A chitosan/poly(ethylene glycol)-<i>ran</i>-poly(propylene glycol) blend as an eco-benign separator and binder for quasi-solid-state supercapacitor applications

Raja, Muhammad Asif Zahoor; Balaji, S.; Ramavath, Janraj Naik; Dhamodharan, R.; Ramanujam, Kothandaraman

doi:10.1039/c8se00530c

Cited by 56 publications

(27 citation statements)

References 37 publications

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“…Usage of the same material in separators and binders can help inhibit sharp interfaces and thus enhance ion conductivity. Chitosan‐based materials were used for this purpose in supercapacitor applications, together with biomass‐derived carbon electrodes . Here, they were blended with poly‐ (ethylene glycol)‐ ran ‐poly(propylene glycol) to improve performance.…”

Section: Electrodesmentioning

confidence: 99%

“…Importantly, as discussed above, conduction of ions through interfaces will be facilitated if the chemical environment in the electrode material is similar to the environment in the separator or electrolyte. Consequently, it might be advantageous to make binders and separators from the same biogenic polymer material and thus prevent the formation of hard interfaces …”

Section: Electrolytes and Separatorsmentioning

confidence: 99%

“…Chitosan may likewise be used as a component of the binder and separator to mitigate sharp interfaces and maximize ionic conductivity . For improved performance, it can be blended with another polymer.…”

Section: Electrolytes and Separatorsmentioning

confidence: 99%

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Sustainable Battery Materials from Biomass

Liedel

2020

ChemSusChem

143

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Sustainable sources of energy have been identified as a possible way out of today's oil dependency and are being rapidly developed. In contrast, storage of energy to a large extent still relies on heavy metals in batteries. Especially when built from biomass‐derived organics, organic batteries are promising alternatives and pave the way towards truly sustainable energy storage. First described in 2008, research on biomass‐derived electrodes has been taken up by a multitude of researchers worldwide. Nowadays, in principle, electrodes in batteries could be composed of all kinds of carbonized and noncarbonized biomass: On one hand, all kinds of (waste) biomass may be carbonized and used in anodes of lithium‐ or sodium‐ion batteries, cathodes in metal–sulfur or metal–oxygen batteries, or as conductive additives. On the other hand, a plethora of biomolecules, such as quinones, flavins, or carboxylates, contain redox‐active groups that can be used as redox‐active components in electrodes with very little chemical modification. Biomass‐based binders can replace toxic halogenated commercial binders to enable a truly sustainable future of energy storage devices. Besides the electrodes, electrolytes and separators may also be synthesized from biomass. In this Review, recent research progress in this rapidly emerging field is summarized with a focus on potentially fully biowaste‐derived batteries.

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Section: Electrodesmentioning

confidence: 99%

Section: Electrolytes and Separatorsmentioning

confidence: 99%

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Sustainable Battery Materials from Biomass

Liedel

2020

ChemSusChem

143

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“…The chitosan based ternary composite like chitosan-graphene oxide-polyanline on graphite electrode and graphene oxide-chitosan-copper on PET film possess capacitance of 609 F g −1 and 356 F g −1 , respectively [18,19]. The electrodeposited MnO 2 -chitosan on nickel foam exhibited 424 F g −1 capacitance [20]. Also, the efforts have been made to chitosan based membrane cum binder to improve the capacitance [21].…”

Section: Introductionmentioning

confidence: 99%

“…The literature depicts that chitosan can be a suitable candidate for the supercapacitor and would have highest value of capacitance when incorporated with carbon based materials and metal oxides using the substrates like graphite, nickel foil, nickel foam etc. [16][17][18][19][20]. To the best of our knowledge chitosan has not been yet used as single source as electrode material for the supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

The electrochemical performance of electrodeposited chitosan bio-nanopolymer in non-aqueous electrolyte: a new anodic material for supercapacitor

et al. 2019

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The polymeric film electrodes of chitosan are deposited by electrochemical deposition method on the stainless steel substrates. The prepared film electrodes are characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, contact angle techniques and evaluated for the supercapacitor application by studying electrochemical properties through cyclic voltammetry. The XRD study depicts nanocrystalline nature of deposited chitosan with 36 nm crystallite size. The uniform, compact and spongy chitosan thin film covers the utmost substrate surface and has hydrophilic nature with mean water contact angle 57.9°. The chitosan electrode exhibits 13 kW kg −1 power density from the galvanostatic charge discharge study. The chitosan electrode shows the maximum electrochemical capacitance of 36 F g −1 in non-aqueous KCl electrolyte, which presents a new anodic material for supercapacitor application.

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