Exploring the potential of polymer battery cathodes with electrically conductive molecular backbone

2015 ◽  
Vol 3 (21) ◽  
pp. 11189-11193 ◽  
Author(s):  
Alexandru Vlad ◽  
Kevin Arnould ◽  
Bruno Ernould ◽  
Louis Sieuw ◽  
Julien Rolland ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
High Energy ◽  
Electrically Conductive ◽  
Conducting Materials ◽  
Molecular Backbone ◽  
Polymer Battery

A π-conjugated polymer is developed and shown to hold potential towards the development of organic redox ion- and electron-conducting materials for high-energy batteries.

High energy density lithium-ion batteries with carbon nanotube anodes

2010 ◽  
Vol 25 (8) ◽  
pp. 1636-1644 ◽  
Author(s):  
Brian J. Landi ◽  
Cory D. Cress ◽  
Ryne P. Raffaelle
Keyword(s):  
Carbon Nanotube ◽  
Energy Density ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Electrically Conductive ◽  
Single Walled Carbon Nanotube ◽  
Battery Energy ◽  
Graphite Composites

Recent advancements using carbon nanotube electrodes show the ability for multifunctionality as a lithium-ion storage material and as an electrically conductive support for other high capacity materials like silicon or germanium. Experimental data show that replacement of conventional anode designs, which use graphite composites coated on copper foil, with a freestanding silicon-single-walled carbon nanotube (SWCNT) anode, can increase the usable anode capacity by up to 20 times. In this work, a series of calculations were performed to elucidate the relative improvement in battery energy density for such anodes paired with conventional LiCoO2, LiFePO4, and LiNiCoAlO2 cathodes. Results for theoretical flat plate prismatic batteries comprising freestanding silicon-SWCNT anodes with conventional cathodes show energy densities of 275 Wh/kg and 600 Wh/L to be theoretically achievable; this is a 50% improvement over today's commercial cells.

A novel type of polymer battery with a high energy density

1988 ◽  
pp. 1545 ◽  
Author(s):  
Akira Ohtani ◽  
Masao Abe ◽  
Hiroyuki Higuchi ◽  
Takeo Shimidzu
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Polymer Battery

Porous asphalt/graphene composite for supercapacitors with high energy density at superior power density without added conducting materials

2017 ◽  
Vol 5 (41) ◽  
pp. 21757-21764 ◽  
Author(s):  
Miao Zhang ◽  
Zhenhe Sun ◽  
Tengfei Zhang ◽  
Bin Qin ◽  
Dong Sui ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
Parameter Optimization ◽  
High Energy ◽  
High Energy Density ◽  
Porous Asphalt ◽  
Graphene Composite ◽  
Conducting Materials ◽  
Cost Efficient

Full parameter optimization enables a cost efficient supercapacitor with high energy density at superior power density.

scholarly journals The Effect of Dopant Type on The Morphology and Electrical Properties of Hollow Polyester Fabric

2019 ◽  
Vol 2 (3) ◽  
pp. 577-582
Author(s):  
Hidayet Köse ◽  
Suat Çetiner
Keyword(s):  
Electrical Properties ◽  
Polyester Fabric ◽  
Preparation Technique ◽  
Electrically Conductive ◽  
Electrical Insulator ◽  
Thermal And Oxidative Stability ◽  
Conducting Materials ◽  
Electrical Conducting ◽  
Intrinsically Conducting Polymers

Intrinsically conducting polymers (ICPs) have been intensively the subject of research since these polymers have superlative electrical and thermophysical properties. Due to the low hydrogen content and aromatic structure, they show perfect chemical, thermal, and oxidative stability and are practically insoluble in all common solvents. Also these polymers are latently electrical conducting materials, especially when doped. Polypyrole (PPy) is a very promising conducting polymer. It can be in easy way processes and has many interesting electrical properties. Also ıt is chemically and thermally stable. Like many other fully aromatic polymers, PPy is an electrical insulator, however, when oxidized it becomes an electrical conductor.The conductivity of PPy strongly consists in the preparation technique, and on the polymer additives and can be increased by about two orders of magnitude. In this study, electrically conductive hollow fabrics were prepared via ın situ chemical polymerization method and scanning electron microscopy (SEM) and electrical properties of conductive hollow fabrics were invesigated.

