Development of a Rechargeable Zinc-Air Battery

Toussaint, Gwenaëlle; Stevens, Philippe; Akrour, Laurent; Rouget, Robert; Fourgeot, F.

doi:10.1149/1.3507924

Cited by 93 publications

(64 citation statements)

References 3 publications

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“…

ZnÀair batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high-level safety, low cost, and high specific energy density. [15][16][17] In addition, the current yearly global zinc production is sufficient to produce enough Zn-air batteries, [18][19][20] which holds overwhelming advantages over the current limited production of lithium that is necessary source for the current dominant lithium ion batteries (LIBs). We demonstrate that the asdesigned ZnÀair battery, thanks to the as-formed concentration cell, can deliver a maximum power density of 380 mW cm À2 and a specific energy density of 1522 Wh kg À1 with an open-circuit voltage of 2.25 V. The as-proposed ZnÀair battery performance is superior to the conventional ZnÀair battery in terms of these pivotal performance parameters.

Energy crisis and environmental pollutions caused by the consumption of fossil fuels have stimulated great interests in developing renewable energy sources.

…”

mentioning

confidence: 99%

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

et al. 2017

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ZnÀair batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high-level safety, low cost, and high specific energy density. Here, we report an asymmetric-electrolyte ZnÀair battery with acid catholyte and alkaline anolyte separated by a bipolar membrane. We demonstrate that the asdesigned ZnÀair battery, thanks to the as-formed concentration cell, can deliver a maximum power density of 380 mW cm À2 and a specific energy density of 1522 Wh kg À1 with an open-circuit voltage of 2.25 V. The as-proposed ZnÀair battery performance is superior to the conventional ZnÀair battery in terms of these pivotal performance parameters.Energy crisis and environmental pollutions caused by the consumption of fossil fuels have stimulated great interests in developing renewable energy sources. Accordingly, a series of energy storage and conversion systems, such as rechargeable batteries, [1][2][3][4][5] fuel cells, [6][7][8][9] and capacitors, [10][11][12][13][14] have been developed successfully to fulfill application demands in diverse fields. Among them, Zn-air batteries powered by oxidizing zinc with oxygen have received intensive attentions due to their advantages of high theoretic energy density and specific capacity, low cost, and high efficiency. [15][16][17] In addition, the current yearly global zinc production is sufficient to produce enough Zn-air batteries, [18][19][20] which holds overwhelming advantages over the current limited production of lithium that is necessary source for the current dominant lithium ion batteries (LIBs). [21][22][23] Zn-air batteries are thus regarded as promising energy sources for the next generation electric vehicle battery and as a utility-scale energy storage system. [17,[24][25][26] However, the cell voltage for Zn-air batteries is theoretically capable 1.65 V and almost all practical devices are optimized for less than 1.4 or 1.3 V, less than half of that in LIBs. Moreover, the outputting energy density in the Zn-air batteries reported so far was less than theoretical estimates. For example, the peak power density and energy density are always behind 200 mW cm À2 and 1000 Wh kg À1 , respectively. In these regards, it is highly desirable to make further improvements in output voltage and energy density of Zn-air batteries. [17,[27][28][29] We here report a newly asymmetric-electrolyte Zn-air battery (AEZAB) with H 2 SO 4 as catholyte and NaOH as anolyte that are separated by a bipolar membrane (BPM), in which the commercial Pt/C is applied as the cathode catalyst to demonstrate such proof-of-concept. We demonstrate the as-designed Zn-air battery is capable of releasing an open circuit voltage of 2.25 V with a power density of 380 mW cm À2 , 1.90 times higher than that of the conventional ZAB and even beat that of the best ZAB ever reported. Moreover, the energy density of the AEZAB is as high as 1522 Wh kg À1 , 1.51 times higher than that of conventional ZAB, even far surpassing the theoretic energy density of ZAB. F...

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“…

ZnÀair batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high-level safety, low cost, and high specific energy density. [15][16][17] In addition, the current yearly global zinc production is sufficient to produce enough Zn-air batteries, [18][19][20] which holds overwhelming advantages over the current limited production of lithium that is necessary source for the current dominant lithium ion batteries (LIBs). We demonstrate that the asdesigned ZnÀair battery, thanks to the as-formed concentration cell, can deliver a maximum power density of 380 mW cm À2 and a specific energy density of 1522 Wh kg À1 with an open-circuit voltage of 2.25 V. The as-proposed ZnÀair battery performance is superior to the conventional ZnÀair battery in terms of these pivotal performance parameters.

Energy crisis and environmental pollutions caused by the consumption of fossil fuels have stimulated great interests in developing renewable energy sources.

…”

