Reversible lithium storage behaviour of aromatic diimide dilithium carboxylates

Veerababu, M; Varadaraju, U.V.; Ramanujam, Kothandaraman

doi:10.1016/j.electacta.2016.02.030

Cited by 34 publications

(41 citation statements)

References 40 publications

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“…2a and 3 for voltage profile comparison). It is known in the literature that, LUMO of these types of compounds is spread over the aromatic core and the imide carbonyl group, 25 hence we believe that sodiation/desodiation taking place at the imide carbonyl group over the carbonyl group of carboxylate. In order to get further insights in to structural changes, ex-situ XRD studies were performed (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The CV curves of the Na 2 -BPDI reveal that sodiation/desodiation to takes place in two steps through radical anion followed by dianion formation, which is a common mechanism for carbonyl compounds (Scheme 2). 25,26 Whereas the CV curves of the Na 2 -BNDI (Fig. 1b) show a large number of peaks in the both cathodic and anodic scans, indicating sodiation/desodiation is a multistep process.…”

Section: Resultsmentioning

confidence: 99%

“…In contrast, its Li analogue studied by us for LIBs shows good cycling stability. 25 In general solubility of the active material causes rapid capacity fading as it is observed in the case of some organic materials used in LIBs, 11 but Figure 1. Cyclic voltammograms of (a) Na 2 -BPDI and (b) Na 2 -BNDI at a scan rate of 0.1 mV s −1 vs. Na/Na + .…”

Section: Resultsmentioning

confidence: 99%

“…In the first step N,N'-bis (glycinyl) pyromellitic diimide (H 2 BPDI) and N,N'-bis (glycinyl) naphthalene diimide (H 2 BNDI) were prepared as reported in the literature. 25 In the second step these imide carboxylic acids were converted into corresponding sodium salts by treating with Na 2 CO 3 in ethanol and water mixture (Scheme 1). Typically, H 2 BPDI (0.5 mmol) and Na 2 CO 3 (0.5 mmol) were dispersed in 30 mL of 1:5 v/v de-ionized water and ethanol mixture and stirred at 60…”

Section: Methodsmentioning

confidence: 99%

“…10,11 Till date many organic compounds having different structures, such as simple aromatic hydrocarbons, conjugated amines, thioethers, organodisulfides, nitroxyl radicals and aromatic carbonyls (polyimides, quinones, carboxylates) were reported for both Li and Na-ion batteries. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] In contrast to LIBs, very few organic compounds have been reported for NIBs. 10,11 Despite several advantages of organic materials, there are some challenges to be addressed.…”

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confidence: 99%

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Reversible Sodium Storage Behavior of Aromatic Diimide Disodium Carboxylates

Medabalmi

Kuanr

Ramanujam

2016

J. Electrochem. Soc.

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The synthesis, characterization and electrochemical sodiation/desodiation performance of two novel disodium diimide carboxylates, disodium salt of N,N'-bis (glycinyl) pyromellitic diimide (Na 2 -BPDI) and disodium salt of N,N'-bis (glycinyl) naphthalene diimide (Na 2 -BNDI) were reported for the first time. The Na 2 -BNDI electrode material delivers a reversible capacity of 122 mAh g −1 in the first cycle and retains a reasonable capacity of 92 mAh g −1 after 50 cycles at a current density of 50 mA g −1 , whereas a rapid capacity fading is observed in the case of Na 2 -BPDI electrode material in subsequent cycles. Ex-situ NMR and FT-IR studies confirmed that the decomposition of Na 2 -BPDI electrode material upon continuous electrochemical sodiation/desodiation process. These results demonstrate that the importance of extended conjugation, as in Na 2 -BNDI, for efficient electrochemical sodium storage in the redox active aromatic compound.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Reversible Sodium Storage Behavior of Aromatic Diimide Disodium Carboxylates

Medabalmi

Kuanr

Ramanujam

2016

J. Electrochem. Soc.

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Polyimides and Related Polymers in Battery Applications*

2023

An Introduction to Redox Polymers for Energy‐Storage Applications

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Molecular Design Strategies for Electrochemical Behavior of Aromatic Carbonyl Compounds in Organic and Aqueous Electrolytes

et al. 2019

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To sustainably satisfy the growing demand for energy, organic carbonyl compounds (OCCs) are being widely studied as electrode active materials for batteries owing to their high capacity, flexible structure, low cost, environmental friendliness, renewability, and universal applicability. However, their high solubility in electrolytes, limited active sites, and low conductivity are obstacles in increasing their usage. Here, the nucleophilic addition reaction of aromatic carbonyl compounds (ACCs) is first used to explain the electrochemical behavior of carbonyl compounds during charge–discharge, and the relationship of the molecular structure and electrochemical properties of ACCs are discussed. Strategies for molecular structure modifications to improve the performance of ACCs, i.e., the capacity density, cycle life, rate performance, and voltage of the discharge platform, are also elaborated. ACCs, as electrode active materials in aqueous solutions, will become a future research hotspot. ACCs will inevitably become sustainable green materials for batteries with high capacity density and high power density.

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Reversible lithium storage behaviour of aromatic diimide dilithium carboxylates

Cited by 34 publications

References 40 publications

Reversible Sodium Storage Behavior of Aromatic Diimide Disodium Carboxylates

Reversible Sodium Storage Behavior of Aromatic Diimide Disodium Carboxylates

Polyimides and Related Polymers in Battery Applications*

Molecular Design Strategies for Electrochemical Behavior of Aromatic Carbonyl Compounds in Organic and Aqueous Electrolytes

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