Discharge performance and dynamic behavior of refuellable zinc-air battery

Lao-atiman, Woranunt; Olaru, Sorin; Arpornwichanop, Amornchai; Kheawhom, Soorathep

doi:10.1038/s41597-019-0178-3

Cited by 40 publications

(32 citation statements)

References 29 publications

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“…The discharge profiles, for all cases, were found to be similar to the typical discharge profiles for ZAFBs, as previously reported [ 34 , 35 ]. Although KPS did not significantly affect the discharge potential, it was found to have a substantial impact on improving the discharge time and the capacity of the ZAFBs.…”

Section: Resultssupporting

confidence: 87%

Enhanced Cycling Performance of Rechargeable Zinc–Air Flow Batteries Using Potassium Persulfate as Electrolyte Additive

Khezri

Hosseini

Lahiri

et al. 2020

IJMS

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Zinc–air batteries (ZABs) offer high specific energy and low-cost production. However, rechargeable ZABs suffer from a limited cycle life. This paper reports that potassium persulfate (KPS) additive in an alkaline electrolyte can effectively enhance the performance and electrochemical characteristics of rechargeable zinc–air flow batteries (ZAFBs). Introducing redox additives into electrolytes is an effective approach to promote battery performance. With the addition of 450 ppm KPS, remarkable improvement in anodic currents corresponding to zinc (Zn) dissolution and limited passivation of the Zn surface is observed, thus indicating its strong effect on the redox reaction of Zn. Besides, the addition of 450 ppm KPS reduces the corrosion rate of Zn, enhances surface reactions and decreases the solution resistance. However, excess KPS (900 and 1350 ppm) has a negative effect on rechargeable ZAFBs, which leads to a shorter cycle life and poor cyclability. The rechargeable ZAFB, using 450 ppm KPS, exhibits a highly stable charge/discharge voltage for 800 cycles. Overall, KPS demonstrates great promise for the enhancement of the charge/discharge performance of rechargeable ZABs.

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Section: Resultssupporting

confidence: 87%

Enhanced Cycling Performance of Rechargeable Zinc–Air Flow Batteries Using Potassium Persulfate as Electrolyte Additive

Khezri

Hosseini

Lahiri

et al. 2020

IJMS

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“…Even though the deviation also influenced the voltage, its effect on the voltage was less than that on the battery capacity. In a previous study, the electrochemical compatibility of the materials used in the battery has already been confirmed 38 .…”

Section: Technical Validationmentioning

confidence: 76%

“…This will lead to more accurate models which are required for large-scale applications. Previously, experimental data 37 along with data description 38 of a tubular designed non-flow ZAB were published. Such data involved discharge profiles at different constant discharge currents, and dynamic behavior at different step changes of discharge current.…”

Section: Background and Summarymentioning

confidence: 99%

Discharge profile of a zinc-air flow battery at various electrolyte flow rates and discharge currents

Abbasi¹,

Hosseini²,

Somwangthanaroj³

et al. 2020

Sci Data

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Nowadays, due to global warming stemming from excessive use of fossil fuel, there is considerable interest in promoting renewable energy sources. However, because of the intermittent nature of these energy sources, efficient energy storage systems are needed. In this regard, zinc-air flow batteries (ZAFBs) are seen as having the capability to fulfill this function. In flow batteries, the electrolyte is stored in external tanks and circulated through the cell. This study provides the requisite experimental data for parameter estimation as well as model validation of ZAFBs. Each data set includes: current (mA), voltage (V), capacity (mAh), specific capacity (mAh/g), energy (Wh), specific energy (mWh/g) and discharge time (h:min:s.ms). Discharge data involved forty experiments with discharge current in the range of 100-200 mA, and electrolyte flow rates in the range of 0-140 ml/min. Such data are crucial for the modelling and theoretical/experimental analysis of ZAFBs.

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“…Zinc‐air (Zn‐air) batteries, in particular, have merits of safety, low cost as well as high theoretical energy density of 1086 Wh kg −1 , which have triggered intense and ongoing research interest . Zn‐air batteries are beginning to show promising potential and commercial value . While notable advantages of Zn‐air batteries are desirable, issues of sluggish kinetics of oxygen reduction reaction (ORR) remain.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5] Zn-air batteries are beginning to show promising potential and commercial value. [6][7][8][9] While notable advantages of Zn-air batteries are desirable, issues of sluggish kinetics of oxygen reduction reaction (ORR) remain. To date, Pt-based particles exhibit great catalytic activity, but their high cost and insufficient long-time stability make them prohibitively unattractive.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Catalytic Sites in Cobalt‐Modified Nitrogen‐Doped Carbon towards High‐Performance Oxygen Reduction Electrocatalysts for Zinc‐Air Batteries

Xue

Wei

et al. 2019

ChemElectroChem

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Efficient yet low-cost electrocatalysts for the oxygen reduction reaction (ORR) are highly desirable for energy systems such as metal-air batteries and fuel cells. Herein, we report the synthesis of efficient cobalt-modified nitrogen-doped carbon (NÀ C/Co) electrocatalysts by using a one-pot pyrolysis. The abundant source of N in g-C 3 N 4 contributes to the in situ N doping in the carbon matrix, which favors the formation of Co-related catalytic active sites. The NÀ C/Co-1 (prepared with 1 mmol Co salt) sample exhibits the best performance towards the ORR, with a positive half-wave potential of 0.86 V (vs. the reversible hydrogen electrode, RHE), high stability and excellent methanol tolerance, which outperforms the commercial Pt/C catalyst. We find that the high performance is dependent on the optimal content of Co that can achieve the maximum amount of CoÀ N x catalytic species. In addition, we reveal that the size effect of Co nanoparticles is not the determining factor for the ORR activity in the current system, as the kinetics of the ORR reaction is dominantly determined by the active sites derived from CoÀ N x species. By exploiting the NÀ C/Co-1 sample as an air cathode catalyst, the assembled Zn-air battery presents a maximal power density of 153 mW cm À 2 as well as good durability during continuous cycle tests.

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Discharge performance and dynamic behavior of refuellable zinc-air battery

Cited by 40 publications

References 29 publications

Enhanced Cycling Performance of Rechargeable Zinc–Air Flow Batteries Using Potassium Persulfate as Electrolyte Additive

Enhanced Cycling Performance of Rechargeable Zinc–Air Flow Batteries Using Potassium Persulfate as Electrolyte Additive

Discharge profile of a zinc-air flow battery at various electrolyte flow rates and discharge currents

Optimization of Catalytic Sites in Cobalt‐Modified Nitrogen‐Doped Carbon towards High‐Performance Oxygen Reduction Electrocatalysts for Zinc‐Air Batteries

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