Study Performance of LiFePO4/Graphite Cylindrical Pouch Cell

Honggowiranto, Wagiyo; Kartini, Evvy; Sudjatno, Agus

doi:10.1088/1757-899x/924/1/012036

Cited by 2 publications

(3 citation statements)

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“…Both substrates are widely used for energy conversion and energy storage applications. [37,[54][55][56][57][58][59] We show that the role of conductive carbon is related not only to the optimal electronic path but also to the ionic path towards the electrode active material. The OSC pigment PTCDI is used as the electrode active material.…”

Section: Introductionmentioning

confidence: 82%

“…In this work we investigate the role of two different conductive carbon substrates, graphite/copper (CuC) and carbon paper (Cp), towards their charge transfer kinetics at the solid/solid and solid/liquid interface. Both substrates are widely used for energy conversion and energy storage applications [37,54–59] . We show that the role of conductive carbon is related not only to the optimal electronic path but also to the ionic path towards the electrode active material.…”

Section: Introductionmentioning

confidence: 89%

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Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

Werner

Alexander

Winkler

et al. 2021

Israel Journal of Chemistry

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Electroactive organic semiconducting pigments represent a group of very promising electrode materials for the next generation of energy conversion and storage technologies. However, most pigments suffer from high solubility in organic electrolytes and poor electrical conductivity, which have severely impeded their practical applications. Among different strategies to improve their electrochemical performance, using conductive carbon substrates to form composite electrodes is one of the most used methods to solve these problems. In this work we investigate the role of conductive carbon substrates towards their charge transfer kinetics at the solid/liquid interface with potential application for organic sodium (Na)‐ion batteries. This study reveals that the role of conductive carbon is related not only to the optimal electronic path but also to the ionic path towards the electrode active material. Perylentetracarboxylicdiimide is used as the electrode active material coated on graphite/copper and carbon paper substrates. The morphology, structure, and chemical composition of our electrodes are investigated via scanning electron microscopy, X‐ray photoelectron and Raman spectroscopy. A thorough kinetic analysis is systematically implemented by cyclic voltammetry and electrochemical impedance spectroscopy. We performed a quantitative analysis of the resistance and capacitive components of the composite electrodes using the theory of the transmission line model and electrochemical impedance spectroscopy with symmetric cells. Our results indicate that a decrease in pore resistance is key to achieve high charge transfer kinetics in electrochemical systems. This work will therefore contribute towards future, efficient electrode design with low pore resistance and high charge transfer kinetics. This may prove of great importance for the development of energy conversion and storage technologies, including heterojunction solar cells, electrocatalysts/photocatalysts for water splitting, carbon dioxide (CO2) reduction and lithium (Li)‐ and Na‐ion batteries.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 89%

Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

Werner

Alexander

Winkler

et al. 2021

Israel Journal of Chemistry

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“…per formula single solid solution phase. The research on Li x FePO 4 is still continuing [28][29][30]. …”

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confidence: 99%

A Theoretical Study of the Solid Solution Phases of LixFePO4

Yu¹,

Sun²

2020

AJPC

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For the next generation Li-battery anode materials LiFePO 4 , the forming of the solid solution phase Li x FePO 4 and the related charge/discharge mechanism are the high light topics recently. In the paper, ab-initio calculation was applied to study the formation and electronic structure of the solid solution of Li x FePO4, and a Charge/Discharge model of LiFePO 4 was set up based on the calculation results. Due to the high formation energy, Li x FePO 4 separates into FePO 4 and LiFePO 4 in bulk system under room temperature. The single solid solution phase Li x FePO 4 could exists in the nanoscale particle, and it is due to that the relative larger lattice mismatch energy. The nanoscale particle materials should have a good rating performance due to the forming of Li x FePO 4 in solid solution phase, of which the partially occupied state and the small energy gap between the VBM and the defect state could improve the intrinsic electronic conductivity. In bulk materials, the medium region, which is composed of Li x FePO 4 , is very narrow between the two phases FePO 4 and LiFePO 4 . There is a electron potential well in the region, of which the bottom is at the side of Li x FePO 4 (x<0.5). The number of electron in the well highly affects the lithium insertion and extraction. In order to efficiently transfer the electron between the potential well and the out circuit, an electron conductor network or layer should be coated on the LiFePO 4 particle.

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Study Performance of LiFePO₄/Graphite Cylindrical Pouch Cell

Cited by 2 publications

References 13 publications

Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

A Theoretical Study of the Solid Solution Phases of Li<sub>x</sub>FePO<sub>4</sub>

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Study Performance of LiFePO4/Graphite Cylindrical Pouch Cell

Cited by 2 publications

References 13 publications

Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

A Theoretical Study of the Solid Solution Phases of Li&lt;sub&gt;x&lt;/sub&gt;FePO&lt;sub&gt;4&lt;/sub&gt;

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Study Performance of LiFePO₄/Graphite Cylindrical Pouch Cell

A Theoretical Study of the Solid Solution Phases of Li<sub>x</sub>FePO<sub>4</sub>