Organic‐Catholyte‐Containing Flexible Rechargeable Lithium Batteries

Park, Minjoon; Shin, Dong-Seon; Ryu, Jaechan; Choi, Min; Park, Noejung; Hong, Sung You; Cho, Jaephil

doi:10.1002/adma.201502329

Cited by 91 publications

(54 citation statements)

References 34 publications

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“…Nevertheless, this perspective is helpful to understand many physics problems related to battery operation, for example, the electrolyte "window" as illustrated in Figure 6a. [20][21][22][23] Deviation from such an estimation has also been reported. Otherwise, electrolyte reaction occurs as a result of electron transfer.…”

Section: Working Principles Of Lithium Ion and Lithium Batteriesmentioning

confidence: 90%

Computer Simulation of Cathode Materials for Lithium Ion and Lithium Batteries: A Review

2018

Energy & Environ Materials

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Driven by the increasing demand for electrochemical energy storage, lithium ion and lithium batteries have been the subject of tremendous scientific endeavors for decades. However, limited energy density, which is bottlenecked by available high-density cathode materials, has become a critical issue to be solved. Recently, computational studies have played an increasingly important role in the search for the next-generation high-density cathode materials. Not only important insights on the battery chemistry have been revealed, but also novel material systems have been proposed. This review highlights recent progresses in the computational studies of cathode materials for lithium ion and lithium batteries. It starts from a brief introduction of the scientific background of lithium ion and lithium batteries, followed by a brief discussion of the working principles of batteries. Different computer simulation techniques are shown to originate from the same quantum mechanical treatment of many-body systems with different levels of simplifications. Progresses in computational studies of different cathode materials, including intercalation electrode, conversion compounds, sulfur, and organosulfides, are then presented in detail. Finally, the capabilities of computational techniques in the study of cathode materials are summarized, and major challenges are discussed. REVIEW Lithium Ion Batteries

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Section: Working Principles Of Lithium Ion and Lithium Batteriesmentioning

confidence: 90%

Computer Simulation of Cathode Materials for Lithium Ion and Lithium Batteries: A Review

2018

Energy & Environ Materials

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“…[129] The solubility of benzoquinone in electrolytes can be alleviated by modifying the molecular structure and loading insolubles; in this way, the electrochemical performance of benzoquinone can be improved. [129] The solubility of benzoquinone in electrolytes can be alleviated by modifying the molecular structure and loading insolubles; in this way, the electrochemical performance of benzoquinone can be improved.…”

Section: Monomeric Benzoquinonesmentioning

confidence: 99%

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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“…[240] Sanford's group designed a series of pyridine species and discovered that the promising anolyte material N-methyl-4-acetylpyridinium tetrafluoroborate, which has the advantages of two-electron transfer and low M w . [245] Recently, a solution of carbonyls in organic electrolyte has also been used as the catalyst in air batteries. Wang et al found that the supporting electrolyte also plays a vital role in the chemical stability.…”

Section: Rfbs With Nonaqueous Electrolytementioning

confidence: 99%

Molecular Engineering with Organic Carbonyl Electrode Materials for Advanced Stationary and Redox Flow Rechargeable Batteries

2017

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Organic carbonyl electrode materials that have the advantages of high capacity, low cost and being environmentally friendly, are regarded as powerful candidates for next-generation stationary and redox flow rechargeable batteries (RFBs). However, low carbonyl utilization, poor electronic conductivity and undesired dissolution in electrolyte are urgent issues to be solved. Here, we summarize a molecular engineering approach for tuning the capacity, working potential, concentration of active species, kinetics, and stability of stationary and redox flow batteries, which well resolves the problems of organic carbonyl electrode materials. As an example, in stationary batteries, 9,10-anthraquinone (AQ) with two carbonyls delivers a capacity of 257 mAh g (2.27 V vs Li /Li), while increasing the number of carbonyls to four with the formation of 5,7,12,14-pentacenetetrone results in a higher capacity of 317 mAh g (2.60 V vs Li /Li). In RFBs, AQ, which is less soluble in aqueous electrolyte, reaches 1 M by grafting -SO H with the formation of 9,10-anthraquinone-2,7-disulphonic acid, resulting in a power density exceeding 0.6 W cm with long cycling life. Therefore, through regulating substituent groups, conjugated structures, Coulomb interactions, and the molecular weight, the electrochemical performance of carbonyl electrode materials can be rationally optimized. This review offers fundamental principles and insight into designing advanced carbonyl materials for the electrodes of next-generation rechargeable batteries.

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Organic‐Catholyte‐Containing Flexible Rechargeable Lithium Batteries

Cited by 91 publications

References 34 publications

Computer Simulation of Cathode Materials for Lithium Ion and Lithium Batteries: A Review

Computer Simulation of Cathode Materials for Lithium Ion and Lithium Batteries: A Review

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

Molecular Engineering with Organic Carbonyl Electrode Materials for Advanced Stationary and Redox Flow Rechargeable Batteries

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