Chemical reduction method for industrial application of undoped polypyrrole electrodes in lithium-ion batteries

Bengoechea, Miguel; Boyano, Iker; Miguel, Óscar; Cantero, I.; Ochoteco, Estíbalitz; Pomposo, José A.; Grande, Hans‐Jürgen

doi:10.1016/j.jpowsour.2006.01.051

Cited by 38 publications

(25 citation statements)

References 32 publications

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“…Using a previously reported method for the reduction of pure PPy powder by sodium borohydride (NaBH 4 ), electrodes containing both AC and PPy can be reduced, resulting in an OCP of − 0.1 V versus SHE (Fig. 2) 32 . with five different PPy percentages: 0, 10, 25, 50 and 100%.…”

Section: Resultsmentioning

confidence: 99%

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A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

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new types of energy storage are needed in conjunction with the deployment of solar, wind and other volatile renewable energy sources and their integration with the electric grid. no existing energy storage technology can economically provide the power, cycle life and energy efficiency needed to respond to the costly short-term transients that arise from renewables and other aspects of grid operation. Here we demonstrate a new type of safe, fast, inexpensive, long-life aqueous electrolyte battery, which relies on the insertion of potassium ions into a copper hexacyanoferrate cathode and a novel activated carbon/polypyrrole hybrid anode. The cathode reacts rapidly with very little hysteresis. The hybrid anode uses an electrochemically active additive to tune its potential. This high-rate, high-efficiency cell has a 95% round-trip energy efficiency when cycled at a 5C rate, and a 79% energy efficiency at 50C. It also has zero-capacity loss after 1,000 deep-discharge cycles.

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Section: Resultsmentioning

confidence: 99%

“…The chemical reduction of the PPy was carried out by immersing the electrodes for 20 min in a 0.1 M solution of NaBH 4 as previously described in the paper by Bengoechea et al 32 The reduction process may also be performed on the raw PPy powder, but this could lead to material degradation if stored in air.…”

Section: Methodsmentioning

confidence: 99%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

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“…Therefore, some organic solid compounds may be preferable host materials for SIBs due to their low cost, easy processing, lightness, softness and structural diversity. [6][7][8][9] In principle, the flexibility and mobility of the long chain within the polymer matrix can provide the elastic loose space and path for ionic diffusion and deinsertion/insertion, particularly for larger sodium ion. Among organic host materials, more attention has been paid to polypyrrole (PPy)-based cathode materials due to their low toxicity and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Observation on Sodium p-Toluenesulfonate Doped Polypyrrole Cathode for Sodium Ion Battery

HouHongying

LiaoQishu

DuanJixiang

et al. 2017

Surface Innovations

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Sodium p-toluenesulfonate (TsONa)-doped polypyrrole (PPy) was synthesized as the cathode active material of sodium ion battery by way of facile one-step electrodeposition on iron (Fe) foil. The micro-morphology and micro-structure of assynthesized TsONa/PPy/iron cathode were characterized in terms of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction; furthermore, the electrochemical Na-storage activity of TsONa/PPy/iron cathode was investigated by methods of, galvanostatic charge/discharge, cyclic voltammetry and alternating current impedance. As expected, the cauliflower-like TsONa-doped PPy particles tightly combined with the surface of the iron foil without any additional polymer binders; and also, the resultant TsONa/PPy/iron cathode delivered satisfactory electrochemical performances, mainly attributed to high Na-storage activity of PPy matrix and high electronic conductivity induced by doping of TsONa. For example, the reversible discharge capacity of TsONa/PPy/iron cathode remained about 98 mAh/g after at least 50 cycles and the corresponding coulombic efficiency was 92%, indicating high cyclic stability and reversibility of TsONa/PPy/iron cathode for sodium ion battery.

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“…Polypyrrole (PPy) has been used to construct different types of devices, due to its interesting redox, optical, electrical, and mechanical properties and stability [3,4]. PPy films are obtained by electropolymerization in oxidized form with counter-anion insertion in order to maintain the system electrical neutrality.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic investigation and characterization of polypyrrole film doped with [MeN4]2[Ni(dmit)2] complex salt

Arantes

Rocco

2010

Journal of Molecular Structure

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Chemical reduction method for industrial application of undoped polypyrrole electrodes in lithium-ion batteries

Cited by 38 publications

References 32 publications

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

Observation on Sodium p-Toluenesulfonate Doped Polypyrrole Cathode for Sodium Ion Battery

Spectroscopic investigation and characterization of polypyrrole film doped with [MeN4]2[Ni(dmit)2] complex salt

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