Energy storage in the energy transition context: A technology review

Gallo, A.; Simões-Moreira, José R.; Costa, Hirdan Katarina de Medeiros; Santos, Márcia Maria dos; Santos, Edmílson Moutinho dos

doi:10.1016/j.rser.2016.07.028

Cited by 537 publications

(390 citation statements)

References 110 publications

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“…Thus, supercapacitors (SCs) have attracted considerable attention over the last few decades because of their high-power density compared to batteries [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development of Novel and Ultra-High-Performance Supercapacitor Based on a Four Layered Unique Structure

et al. 2018

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This paper presents an electrode with a core/shell geometry and a unique four-layered porous wrinkled surface for pseudocapacitive supercapacitor applications. To design the electrode, Ni foam was used as a substrate, where the harmonious features of four constituents, ZnO (Z), NiS (N), PEDOT:PSS (P), and MnO 2 (M) improved the supercapacitor electrochemical performance by mitigating the drawbacks of each other component. Cyclic voltammetry and galvanostatic charge discharge measurements confirmed that the ZNPM hybrid electrode exhibited excellent capacitive properties in 2 M KOH compared to the ZNP, ZN, and solely Z electrodes. The ZNPM electrode showed superior electrochemical capacitive performance and improved electrical conductivity with a high specific capacitance of 2072.52 F g −1 at 5 mA, and a high energy density of 31 Wh kg −1 at a power density of 107 W kg −1 . Overall, ZNPM is a promising combination electrode material that can be used in supercapacitors and other electrochemical energy conversion/storage devices.

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“…Thus, supercapacitors (SCs) have attracted considerable attention over the last few decades because of their high-power density compared to batteries [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development of Novel and Ultra-High-Performance Supercapacitor Based on a Four Layered Unique Structure

et al. 2018

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“…Energy storage solutions are being implemented to compensate for the fluctuations in intermittent energy production [2]. Recent investigations indicate that the introduction of energy storage technologies [3,4] and routes can help to stabilize power output while also enhancing the reliability of renewable energy production [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on CO2 Methanation Process for Solar Energy Storage Compared to CO2-Based Methanol Synthesis

et al. 2017

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Abstract:The utilization of the captured CO 2 as a carbon source for the production of energy storage media offers a technological solution for overcoming crucial issues in current energy systems. Solar energy production generally does not match with energy demand because of its intermittent and non-programmable nature, entailing the adoption of storage technologies. Hydrogen constitutes a chemical storage for renewable electricity if it is produced by water electrolysis and is also the key reactant for CO 2 methanation (Sabatier reaction). The utilization of CO 2 as a feedstock for producing methane contributes to alleviate global climate changes and sequestration related problems. The produced methane is a carbon neutral gas that fits into existing infrastructure and allows issues related to the aforementioned intermittency and non-programmability of solar energy to be overcome. In this paper, an experimental apparatus, composed of an electrolyzer and a tubular fixed bed reactor, is built and used to produce methane via Sabatier reaction. The objective of the experimental campaign is the evaluation of the process performance and a comparison with other CO 2 valorization paths such as methanol production. The investigated pressure range was 2-20 bar, obtaining a methane volume fraction in outlet gaseous mixture of 64.75% at 8 bar and 97.24% at 20 bar, with conversion efficiencies of, respectively, 84.64% and 99.06%. The methanol and methane processes were compared on the basis of an energy parameter defined as the spent energy/stored energy. It is higher for the methanol process (0.45), with respect to the methane production process (0.41-0.43), which has a higher energy storage capability.

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“…The larger shares of electricity from these fluctuating sources require efficient electricity storage technologies. Examples are compressed air, batteries and flywheels (3). In this context, fuel cells and electrolysis cells become interesting for both, energy production and storage.…”

Section: Introductionmentioning

confidence: 99%

Long Term Testing of Solid Oxide Electrolysis Cells under Co-Electrolysis Conditions

Rao

Sun

Hagen³

2017

ECS Trans.

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SOECs consisting of a nickel-yttria stabilized zirconia (Ni-YSZ) fuel electrode, YSZ electrolyte and lanthanum strontium cobalt ferritegadolinium doped ceria (LSCF-GDC) composite oxygen electrode were tested under co-electrolysis (H 2 O+CO 2 ) conditions. The aim in this study was to compare the SOEC durability under co-electrolysis conditions between galvanostatic and potentiostatic modes. Specifically, the cells were operated at 0.75 A/cm 2 (galvanostatic) and at 1.2 V (potentiostatic) at 750 o C for over 1000 hours. In both modes, a larger degradation was observed initially for the first 200 hours of testing, followed by a more stable performance over longer operating times. Trends of the area specific resistance (ASR) and detailed electrochemical analysis of the cell's performance under durability conditions for both modes indicated that the degradation was predominantly due to the fuel electrode along with a slight contribution from the oxygen electrode. Microstructural analysis also confirmed the degradation of the active fuel electrode.

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Energy storage in the energy transition context: A technology review

Cited by 537 publications

References 110 publications

Development of Novel and Ultra-High-Performance Supercapacitor Based on a Four Layered Unique Structure

Development of Novel and Ultra-High-Performance Supercapacitor Based on a Four Layered Unique Structure

Experimental Investigation on CO2 Methanation Process for Solar Energy Storage Compared to CO2-Based Methanol Synthesis

Long Term Testing of Solid Oxide Electrolysis Cells under Co-Electrolysis Conditions

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