Zinc-air cell with neutral electrolyte

Jindra, J.; Mrha, J.; Musilová, M.

doi:10.1007/bf00613036

Cited by 39 publications

(28 citation statements)

References 7 publications

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“…The alkaline electrolytes used in zinc-air batteries are potassium hydroxide, sodium hydroxide, and lithium hydroxide, [ 2 ] all basic except for neutral NH 4 Cl [ 156 ] . Among these, KOH has been widely used in zinc-air cells because of its superior ionic conductivity of K + (73.50 Ω − 1 cm 2 /equiv) compared to Na + (50.11 Ω − 1 cm 2 /equiv) [ 148 ] In addition, ∼ 30% KOH is usually used because it shows maximum ionic conductivity at this concentration.…”

Section: Electrolytementioning

confidence: 99%

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,054

1,216

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In the past decade, there have been exciting developments in the fi eld of lithium ion batteries as energy storage devices, resulting in the application of lithium ion batteries in areas ranging from small portable electric devices to large power systems such as hybrid electric vehicles. However, the maximum energy density of current lithium ion batteries having topatactic chemistry is not suffi cient to meet the demands of new markets in such areas as electric vehicles. Therefore, new electrochemical systems with higher energy densities are being sought, and metal-air batteries with conversion chemistry are considered a promising candidate. More recently, promising electrochemical performance has driven much research interest in Li-air and Zn-air batteries. This review provides an overview of the fundamentals and recent progress in the area of Li-air and Zn-air batteries, with the aim of providing a better understanding of the new electrochemical systems.

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Section: Electrolytementioning

confidence: 99%

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,054

1,216

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“…Eventually, it causes cathode damage with subsequent deterioration of performance. In this context, KOH is preferred over NaOH because its reaction products with atmospheric CO 2 (K 2 CO 3 or KHCO 3 ) are more soluble than the sodium counterparts (Na 2 CO 3 or NaHCO 3 ), and therefore minimize the blocking of the porous air electrode structure because of the precipitation of these insoluble carbonates .…”

Section: Precipitation Of Insoluble Carbonatesmentioning

confidence: 99%

Alkaline aqueous electrolytes for secondary zinc-air batteries: an overview

Mainar

Leonet

Bengoechea

et al. 2016

Int. J. Energy Res.

263

192

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Summary New applications and emerging markets in electromobility and large‐scale stationary energy storage require the development of new electrochemical systems with higher energy density than current batteries. Rechargeable metal–air batteries, mainly lithium–air and zinc–air systems, are considered one of the most promising candidates. In contrast to lithium, zinc is abundant, inexpensive and its electrodeposition in aqueous electrolytes is relatively easy. Unfortunately, achieving a rechargeable zinc–air battery is still hindered by various technical problems related to the reversibility and lifetime of the electrodes. The most widely used electrolyte in zinc–air batteries has been the classical aqueous alkaline. In this context and with the main objective of providing a complete overview, we studied a wide number of articles starting from the beginning of the development of secondary zinc–air batteries (1970–1980s) to more recent works, with the aim of compiling all available information. It is essential to revise older papers to find relevant information that may get otherwise forgotten and not taken into account to develop new solutions. This information could also be applied in other storage systems based on zinc as nickel–zinc, zinc hybrid or zinc‐ion. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Thus water adsorptiondesorption characteristics of MCM-41 material induces the variation in the OCV of Zn/MCM-41/air cell. This is further supported by the fact that oxygen reduction activity can be observed even in quasi-neutral electrolytes [26][27][28]. The more the moisture content absorbed, the higher the cell OCV due to the increase in water activity.…”

Section: Resultsmentioning

confidence: 72%