Innovative zinc-based batteries

Borchers, Niklas; Clark, Simon; Horstmann, Birger; Jayasayee, Kaushik; Juel, Mari; Stevens, Philippe

doi:10.1016/j.jpowsour.2020.229309

Cited by 94 publications

(73 citation statements)

References 216 publications

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“…Within both classifications, there have been increased efforts in recent years to study the metallic Li-liquid interface by in situ tools rather than ex situ. By in situ 7 Li nuclear magnetic resonance (NMR), the exact formation of microstructures of deposited Li has been investigated. 24,25 Similarly, it has been demonstrated by ex situ electron paramagnetic resonance (EPR) that mossy Li, dead Li or bulk metallic Li can be differentiated according to their line shape, enabling localization of lithium growth through the seperator.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…4,5 However, liquid electrolytes as used in lithium-ion batteries offer a high ionic conductivity and can stay in contact with the moving surface of a metal, 6 as demonstrated, for example, in commercial zinc metal batteries. 7 Moreover, liquid electrolytes for lithium-ion batteries have been studied for decades and have better compatibility with the current manufacturing process than solid-state electrolytes. Therefore, only electrodes and electrode-electrolyte interphases in liquid electrolytes will be discussed in this perspective.…”

Section: Introductionmentioning

confidence: 99%

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Strategies towards enabling lithium metal in batteries: interphases and electrodes

Horstmann

Shi

Amine

et al. 2021

Energy Environ. Sci.

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Section: Characterization Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategies towards enabling lithium metal in batteries: interphases and electrodes

Horstmann

Shi

Amine

et al. 2021

Energy Environ. Sci.

Self Cite

200

189

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show abstract

“…The electrochemical performance of the prepared electrodes, in both half-cell and full-cell configurations, was compared with electrodes fabricated with Pt-RuO 2 benchmark catalysts (referred to as PtÀ Ru in this work). [26] The latter electrodes were spray coated on commercial GDL (Fuel Cell Store: Toray Paper 060-TGP-H-060) with a mass loading of ~0.5 mg cm À 2 . The spray coating suspension was prepared by mixing 50 mg of Pt-RuO 2 powder (nominally 30 wt % Pt and 15 wt % RuO 2 combined with carbon black, purchased from Alfa Aesar), 1 mL of ethanol, 0.1 mL Nafion 5 % and 2 mL of deionized water (DIW).…”

Section: Electrode Preparationmentioning

confidence: 99%

Spinel Type Mn−Co Oxide Coated Carbon Fibers as Efficient Bifunctional Electrocatalysts for Zinc‐Air Batteries

Ivey

Abedi

Leistenschneider

et al. 2021

Batteries & Supercaps

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MnÀ Co mixed oxide nanoparticles were coated onto carbon fibers (CFs) derived from asphaltene through a facile coating process. Homemade gas diffusion layers (GDLs) were prepared with the coated CFs to be employed as air electrodes and bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) electrocatalysts for Zn-air batteries (ZAB). The MnÀ Co oxide was identified as a cubic spinel phase (MnCo 2 O 4 ) by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The composite air electrode showed excellent catalytic activity towards ORR/OER, outperforming the benchmark Pt-RuO 2 catalyst in both half-cell and full-cell configurations with discharge/charge efficiencies of 63.7 % and 60.0 % at 10 and 20 mA cm À 2 , respectively. After 200 cycles (100 h) at 10 mA cm À 2 the final efficiency of the composite electrode (58.9 %) was still superior to that of PtÀ Ru (43.2 %).

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“…For simplicity, the Zn 5 OH ð Þ 8 Cl 2 � H 2 O reaction product will be referred hereafter as Simonkolleite, which is a white and low water soluble powder. Upon saturation, the continuously produced Zn(OH) 2 from Equation (3) can further react depending on the local pH and Cl À concentration as follows [Eqs (5)- (7)]:…”

Section: Galvanostatic Discharge/half-cell Strippingmentioning

confidence: 99%

Improved Electrochemical Performance of Zinc Anodes by EDTA in Near‐Neutral Zinc−Air Batteries

Guerrero

Durmus

Dzięcioł

et al. 2021

Batteries & Supercaps

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The influence of ethylenediaminetetraacetic acid (EDTA) electrolyte additive on the performance of ZnÀ air batteries with nearneutral chloride-based electrolytes was examined for primary and secondary batteries. The electrochemical measurements indicated that Zn is not completely active in neat 2 M NaCl, but still could be discharged up to 1 mA cm À 2 around À 1.0 V Ag/AgCl . The characterization of the Zn surfaces revealed the existence of a passive film consisting of Simonkolleite, Zn(OH) 2 , and/or ZnO. The EDTA additive enhanced the discharge voltages by 200 mV to À 1.2 V Ag/AgCl indicating an active Zn surface. The effect of EDTA is explained by its chelation abilities with Zn 2 + before formation of hydroxide or oxide species. The ZnÀ air cells with EDTA were operated up to 930 h with specific energies up to 840 Wh kg Zn À 1 . The cells could also be cycled up to 70 cycles while providing enhanced discharge voltages at 1.15 V over 50 cycles. The positive effect of EDTA is dependent on the amount of free EDTA molecules. Nevertheless, the ZnÀ air cells showed better performance in terms of higher discharge voltage, discharge energies, and lower overpotentials in presence of EDTA.

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Innovative zinc-based batteries

Cited by 94 publications

References 216 publications

Strategies towards enabling lithium metal in batteries: interphases and electrodes

Strategies towards enabling lithium metal in batteries: interphases and electrodes

Spinel Type Mn−Co Oxide Coated Carbon Fibers as Efficient Bifunctional Electrocatalysts for Zinc‐Air Batteries

Improved Electrochemical Performance of Zinc Anodes by EDTA in Near‐Neutral Zinc−Air Batteries

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