Physicochemical properties of raw starches and their impact on electrochemical activity – Biomolecule-based anode material

Pigłowska, Marita; Kurc, Beata; Kubiak, Adam

doi:10.1016/j.bioelechem.2020.107619

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…The method of interpreting the impedance spectrum for anode materials used in lithium-ion cells is presented in [ 45 ]. The correlation of the impedance spectra for the charging state turns out to be problematic due to the several-fold increase and decrease in impedance during the discharge.…”

Section: Resultsmentioning

confidence: 99%

The Electrochemical Stability of Starch Carbon as an Important Property in the Construction of a Lithium-Ion Cell

Kurc

Pigłowska

Rymaniak

2021

Entropy

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This paper shows use of starch-based carbon (CSC) and graphene as the anode electrode for lithium-ion cell. To describe electrochemical stability of the half-cell system and kinetic parameters of charging process in different temperatures, electrochemical impedance spectroscopy (EIS) measurement was adopted. It has been shown that smaller resistances are observed for CSC. Additionally, Bode plots show high electrochemical stability at higher temperatures. The activation energy for the SEI (solid–electrolyte interface) layer, charge transfer, and electrolyte were in the ranges of 24.06–25.33, 68.18–118.55, and 13.84–15.22 kJ mol−1, respectively. Moreover, the activation energy of most processes is smaller for CSC, which means that this electrode could serve as an eco-friendly biodegradable lithium-ion cell element.

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Section: Resultsmentioning

confidence: 99%

The Electrochemical Stability of Starch Carbon as an Important Property in the Construction of a Lithium-Ion Cell

Kurc

Pigłowska

Rymaniak

2021

Entropy

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“…The capacity retention of the cells is an important parameter and a high-performance cell not only needs to keep an excellent long cycling stability but also needs to have an excellent coulombic efficiency. Before the carbonization process, which was the subject of our recent work [69], where raw starches were used as the active anode materials, the specific discharge capacities of the half-cells were equal to 418, 385, 360, 266 mAh g −1 at the current density 50 mA g −1 after the first cycle for WS, CS, RS, PS, respectively. Therefore, in the following manuscript, the thermal modification significantly increased the capacity of the half-cells, making them more appropriate for industrial applications.…”

Section: Charge-discharge Testmentioning

confidence: 99%

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Pigłowska

Kurc

Rymaniak

2021

Waste Biomass Valor

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The main aim of this research is the examination of the physicochemical properties and their impact on the electrochemical activity of carbon materials obtained from the starch of different botanical origin (SCs). The obtained materials are compared to graphene nanoplatelets (GNPs) of different particle sizes (5 and 25 µm) applied as an anode active material for high-performance lithium-ion cells. SCs were obtained via thermal carbonization and this process enables an obtainment of better sorption properties compared to GNPs. The excellent electrochemical properties are mainly attributed to the good DLi+ (3.03 × 10−13–7.64 × 10−11 cm2 s−1 for SCs and 7.60 × 10−13–5.42 × 10−12 cm2 s−1 for GNPs) and relatively small resistances (EIS). However, the primary focus is on the specific capacity and cyclability. The capacity retentions of CSC cycled at 1 mA g−1, 10 mA g−1, 50 mA g−1, 1 mA g−1 for 50 cycles are 98%, 99%, 96%, 94% with specific capacities equal to 820, 800, 790, 1000 mAh g−1, respectively. The 5GNPs and 25GNPs may present a much smaller reversible capacity of 650, 600 mAh g−1 at 10 mA g−1. The thermal modification process of starches is simple, safe and widely applied, providing new paths for rational engineering of anode materials for LIBs. Moreover, the applied materials are easily available worldwide and are promising in the well-known Green Chemistry aspect making the cells more biodegradable. Graphic Abstract

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Biopolymers in Electronics

Ghozali¹,

Triwulandari²,

Restu³

2022

Springer Series on Polymer and Composite Materials

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Physicochemical properties of raw starches and their impact on electrochemical activity – Biomolecule-based anode material

Cited by 5 publications

References 38 publications

The Electrochemical Stability of Starch Carbon as an Important Property in the Construction of a Lithium-Ion Cell

The Electrochemical Stability of Starch Carbon as an Important Property in the Construction of a Lithium-Ion Cell

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Biopolymers in Electronics

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