Anion Intercalation into Graphite Cathodes in K<sup>+</sup>‐containing High‐Voltage Electrolytes: Problems Associated with Counter Anodes

Park, Chunguk; Han, Su Cheol; Pyo, Myoungho

doi:10.1002/bkcs.11330

Cited by 5 publications

(5 citation statements)

References 24 publications

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“…Column chart representing the atomic percentage (vertical axis) of each different components present in each edge measured at three charge states [discharged (2.50 V), neutral (OCV), and charged (4.25 V)] for the three coordination polymers studied here as obtained from fittings to the XPS data (pages S7–S9, Supporting Information) and assigned according to the literature. ,− …”

Section: Results and Discussionmentioning

confidence: 99%

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

et al. 2020

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Coordination polymers represent a suitable model to study redox mechanisms in materials where both metal cation and ligand undergo electrochemical reactions and are capable to proceed through reversible multielectron-transfer processes with insertion of cation and anion into their open structures. Designing new coordination polymers I for electrochemical energy storage with improved performance relays also on the understanding of their structure-properties relationship. Here, we present a family of copper-based coordination polymer with hexafunctionalized benzene ligands forming a kagome-type layered structure, where the inuence of the functional groups in their structure and electrochemical properties is investigated. Their chemical and structural properties have been explored by means of PXRD, and FTIR and Raman spectroscopies, followed by investigation of their electrochemical performance in Li half-cells by CV and galvanostatic cycling techniques. Ex-situ PXRD, Raman, XPS and ToF-SIMS measurements of cycled electrodes have been carried out providing insights into the redox mechanism of these copper-based coordination polymers as positive electrode materials.

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Section: Results and Discussionmentioning

confidence: 99%

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

et al. 2020

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“…Due to their polarity, salts obtained by the Zincke reaction are known to be purified with difficulty . When reactions are conducted on large scale, however, the expected salts can be purified by recrystallization . Regarding compounds 2a – v , they could be separated from the dinitroaniline 4 and from the excess of amine by chromatography on reversed phase .…”

Section: Resultsmentioning

confidence: 99%

Microwaves and Aqueous Solvents Promote the Reaction of Poorly Nucleophilic Anilines with a Zincke Salt

et al. 2016

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The Zincke reaction allows the transformation of primary amines into their respective N-alkylated or N-arylated pyridinium salts. While nucleophilic primary amines (typically, aliphatic primary amines) often lead to quantitative reactions and has been documented profusely, the use of poorly nucleophilic amines still requires an in depth account. To date, the lack of nucleophilicity of the amines is redhibitory. The subject addressed in this article is a series of primary amines deriving from aniline having been engaged in Zincke reactions. Efficient transformations were obtained, even when conducted on electronically deactivated, eventually also sterically hindered, substrates. This was achieved by the combined use of microwave activation and aqueous solvents. Under our conditions, the role of water revealed indeed crucial to avoid the self-degradation of the Zincke salt, the reagent of the reaction.

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“…Park et al. [ 171 ] investigated the influence of FEC concentration (1–5%) and found that K + ion transport is inhibited by the SEI even at low FEC concentrations. Furthermore, other carbon anode materials such as mesocarbon microbeads (MCMB), graphene oxide, and sugar‐based hard carbon also exhibited similar issues in electrolytes containing FEC.…”

Section: Challenges and Strategiesmentioning

confidence: 99%

“…[170] However, the FEC additive also formed a passivation layer on the graphite anode and thereby inhibited K + ion transport, indicating that FEC is incompatible with graphite anodes. Park et al [171] investigated the influence of FEC concentration (1-5%) and found that K + ion transport is inhibited by the SEI even at low FEC concentrations. Furthermore, other carbon anode materials such as mesocarbon microbeads (MCMB), graphene oxide, and sugar-based hard carbon also exhibited similar issues in electrolytes containing FEC.…”

Section: Electrolyte Optimizationmentioning

confidence: 99%

Recent Advances in Layered Metal‐Oxide Cathodes for Application in Potassium‐Ion Batteries

Nathan

Kim

et al. 2022

Advanced Science

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To meet future energy demands, currently, dominant lithium‐ion batteries (LIBs) must be supported by abundant and cost‐effective alternative battery materials. Potassium‐ion batteries (KIBs) are promising alternatives to LIBs because KIB materials are abundant and because KIBs exhibit intercalation chemistry like LIBs and comparable energy densities. In pursuit of superior batteries, designing and developing highly efficient electrode materials are indispensable for meeting the requirements of large‐scale energy storage applications. Despite using graphite anodes in KIBs instead of in sodium‐ion batteries (NIBs), developing suitable KIB cathodes is extremely challenging and has attracted considerable research attention. Among the various cathode materials, layered metal oxides have attracted considerable interest owing to their tunable stoichiometry, high specific capacity, and structural stability. Therefore, the recent progress in layered metal‐oxide cathodes is comprehensively reviewed for application to KIBs and the fundamental material design, classification, phase transitions, preparation techniques, and corresponding electrochemical performance of KIBs are presented. Furthermore, the challenges and opportunities associated with developing layered oxide cathode materials are presented for practical application to KIBs.

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Anion Intercalation into Graphite Cathodes in K⁺‐containing High‐Voltage Electrolytes: Problems Associated with Counter Anodes

Cited by 5 publications

References 24 publications

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

Microwaves and Aqueous Solvents Promote the Reaction of Poorly Nucleophilic Anilines with a Zincke Salt

Recent Advances in Layered Metal‐Oxide Cathodes for Application in Potassium‐Ion Batteries

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Anion Intercalation into Graphite Cathodes in K+‐containing High‐Voltage Electrolytes: Problems Associated with Counter Anodes

Cited by 5 publications

References 24 publications

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

Reversible Energy Storage in Layered Copper-Based Coordination Polymers: Unveiling the Influence of the Ligand’s Functional Group on Their Electrochemical Properties

Microwaves and Aqueous Solvents Promote the Reaction of Poorly Nucleophilic Anilines with a Zincke Salt

Recent Advances in Layered Metal‐Oxide Cathodes for Application in Potassium‐Ion Batteries

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Product

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Anion Intercalation into Graphite Cathodes in K⁺‐containing High‐Voltage Electrolytes: Problems Associated with Counter Anodes