impregnation of MnF2 into CNT fabrics as cathode material with high electrochemical performance for lithium ion batteries

Dual‐Dynamic Modulation of Thermal Radiation and Electromagnetic Interference Shielding with the Self‐Healing Electrochromic Device

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In situ synthesis of Fe(1−x)Co x F3/MWCNT nanocomposites with excellent electrochemical performance for lithium-ion batteries

Cited by 18 publications

References 28 publications

Improved Electrochemical Performance of FeF3 by Inlaying in a Nitrogen‐Doped Carbon Matrix

Improved Electrochemical Performance of FeF3 by Inlaying in a Nitrogen‐Doped Carbon Matrix

Surfactant-aided impregnation of MnF2 into CNT fabrics as cathode material with high electrochemical performance for lithium ion batteries

Dual‐Dynamic Modulation of Thermal Radiation and Electromagnetic Interference Shielding with the Self‐Healing Electrochromic Device

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Product

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Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix

Improved Electrochemical Performance of FeF₃ by Inlaying in a Nitrogen‐Doped Carbon Matrix