Tapioca binder for porous zinc anodes electrode in zinc–air batteries

Masri, Mohamad Najmi; Nazeri, Muhammad Firdaus Mohd; Ng, Chai Yan; Mohamad, Ahmad Azmin

doi:10.1016/j.jksues.2013.06.001

Cited by 24 publications

(29 citation statements)

References 16 publications

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“…Electrode surface area available for electrochemical reactions plays a key role in battery performance. In a NiZn battery, higher zinc electrode surface area should lead to enhanced materials utilization and higher power density and reduce passivation at high discharge rates [20]. Porous electrode structure provides higher energy density due to short ion transport length and easy charge transfer reaction on electrode-electrolyte interface [39][40][41][42].…”

Section: Charge/dischargementioning

confidence: 99%

“…These additives can reduce the concentration of the zinc oxidation products and improve electronic conductivity and current distribution [14]. Binders or gels, such as sodium silicate [19], tapioca [20], polytetrafluoroethylene [21,22], Carbopol gel [23,24], and sago which is a starch extracted from palm stems [25], were used to increase the active material utilization and effective surface area in zinc electrode. Addition of sodium silicate as binder was reported to increase battery performance [19].…”

Section: Introductionmentioning

confidence: 99%

“…Addition of sodium silicate as binder was reported to increase battery performance [19]. It was also reported that using tapioca starch as binder for porous zinc electrode enhances specific capacity [20]. A variety of organic additives are used in alkaline solutions as zinc corrosion inhibitors.…”

Section: Introductionmentioning

confidence: 99%

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Zinc Electrode Morphology Evolution in High Energy Density Nickel-Zinc Batteries

Payer

Ebil

2016

Journal of Nanomaterials

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Prismatic Nickel-Zinc (NiZn) batteries with energy densities higher than 100 Wh kg −1 were prepared using Zn electrodes with different initial morphologies. The effect of initial morphology of zinc electrode on battery capacity was investigated. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) reveal that initial morphology of zinc electrode changes drastically after a few charge/discharge cycles regardless of initial ZnO powder used. ZnO electrodes prepared using ZnO powders synthesized from ZnCl 2 and Zn(NO 3 ) 2 lead to average battery energy densities ranging between 92 Wh kg −1 and 109 Wh kg −1 while using conventional ZnO powder leads to a higher energy density, 118 Wh kg −1 . Average discharge capacities of zinc electrodes vary between 270 and 345 mA g −1 , much lower than reported values for nano ZnO powders in literature. Higher electrode surface area or higher electrode discharge capacity does not necessarily translate to higher battery energy density.

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Section: Charge/dischargementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Zinc Electrode Morphology Evolution in High Energy Density Nickel-Zinc Batteries

Payer

Ebil

2016

Journal of Nanomaterials

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“…Some of oxide additives used in zinc electrode, such as Ca(OH)2 [16,17], Bi2O3 [18], PbO [19], TiO2 [20], and In2O3 [21] are convenient to decrease the concentration of the zinc oxidation products and improve electronic conductivity and current distribution [17]. Binders or gels, such as sodium silicate [22], tapioca [23], polytetrafluoroethylene [24,25], carbopol gel [26,27], and sago [28], are ways to improve the active material utilization and effective surface area in zinc electrode.…”

Section: Introductionmentioning

confidence: 99%

“…The increase in the surface area of zinc electrode exhibits the increase in materials utilization and power density and the reduction of passivation at high discharge rates in NiZn batteries [23,32]. High surface area of zinc electrode can improve battery performance due to short ion transport length for both electron and zinc ion transport,…”

mentioning

confidence: 99%

Binder Effect on Electrochemical Performance of Zinc Electrodes For Nickel-Zinc Batteries

Cihanoğlu¹,

Ebil²

2017

Journal of the Turkish Chemical Society, Section A: Chemistry

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Polyethylene glycol (PEG) and polyvinyl alcohol (PVA) were used as a zinc electrode binder at different concentrations to enhance the electrochemical behavior of zinc electrodes for nickel-zinc (NiZn) batteries. ZnO powders synthesized by mechanochemical and hydrothermal precipitation methods were mixed with lead oxide, calcium hydroxide and binder to prepare zinc electrodes in pouch cell NiZn batteries. Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) analysis reveal that initial morphology of zinc electrode changes drastically regardless of the binder type and its loading after charge/discharge process, and even the charge/discharge process is not complete. The results show that the presence of PEG causes better discharge capacity compared to that of PVA as a binder. Zinc electrode prepared using commercial ZnO powder and 3 wt.% PEG gives the optimum discharge capability, with a specific capacity of approximately 311 mAhg -1 , while zinc electrodes prepared using ZnO powder synthesized from ZnCl2 and Zn(NO3)2.6H2O and 6 wt.% PEG exhibit high specific energy of 255 and 275 mAhg -1 , respectively. The results suggest a relationship between binder loading and battery capacity, but in-situ analysis of microstructural evolution of zinc electrode during charge/discharge process is needed to confirm this relationship.

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Rechargeable Batteries: Regulating Electronic and Ionic Transports for High Electrochemical Performance

Zhao

Hui

et al. 2021

Adv Materials Technologies

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Rechargeable batteries are serving society and are continuing to develop according to application requirements. Recently, rechargeable batteries with high energy density, power density, stability, and rate performance, as well as low cost have attracted the attention of researchers globally. However, achieving all these merits in a single rechargeable battery system is difficult. Accordingly, many approaches are reported to improve the performance of different energy storage devices. Nevertheless, reports on a general research method to improve the performance of battery systems are still limited. Herein, the current progress of rechargeable batteries and the corresponding opportunities and challenges are summarized. The principles of electrochemical reactions for lead–acid batteries, metal–ion batteries, metal–sulfur batteries, and metal–air batteries are introduced and compared. The technological challenges in the development of rechargeable batteries on the basis of transports of electrons and ions are comprehensively analyzed. In particular, approaches for regulating electronic and ionic transports are comprehensively discussed for the enhancement of electrochemical performance. Some advanced energy storage materials with good electronic and ionic conductivities are also highlighted. Furthermore, several perspectives on potential research directions for the choice and design of high‐performance rechargeable batteries for practical application are proposed.

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Tapioca binder for porous zinc anodes electrode in zinc–air batteries

Cited by 24 publications

References 16 publications

Zinc Electrode Morphology Evolution in High Energy Density Nickel-Zinc Batteries

Zinc Electrode Morphology Evolution in High Energy Density Nickel-Zinc Batteries

Binder Effect on Electrochemical Performance of Zinc Electrodes For Nickel-Zinc Batteries

Rechargeable Batteries: Regulating Electronic and Ionic Transports for High Electrochemical Performance

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