mentioning

confidence: 99%

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

et al. 2017

View full text Add to dashboard Cite

ZnÀair batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high-level safety, low cost, and high specific energy density. Here, we report an asymmetric-electrolyte ZnÀair battery with acid catholyte and alkaline anolyte separated by a bipolar membrane. We demonstrate that the asdesigned ZnÀair battery, thanks to the as-formed concentration cell, can deliver a maximum power density of 380 mW cm À2 and a specific energy density of 1522 Wh kg À1 with an open-circuit voltage of 2.25 V. The as-proposed ZnÀair battery performance is superior to the conventional ZnÀair battery in terms of these pivotal performance parameters.Energy crisis and environmental pollutions caused by the consumption of fossil fuels have stimulated great interests in developing renewable energy sources. Accordingly, a series of energy storage and conversion systems, such as rechargeable batteries, [1][2][3][4][5] fuel cells, [6][7][8][9] and capacitors, [10][11][12][13][14] have been developed successfully to fulfill application demands in diverse fields. Among them, Zn-air batteries powered by oxidizing zinc with oxygen have received intensive attentions due to their advantages of high theoretic energy density and specific capacity, low cost, and high efficiency. [15][16][17] In addition, the current yearly global zinc production is sufficient to produce enough Zn-air batteries, [18][19][20] which holds overwhelming advantages over the current limited production of lithium that is necessary source for the current dominant lithium ion batteries (LIBs). [21][22][23] Zn-air batteries are thus regarded as promising energy sources for the next generation electric vehicle battery and as a utility-scale energy storage system. [17,[24][25][26] However, the cell voltage for Zn-air batteries is theoretically capable 1.65 V and almost all practical devices are optimized for less than 1.4 or 1.3 V, less than half of that in LIBs. Moreover, the outputting energy density in the Zn-air batteries reported so far was less than theoretical estimates. For example, the peak power density and energy density are always behind 200 mW cm À2 and 1000 Wh kg À1 , respectively. In these regards, it is highly desirable to make further improvements in output voltage and energy density of Zn-air batteries. [17,[27][28][29] We here report a newly asymmetric-electrolyte Zn-air battery (AEZAB) with H 2 SO 4 as catholyte and NaOH as anolyte that are separated by a bipolar membrane (BPM), in which the commercial Pt/C is applied as the cathode catalyst to demonstrate such proof-of-concept. We demonstrate the as-designed Zn-air battery is capable of releasing an open circuit voltage of 2.25 V with a power density of 380 mW cm À2 , 1.90 times higher than that of the conventional ZAB and even beat that of the best ZAB ever reported. Moreover, the energy density of the AEZAB is as high as 1522 Wh kg À1 , 1.51 times higher than that of conventional ZAB, even far surpassing the theoretic energy density of ZAB. F...

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“…Thus, despite the CHF electrode not being modified by catalytically active heteroatoms and metal‐containing species, [EMIM] + cations will play as the promoter to initiate CO 2 reduction. Metallic zinc is selected as the anode based on the following considerations: 1) Zn enjoys proper reactivity to drive CO 2 methanation ( E o Zn2+/Zn = −0.762 vs E° CO2/CH4 = 0.17 V); 2) Zn electrode, and even Zn 2+ ions, display unique activity in the enhancement of CO 2 electrochemical reduction; 3) it is easy to revert the oxidized Zn anode to Zn 0 by an electrochemical method, thus making the Zn–CO 2 battery renewable; 4) Zn is an earth‐abundant and inexpensive metal that is capable of sustaining mass production of the battery …”

Section: Resultsmentioning

confidence: 99%

A Zn–CO₂ Flow Battery Generating Electricity and Methane

Wang

Cao

et al. 2020

Adv Funct Materials

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Metal–CO2 batteries represent an economical and efficient CO2 utilization technique, which provides a mechanism combining CO2 reduction with electricity generation instead of electricity input. Existing metal–CO2 batteries generally work in a closed system by recycling CO2. In this study, a flow battery is designed with a hollow fiber of carbon nanotubes (cathode), Zn wire (anode), and 1‐ethyl‐3‐methylimidazolium tetrafluoroborate (electrolyte). The battery can continuously consume CO2 to produce CH4 under ambient conditions and promptly output the gaseous product through the hollow fiber, with a Faradaic efficiency up to 94%. Simultaneously, the battery generates electricity, with an energy density of 288.3 Wh kg−1 (based on the zinc mass) and a stability up to 8 days. The high selectivity and efficiency of the battery is attributed to a water‐shuttling assisted proton mechanism and delicate electrode–electrolyte interplay. Moreover, the Zn anode is electrochemically renewed and the battery assembled with the regenerated Zn anode restores battery performances to the former level. The renewable characteristic implies that, if the regeneration of Zn anode is coupled to excessive renewable energy sources, then the Zn–CO2 flow battery will be promising to accomplish a net reduction of CO2 emission.

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“…These solutions may be effective for grid energy storage applications, but they add cost and complexity to the system. Furthermore, there have been several reports incorporating tri‐electrode designs, where the OER and ORR catalysts are separated to improve ZAB performance . A tri‐electrode design has its drawbacks, however, since the design is more complex and the specific energy is invariably reduced by the extra mass associated with extra OER electrodes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

Tran

Clark

Chung

et al. 2020

Batteries & Supercaps

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Zinc-air batteries (ZABs) using gel polymer electrolytes suffer from low energy efficiency and poor cyclability. This issue is not only associated with the air electrode, as early failure of the battery is often due to the Zn electrode. Here, the cycle life of ZABs using alkaline poly(acrylic acid) (PAA-KOH) as the electrolyte is shown to vary by changing its crosslinking density. For ZABs using hydrogel electrolytes, understanding the failure mechanism and optimization of the hydrogel composition are key to achieving better utilization of the Zn electrode and battery rechargeability. In addition, the effects of crosslinker concentration on rheological properties, sol-gel fraction, ionic conductivity, and water retention ability of the hydrogel are discussed. PAA-KOH gels with lower crosslinking concentrations are weaker, but they have higher conductivity and better water retention, whereas gels with higher crosslinking concentrations affect the diffusion of zincate ions and facilitate passivation of the Zn electrode, resulting in early failure of the battery.[a] T.

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Development of a Rechargeable Zinc-Air Battery

Cited by 93 publications

References 3 publications

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

A Zn–CO₂ Flow Battery Generating Electricity and Methane

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

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Development of a Rechargeable Zinc-Air Battery

Cited by 93 publications

References 3 publications

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density

A Zn–CO2 Flow Battery Generating Electricity and Methane

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

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A Zn–CO₂ Flow Battery Generating Electricity and Methane