Encapsulating NH4Br in metal organic framework: achieving remarkable proton conduction in wide relative humidity range

2021 ◽  
Author(s):  
Yihan Du ◽  
Kun Zhang ◽  
Ziya Liu ◽  
Shaoxian Liu ◽  
Guoji Huang ◽  
...  
Keyword(s):  
Energy Density ◽  
Metal Organic Framework ◽  
Electronic Devices ◽  
High Energy ◽  
High Energy Density ◽  
Conducting Materials ◽  
Relative Humidity Range ◽  
Metal Organic ◽  
Humidity Range ◽  
Organic Framework

Proton conducting materials are key components for constructing high-energy-density electronic devices. In this work, by accumulation of NH4Br into the nanospace of classical metal organic framework MIL-101-Cr, the highest proton...

Imaging and Microanalysis of Non-Conducting Materials in the Lowvoltage FE-SEM: Challenges and Strategies

2000 ◽  
Vol 6 (S2) ◽  
pp. 754-755
Author(s):  
Jingyue Liu
Keyword(s):  
Electron Irradiation ◽  
Dynamic Process ◽  
Dwell Time ◽  
High Energy ◽  
Electron Bombardment ◽  
High Energy Electron ◽  
Electron Hole ◽  
Secondary Electrons ◽  
Conducting Materials ◽  
History Of

Under high-energy electron bombardment, electrical charge can rapidly build up in non-conducting materials. The electron-induced charging process is very complex and is still not well understood. Injection of energetic electrons into insulators generates electron-hole pairs which can be localized at pre-existing or newly created charge-trap centers. Charging of insulators results from a balance between the emission of secondary electrons and the diffusion and trapping of incident electrons. In the SEM, charging is usually a dynamic process: the degree of specimen charging depends on the energy and the dose of the incident electrons, the image magnification, the pixel dwell time (PDT), and the history of the electron irradiation of the specimen. Although the degree of charging can be reduced by varying the energy of the incident electrons, charging of non-conducting specimens cannot be completely eliminated due to variations in the local SE yield across the specimen surface and the presence of charge-traps inside the specimen.

Excited state dynamics of organic semi-conducting materials

2015 ◽  
Vol 177 ◽  
pp. 111-119 ◽  
Author(s):  
Kenneth P. Ghiggino ◽  
Andrew J. Tilley ◽  
Benjamin Robotham ◽  
Jonathan M. White
Keyword(s):  
Excited State ◽  
Conjugated Polymer ◽  
Variable Temperature ◽  
Emission Spectra ◽  
Time Resolved ◽  
Absorption And Emission ◽  
X Ray ◽  
X Ray Crystallography ◽  
Conducting Materials ◽  
Absorption And Emission Spectroscopy

Time-resolved absorption and emission spectroscopy has been applied to investigate the dynamics of excited state processes in oligomer models for semi-conducting organic materials. Following the photo-excitation of a pentamer oligomer that is a model for the conjugated polymer MEH-PPV, an ultrafast component of a few picoseconds is observed for the decay of the initially formed transient species. Variable temperature absorption and emission spectra combined with X-ray crystallography and calculations support the assignment of this rapid relaxation process to an excited state conformational rearrangement from non-planar to more planar molecular configurations. The implications of the results for the overall photophysics of conjugated polymers are considered.

Photo-patternable, stretchable and electrically conductive graft copolymers of poly(3-hexylthiophene)

2019 ◽  
Vol 10 (46) ◽  
pp. 6278-6289 ◽  
Author(s):  
Min Wang ◽  
Seyoung Kee ◽  
Paul Baek ◽  
Matthew S. Ting ◽  
Zoran Zujovic ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Graft Copolymers ◽  
Side Chains ◽  
Electrically Conductive

A multifunctional conjugated polymer (CP) of poly(3-hexylthiophene) grafted with photo-patternable and stretchable side chains is reported.

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