A novel electrolyte additive for gel type valve regulated lead acid batteries: Sulfur doped graphene oxide

Mansuroglu, Abdulmecit; Gençten, Metin; Arvas, Melih Beşir; Şahin, Mutlu; Bozdoğan, Abdürrezzak; Şahin, Yücel

doi:10.1002/er.7189

Cited by 32 publications

(16 citation statements)

References 56 publications

(187 reference statements)

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“…[7][8][9][10][11][12] Lead-acid batteries, redox flow batteries and Li-ion batteries are the most common battery systems used in energy storage. [13][14][15][16][17][18] However, these systems have some disadvantages. Since high acid concentrations are used in these systems, it is harmful to environmental health.…”

Section: Introductionmentioning

confidence: 99%

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One‐stepsynthesis of nitrogen‐doped graphene powders and application of them ashigh‐performancesymmetrical coin cell supercapacitors in different aqueous electrolyte

Arvas

Karatepe

Gençten

et al. 2022

Intl J of Energy Research

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Summary In this study, symmetric supercapacitors in the form of coin cells were produced by using N‐doped graphene powders as electrode components. Nitrogen‐doped graphene powders were prepared by Yucel's Method with cyclic voltammetry at different potential ranges for selective modification of the powders with functional groups. Electrochemical, spectroscopic, and microscopic characterizations of N‐doped graphene powders were carried out. The formation of graphene layers was supported by scanning electron microscopy and Raman analysis. Functional groups formed on the surfaces of N‐doped graphene powders were determined by X‐ray photoelectron spectroscopy. Specific capacitances of symmetric supercapacitors prepared with N‐doped graphene powders were determined by cyclic charge‐discharge tests. The highest specific capacitance, energy and power values were determined as 235.3 F.g−1, 158.2 Wh.kg−1 and 1760 W.kg−1, respectively.

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Section: Introductionmentioning

confidence: 99%

“…Batteries and supercapacitors are frequently used in the storage of electrical energy generated from renewable energy sources 7‐12 . Lead‐acid batteries, redox flow batteries and Li‐ion batteries are the most common battery systems used in energy storage 13‐18 . However, these systems have some disadvantages.…”

Section: Introductionmentioning

confidence: 99%

One‐stepsynthesis of nitrogen‐doped graphene powders and application of them ashigh‐performancesymmetrical coin cell supercapacitors in different aqueous electrolyte

Arvas

Karatepe

Gençten

et al. 2022

Intl J of Energy Research

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“…The need for energy in today’s knowledge-based societies is growing, and energy storage technologies are becoming increasingly important [ 1 ]. Although traditional energy sources such as coal and petroleum generate the majority of the needed energy, their negative impacts on the environment and ecosystem have become a significant issue for the planet [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Poly(vinyl alcohol)–tetraethylorthosilicate Hybrid Gel Electrolyte for Lead Storage Battery

Chikkatti

Sajjan

Kalahal

et al. 2022

Gels

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The gel electrolyte significantly influences gel valve-regulated lead acid battery performance. To address this, the paper describes the preparation of novel polymer gel electrolytes using poly (vinyl alcohol) (PVA) and tetraethylorthosilicate (TEOS) for valve-regulated lead–acid batteries. FTIR technique is used to confirm the chemical reaction between PVA and TEOS. Electrochemical analyses such as cyclic voltammetry and electrochemical impedance spectroscopy were applied to optimize the concentration of PVA-TEOS polymer gel electrolyte. The optimum concentration of polymer gel electrolyte was determined as 20 wt% of TEOS in PVA (PE-1) with higher anodic peak and lower Rs and Rct values. The Galvanostatic charge–discharge tests were performed on the optimized gel system prototype battery. The highest capacity of 6.86 × 10−5 Ah at a current density of 0.2 mA cm−2 was achieved with an excellent capacity retention ratio of 85.7% over 500 cycles. The exceptional cycle performance and high capacity make PVA-TEOS gel electrolyte a promising candidate for practical battery application.

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“…[21,22] Carbon-based materials are widely used as electrode materials as they are cost effective and they have high surface areas and chemical sensors. [23,24] Nowadays, graphene has been researched among these materials, due to its high electrical conductivity, large surface area, high mechanical resistance and adjustability of its electronic futures. [25,26] Graphene doped by heteroatoms can improve its electronic structure and other internal features.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon‐based materials, the oxide forms of the metals and conductive polymers are often used in supercapacitor as electrode materials [21,22] . Carbon‐based materials are widely used as electrode materials as they are cost effective and they have high surface areas and chemical sensors [23,24] . Nowadays, graphene has been researched among these materials, due to its high electrical conductivity, large surface area, high mechanical resistance and adjustability of its electronic futures [25,26] .…”

Section: Introductionmentioning

confidence: 99%

New Approach Synthesis of S, N Co‐Doped Graphenes for High‐Performance Supercapacitors

et al. 2022

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In this study, S, N co‐doped graphene‐based electrodes were synthesized by a one‐step, environmentally friendly and low−Cost method known as Yucel's method in the solutions consisting of different concentration ratios of sulfuric and nitric acids and different cycles in the certain potential range for the first time in the literature. The prepared S, N co‐doped graphene‐based electrodes were characterized by spectroscopic, microscopic and electrochemical methods. In electrochemical characterization, cyclic voltammetry and electrochemical impedance spectroscopy were used. The supercapacitor performances were examined by cyclic charge‐discharge tests of the electrodes in the specified supporting electrolyte solution. Areal capacitance values varied from 71.48 mF.cm−2 to 893.2 mF.cm−2 at a current density of 10 mA cm−2 in the prepared electrodes.

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A novel electrolyte additive for gel type valve regulated lead acid batteries: Sulfur doped graphene oxide

Cited by 32 publications

References 56 publications

One‐stepsynthesis of nitrogen‐doped graphene powders and application of them ashigh‐performancesymmetrical coin cell supercapacitors in different aqueous electrolyte

One‐stepsynthesis of nitrogen‐doped graphene powders and application of them ashigh‐performancesymmetrical coin cell supercapacitors in different aqueous electrolyte

A Novel Poly(vinyl alcohol)–tetraethylorthosilicate Hybrid Gel Electrolyte for Lead Storage Battery

New Approach Synthesis of S, N Co‐Doped Graphenes for High‐Performance Supercapacitors

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