Interlayer

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Vibha Kalra - One of the best experts on this subject based on the ideXlab platform.

  • a free standing carbon nanofiber Interlayer for high performance lithium sulfur batteries
    Journal of Materials Chemistry, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g−1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

  • A free-standing carbon nanofiber Interlayer for high-performance lithium-sulfur batteries
    Journal of Materials Chemistry A, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofiber Interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity and cycle life. Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g −1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

Patrick Denk - One of the best experts on this subject based on the ideXlab platform.

  • effect of lif metal electrodes on the performance of plastic solar cells
    Applied Physics Letters, 2002
    Co-Authors: Christoph J Brabec, Christoph Winder, Sean E. Shaheen, Serdar N Sariciftci, Patrick Denk
    Abstract:

    The insertion of thin Interlayers of LiF under the negative metal electrode (Al and Au) of bulk heterojunction solar cells significantly enhances the fill factor and stabilizes high open circuit voltages. Compared to devices without the LiF interfacial layer, the white light efficiencies increase by over 20% up to ηeff∼3.3%. Substitution of the LiF by another insulating Interlayer SiOx results in lower overall efficiencies. In the case of a LiF/Au electrode, substantial efficiency enhancement is observed compared to a pristine Au electrode and white light efficiencies up to ηeff∼2.3% are reported.

  • Effect of LiF/metal electrodes on the performance of plastic solar cells
    Applied Physics Letters, 2002
    Co-Authors: Christoph J Brabec, Christoph Winder, Sean E. Shaheen, N. Serdar Sariciftci, Patrick Denk
    Abstract:

    The insertion of thin Interlayers of LiF under the negative metal electrode (Al and Au) of bulk heterojunction solar cells significantly enhances the fill factor and stabilizes high open circuit voltages. Compared to devices without the LiF interfacial layer, the white light efficiencies increase by over 20% up to η eff ∼3.3%. Substitution of the LiF by another insulating Interlayer SiO x results in lower overall efficiencies. In the case of a LiF/Au electrode, substantial efficiency enhancement is observed compared to a pristine Au electrode and white light efficiencies up to η eff ∼2.3% are reported.© 2002 American Institute of Physics.

Richa Singhal - One of the best experts on this subject based on the ideXlab platform.

  • a free standing carbon nanofiber Interlayer for high performance lithium sulfur batteries
    Journal of Materials Chemistry, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g−1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

  • A free-standing carbon nanofiber Interlayer for high-performance lithium-sulfur batteries
    Journal of Materials Chemistry A, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofiber Interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity and cycle life. Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g −1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

Sheng Heng Chung - One of the best experts on this subject based on the ideXlab platform.

  • a free standing carbon nanofiber Interlayer for high performance lithium sulfur batteries
    Journal of Materials Chemistry, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g−1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

  • A free-standing carbon nanofiber Interlayer for high-performance lithium-sulfur batteries
    Journal of Materials Chemistry A, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofiber Interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity and cycle life. Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g −1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

Arumugam Manthiram - One of the best experts on this subject based on the ideXlab platform.

  • a free standing carbon nanofiber Interlayer for high performance lithium sulfur batteries
    Journal of Materials Chemistry, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g−1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.

  • A free-standing carbon nanofiber Interlayer for high-performance lithium-sulfur batteries
    Journal of Materials Chemistry A, 2015
    Co-Authors: Richa Singhal, Sheng Heng Chung, Arumugam Manthiram, Vibha Kalra
    Abstract:

    Free-standing porous carbon nanofiber Interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity and cycle life. Free-standing porous carbon nanofibers with tunable surface area and pore structure have been investigated as an Interlayer between the sulfur cathode and the separator to inhibit the shuttling of the intermediate polysulfides in lithium–sulfur (Li–S) batteries. Specifically, the effects of thickness, surface area, and pore size distribution of carbon nanofiber (CNF) Interlayers on the performance of Li–S batteries have been studied. The carbon nanofiber Interlayer not only reduces the electrochemical resistance but also localizes the migrating polysulfides and traps them, thereby improving the discharge capacity as well as cyclability. It was found that the optimum thickness of the Interlayer is a critical factor to achieve good cell performance, in addition to the surface area and pore structure. A high initial discharge capacity of 1549 mA h g −1 at C/5 rate, which is 92% of the theoretical capacity of sulfur, with 98% average coulombic efficiency and 83% capacity retention after 100 cycles was obtained with a meso–microporous carbon nanofiber Interlayer.