Single- and double-redox reaction of poly(2,2,6,6-tetramethylpiperidinyloxy-4-vinylmethacrylate)/ordered mesoporous carbon composite nitroxide radical polymer battery

Kim, Jae Kwang

doi:10.1016/j.jpowsour.2020.228670

Cited by 11 publications

(10 citation statements)

References 28 publications

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“…8a. 238 In the initial state, the theoretical specic capacity is 111 mA h g −1 . The nitroxide radical of PTMA is oxidized to oxoammonium cations (-N + ]O) with the formation of an electron upon charging to 4.0 V. During discharging to 3.0 V, the oxoammonium cations return to the nitroxide radicals.…”

Section: Improvement In the Cathodementioning

confidence: 99%

Designing strategies of advanced electrode materials for high-rate rechargeable batteries

Zhang

Wen

et al. 2023

J. Mater. Chem. A

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Section: Improvement In the Cathodementioning

confidence: 99%

Designing strategies of advanced electrode materials for high-rate rechargeable batteries

Zhang

Wen

et al. 2023

J. Mater. Chem. A

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“…Despite enormous efforts, PTMA still suffers from low electrical conductivity and high solubility, which limits its practical use in rechargeable batteries. To circumvent such problems, several strategies have been proposed, including cross-linking the polymer, [51,187] changing the backbone to conjugated framework, [188,189] and physically mixing [180,[190][191][192][193] or chemically grafting with nanocarbon materials. [194][195][196] Recently, Zhou et al [197] fabricated PTMA-grafted MWNT composites (MWNT-g-PTMAs) by a facile in situ polymerization method (Figure 17a).…”

Section: Nitroxide Radical Compoundsmentioning

confidence: 99%

p‐Type Redox‐Active Organic Electrode Materials for Next‐Generation Rechargeable Batteries

Kye

Kang

Jang

et al. 2022

Adv Energy and Sustain Res

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Type redox-active organic materials (ROMs) draw increasing attention as a promising alternative to conventional inorganic electrode materials in secondary batteries due to high redox voltage, fast rate capability, environment friendliness, and abundance. First, fundamental properties of the p-type ROMs regarding the energy levels and the anion-related chemistry are briefly introduced. Then, the development progress of the p-type ROMs is outlined in this review by classifying them according to their redox centers. The molecular design strategies employed for improving their electrochemical performance are discussed to guide further research. Finally, a summary of the electrochemical performance achieved, regarding voltage, specific energy with power, and cycle stability, is provided with perspectives.

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“…[22] TEMPO-based organic materials gained lots of attention on account of fast electron transfer, adequate thermal stability, and relatively simple electrode design. [23] We innovatively combined PASP and TEMPO (nitroxide radicals), endowing the polymer electrode with degradability and redox activity. The TEMPO-substituted poly(aspartic acid) was denoted as PASP-TEMPO.…”

Section: Introductionmentioning

confidence: 99%

“…Utilizing Zn foil as anode and PASP-TEMPO material as cathode, the Zn/polypeptide organic radical battery (ORB) was firstly constructed in waterbased electrolytes. Ascribed to the two-electron redox reaction of nitroxide radicals [23,24] on side chains of PASP-TEMPO, the Zn/ PASP-TEMPO ORB delivered a discharge capacity of 80.0 mAh g À 1 which was almost double discharge capacity (41.6 mAh g À 1 ) of only one electron reaction in 1 m ZnCl 2 electrolyte. Excellent rate performance and fast charge-discharge at a current density of 18 A g À 1 was achieved by the fast faradaic reaction of nitroxide radicals and the high ionic conductivity of the aqueous electrolyte in three different electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Polypeptide Radical Cathode for Aqueous Zn‐Ion Battery with Two‐Electron Storage and Faster Charging Rate

Deng

Teng

et al. 2022

ChemSusChem

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The rapidly growing demand for batteries has led to a lack of global mineral resources and rechargeable organic batteries are paid extensive attention, owing to the abundance resources, light weight, and high flexibility of organic electrodes. However, most organic electrodes that use aliphatic backbones are nondegradable, leading to unsustainability when active sites fail. In this study, a poly(aspartic acid) polypeptide (PASP) with amide links in the backbone and nitroxide radical pendant groups in the side chains is synthesized by modifying the polypeptides with 4-amino-2,2,6,6-tetramethylpiperidine. In combination with a Zn anode, the PASP-TEMPO composite electrode exhibits rapid charge-discharge and superior cycling stability with reversible two-electron redox reaction in aqueous electrolyte. The Zn/PASP-TEMPO organic radical battery delivers a discharge capacity of around 80 mAh g À 1 by two-electron reaction and charge-discharge rates of up to 18 A g À 1 . Because the redox reaction process of the nitroxyl radical turning into oxoammonium follows a p-type mechanism that interacts with an anion, three electrolytes with different anions are tested in the Zn/PASP-TEMPO organic radical battery. Experimental results indicate that discharge plateau voltage is tunable by choosing different zinc salts as electrolytes. Capacity retention of up to 97.4 % after 500 cycles is realized in 1 m ZnClO 4 electrolyte, which can be attributed to the adjacent reaction potentials of the two-step one-electron reaction.

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Single- and double-redox reaction of poly(2,2,6,6-tetramethylpiperidinyloxy-4-vinylmethacrylate)/ordered mesoporous carbon composite nitroxide radical polymer battery

Cited by 11 publications

References 28 publications

Designing strategies of advanced electrode materials for high-rate rechargeable batteries

Designing strategies of advanced electrode materials for high-rate rechargeable batteries

p‐Type Redox‐Active Organic Electrode Materials for Next‐Generation Rechargeable Batteries

Polypeptide Radical Cathode for Aqueous Zn‐Ion Battery with Two‐Electron Storage and Faster Charging Rate

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