Energy storage in structural composites by introducing CNT fiber/polymer electrolyte interleaves

In this study, two schemes of solar electrical power generation are designed and compared according to solar collection area minimization. The one comprises the parabolic trough collector, dual-tank of molten salt heat storage, and Organic Rankine cycle. The other consists of photovoltaic cell, polymer electrolyte membrane water electrolyzer, and polymer electrolyte membrane fuel cell. The effects of irradiation value, environmental temperature, and energy storage type on thermodynamic performance were investigated. The results indicated that the solar irradiation value had a more obvious effect on the PV (photovoltaic) cell performance than environmental temperature, and the PTC (parabolic trough concentrator) performance was improved with the increases of solar irradiation value and environmental temperature. The environmental temperature effect was negligible; however, the influence of irradiation value was obvious. Irradiation value had a positive effect on the former system, whereas it demonstrated the opposite for the latter. The latter system had much lower efficiency than the former, due to the low conversion efficiency between hydrogen energy and electrical energy in the polymer electrolyte membrane water electrolyzer and fuel cell. Stated thus, the latter system is appropriate for the power generation system with non-energy storage, and the former system is promising in the power generation system with energy storage.

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Towards re-electrification of hydrogen obtained from the power-to-gas process by highly efficient H2/O2 polymer electrolyte fuel cells

RSC Advances ◽

10.1039/c4ra11868e ◽

2014 ◽

Vol 4 (99) ◽

pp. 56139-56146 ◽

Cited By ~ 17

Author(s):

Felix N. Büchi ◽

Marcel Hofer ◽

Christian Peter ◽

Urs D. Cabalzar ◽

Jérôme Bernard ◽

...

Keyword(s):

Fuel Cells ◽

Energy Storage ◽

Electric Power ◽

Polymer Electrolyte ◽

Water Electrolysis ◽

Polymer Electrolyte Fuel Cells ◽

Pure Oxygen ◽

Electrolysis Process ◽

Highly Efficient ◽

Power To Gas

In the power-to-gas process, hydrogen, produced by water electrolysis, is used for storage of excess renewable electric power. Pure oxygen is a byproduct of the electrolysis process. Using pure oxygen as the oxidant in polymer electrolyte fuel cells can increase the efficiency of the power-to-hydrogen-to-power energy storage chain.

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Internal Polymer Electrolyte Membrane Fuel Cell/energy Storage Hybrid Power Systems

ECS Meeting Abstracts ◽

10.1149/ma2005-02/22/839 ◽

2005 ◽

Keyword(s):

Energy Storage ◽

Fuel Cell ◽

Power Systems ◽

Polymer Electrolyte ◽

Polymer Electrolyte Membrane ◽

Hybrid Power Systems ◽

Electrolyte Membrane ◽

Hybrid Power ◽

Cell Energy

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Characteristics of Glycerolized Chitosan: NH4NO3-Based Polymer Electrolyte for Energy Storage Devices with Extremely High Specific Capacitance and Energy Density Over 1000 Cycles

Polymers ◽

10.3390/polym12112718 ◽

2020 ◽

Vol 12 (11) ◽

pp. 2718

Author(s):

Shujahadeen B. Aziz ◽

M. A. Brza ◽

Iver Brevik ◽

M. H. Hamsan ◽

Rebar T. Abdulwahid ◽

...

Keyword(s):

Energy Storage ◽

Energy Density ◽

Polymer Electrolyte ◽

Specific Capacitance ◽

Electrochemical Techniques ◽

High Specific Capacitance ◽

Transference Number ◽

Energy Storage Devices ◽

Storage Devices ◽

The Impact

In this work, plasticized polymer electrolyte films consisting of chitosan, ammonium nitrate (NH4NO3) and glycerol for utilization in energy storage devices was presented. Various microscopic, spectroscopic and electrochemical techniques were used to characterize the concerned electrolyte and the electrical double-layer capacitor (EDLC) assembly. The nature of complexation between the polymer electrolyte components was examined via X-ray diffraction analysis. In the morphological study, field emission scanning electron microscopy (FESEM) was used to investigate the impact of glycerol as a plasticizer on the morphology of films. The polymer electrolyte (conducting membrane) was found to have a conductivity of 3.21 × 10−3 S/cm. It is indicated that the number density (n), mobility (μ) and diffusion coefficient (D) of ions are increased with the glycerol amount. The mechanism of charge storing was clarified, which implies a non-Faradaic process. The voltage window of the polymer electrolyte is 2.32 V. It was proved that the ion is responsible for charge-carrying via measuring the transference number (TNM). It was also determined that the internal resistance of the EDLC assembly lay between 39 and 50 Ω. The parameters associated with the EDLC assembly are of great importance and the specific capacitance (Cspe) was determined to be almost constant over 1 to 1000 cycles with an average of 124 F/g. Other decisive parameters were found: energy density (18 Wh/kg) and power density (2700 W/kg).

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