Cross‐Linked Polyvinyl Alcohol Films as Alkaline Battery Separators

Sheibley, D. W.; Manzo, Michelle A.; Gonzalez-Sanabria, O. D.

doi:10.1149/1.2119690

Cited by 41 publications

(19 citation statements)

References 1 publication

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since a zinc-air cell uses the migration of the hydroxyl ion, not the proton, H + , [ 148 ] separators are made of polyethylene, polyvinyl alcohol, polyolefi n, and polypropylene. [149][150][151][152][153] Porosity in the separator, however, makes it possible for the zinc cations to migrate from the anode to the cathode, which results in decreased capacity in the cell. Kiros developed a novel method to control the permeability of the zincate ion by introducing an inorganic material, Mn(OH) 2 , to the microporous membrane.…”

Section: Separatormentioning

confidence: 99%

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

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,012

1,216

View full text Add to dashboard Cite

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.

show abstract

Section: Separatormentioning

confidence: 99%

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

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,012

1,216

View full text Add to dashboard Cite

show abstract

“…This PVA membrane separator has been well established for various alkaline batteries and fuel cells [11][12][13]. The integrity of PVA material in alkaline solution and redox environment has been confirmed [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Surfactant-Assisted Perovskite Nanofillers Incorporated in Quaternized Poly (Vinyl Alcohol) Composite Membrane as an Effective Hydroxide-Conducting Electrolyte

Kumar

et al. 2017

Energies

View full text Add to dashboard Cite

Perovskite LaFeO 3 nanofillers (0.1%) are incorporated into a quaternized poly(vinyl alcohol) (QPVA) matrix for use as hydroxide-conducting membranes in direct alkaline methanol fuel cells (DAMFCs). The as-synthesized LaFeO 3 nanofillers are amorphous and functionalized with cetyltrimethylammonium bromide (CTAB) surfactant. The annealed LaFeO 3 nanofillers are crystalline without CTAB. The QPVA/CTAB-coated LaFeO 3 composite membrane shows a defect-free structure while the QPVA/annealed LaFeO 3 film has voids at the interfaces between the soft polymer and rigid nanofillers. The QPVA/CTAB-coated LaFeO 3 composite has lower methanol permeability and higher ionic conductivity than the pure QPVA and QPVA/annealed LaFeO 3 films. We suggest that the CTAB-coated LaFeO 3 provides three functions to the polymeric composite: increasing polymer free volume, ammonium group contributor, and plasticizer to enhance the interfacial compatibility. The composite containing CTAB-coated LaFeO 3 results in superior cell performance. A maximum power density of 272 mW cm −2 is achieved, which is among the highest power outputs reported for DAMFCs in the literature.

show abstract

“…10,11 Hydrogel polymers, for example, poly-vinyl alcohol (PVA), 12 cross linked potassium polyacrylate (PAAK) 13 and so on, have been reported as separator material candidates for alkaline secondary batteries with their high ionic conductivity. However, they have poor mechanical strength and it is difficult to obtain self-standing membrane composed only of hydrogel polymer with good handleability.…”

Section: Introductionmentioning

confidence: 99%

Suppression of Dendrite Formation by Using a Hydrogel Separator for Zinc Alkaline Battery

et al. 2017

View full text Add to dashboard Cite

A self-standing polyacrylate based hydrogel sheet was examined as a separator of an alkaline zinc secondary battery. It suppressed the zinc dendrite formation and resultant internal short circuit. The morphology of electrodeposited zinc under a hydrogel sheet was plate-like which was different from that of electrodeposited under a conventional nonwoven fabric separator. The nickel-zinc battery using the hydrogel sheet as a separator achieved more than 50 charge-discharge cycles.

show abstract

Cross‐Linked Polyvinyl Alcohol Films as Alkaline Battery Separators

Cited by 41 publications

References 1 publication

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

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

Surfactant-Assisted Perovskite Nanofillers Incorporated in Quaternized Poly (Vinyl Alcohol) Composite Membrane as an Effective Hydroxide-Conducting Electrolyte

Suppression of Dendrite Formation by Using a Hydrogel Separator for Zinc Alkaline Battery

Contact Info

Product

Resources

About