Performance characterization of sintered iron electrodes in nickel/iron alkaline batteries

Periasamy, P.; Babu, B. Ramesh; Iyer, S. Venkatakrishna

doi:10.1016/s0378-7753(96)02391-9

Cited by 56 publications

(39 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6 reveals a specific charge storage capacity close to 0.347 Ah g −1 . Although, very large capacities (close to 800 mAh g −1 ) have been reported for nano-structured iron electrodes, 26,[29][30][31] our cells reaching almost 350 mAh g −1 are worth taking seriously for we have avoided the use of any ultra-pure reactants nor we have nano-structured the electrodes (these options would have a major impact on the final price of the battery). Table III lists experimental values of coulombic efficiency calculated for our electrodes in different electrolyte systems.…”

Section: Resultsmentioning

confidence: 92%

The Effect of Electrolyte Additives on the Performance of Iron Based Anodes for NiFe Cells

Posada

Hall

2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

Aqueous electrolyte formulations for NiFe cells were prepared by using lithium hydroxide and potassium sulfide additives. The incidence of each additive on the overall performance of the NiFe cell was evaluated by cycling our in-house built bismuth sulfide based iron electrodes against commercially available nickel electrodes. In order to explore the composition space relevant to our formulations, a 12 replicates 3 × 4 full factorial experimental design was proposed to efficiently investigate the combined effect of both additives. Our experimental results suggest potassium sulfide enhances the performance of the battery. The role of lithium hydroxide is less clear but the evidence supports that it would increase coulombic efficiency to a lesser degree than potassium sulfide. This article demonstrates that by using a relatively simple manufacturing technique and low cost materials, it is possible to develop cost effective solutions to store large amounts of energy coming from renewables. There is a growing demand of energy from renewable sources; [1][2][3][4][5][6] however, temporary energy profiles and the availability of sun light restrict the use of such sources. Therefore, energy storage emerges as the natural solution to the asynchronous problem between energy generation and demand. 7,8 There are many forms of energy storage (compressed air, hydroelectricity, electrochemical energy storage, etc.) with the potential to store grid amounts of energy coming from renewables. However, any practical solution must be efficient, safe, environmentally friendly and cost effective.It is well known that organic electrolyte based batteries exhibit much larger energy and power density than their conventional aqueous based counterparts. Therefore, non-aqueous batteries has become the industry standard for most mobile applications (portable computers, smart telephones, etc.). Due to the flammable nature of organic solvents, safety measurements are of overriding importance when dealing with such applications. Implementing safety measurements to protect your laptop's battery is one thing, but securing energy for a much larger application, such as an airport, is a completely different story; in this case, the implementation of safety systems would be very challenging and expensive as well. This is no longer the case with aqueous batteries, where the electrolyte itself would reduce the risk of fire. In addition, the abundance and lower cost of raw materials required to produce aqueous batteries is another important aspect to consider.Essentially, NiFe cells are secondary batteries which utilize iron based anodes, nickel based cathodes and concentrated solutions of KOH as electrolyte systems. This technology felt out of favor with the advent of cheaper lead-acid cells; however, there is a renewed interest on these batteries arising from their environmentally friendliness, longevity, and tolerance to electrical abuse (such as overcharge, over-discharge, not being used for extended periods and short-circuit conditions) and compatib...

show abstract

Section: Resultsmentioning

confidence: 92%

The Effect of Electrolyte Additives on the Performance of Iron Based Anodes for NiFe Cells

Posada

Hall

2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…In addition, a specific charge storage capacity close to 0.22 Ah g -1 was observed. Although larger capacities (close to 0.8 Ah g -1 ) have been reported by nano-structuring the electrode [11,[18][19][20], our manufacturing process is relatively simple and utilizes commercial grade reactants, which makes it ideal for largescale energy storage applications.…”

Section: Resultsmentioning

confidence: 99%

Towards the development of safe and commercially viable nickel–iron batteries: improvements to Coulombic efficiency at high iron sulphide electrode formulations

Posada

Hall

2016

J Appl Electrochem

View full text Add to dashboard Cite

NiFe batteries are emerging as an important energy storage technology but suffer from a hydrogenproducing side reaction which has safety implications and reduces coulombic efficiency. This manuscript describes a systematic improvement approach for the production of Fe/ FeS-based anodes at high concentrations of iron sulphide. Electrodes were made by mixing varying amounts of iron sulphide in such a way that its concentration ranges from between 50 and 100 % (compositions expressed on a PTFE-free basis). Electrode performance was evaluated by cycling our in-house-produced anodes against commercially available nickel electrodes. The results show that anodes produced with larger concentrations outperform their lower concentration counterparts in terms of coulombic efficiency although a slight decrease in the overall cell performance was found when using pure FeS anodes. At high FeS concentrations a hydrogen-producing side reaction has been virtually eliminated resulting in coulombic efficiencies of over 95 %. This has important implications for the safety and commercial development of NiFe batteries. Graphical AbstractKeywords FeS anode Á FeS electrode Á NiFe

show abstract

“…In contrast, alkaline rechargeable batteries satisfy safety concerns owing to their use of an aqueous electrolyte. The Ni-Fe rechargeable alkaline battery, in which iron is used as the anode and Ni(OH) 2 as the cathode material, was developed around 1900, and has a cycle life of 3000 cycles and a calendar life of about 20 years [1]. Nickel-iron batteries are highly promising for large scale battery applications owing to their high theoretical capacity [2], inexpensiveness, and absence of toxic materials [3].…”

Section: Introductionmentioning

confidence: 99%

Fabrication Fe/Fe<sub>3</sub>O<sub>4</sub>/Graphene Nanocomposite Electrode Material for Rechargeable Ni/Fe Batteries in Hybrid Electric Vehicles

Kumar

Shukla

2013

ILCPA

View full text Add to dashboard Cite

Fe/Fe 3 O 4 /Graphene composite electrode material was synthesized by a thermal reduction method and then used as anode material along with Nickel cathode in rechargeable Ni/Fe alkaline batteries in hybrid electric vehicles. Reduced graphene /Fe/Fe 3 O 4 composite electrode material was prepared using a facile three step synthesis involving synthesis of iron oxalate and subsequent reduction of exfoliated graphene oxide and iron oxalate by thermal decomposition method. The synthesis approach presents a promising route for a large-scale production of reduced graphene /Fe/Fe 3 O 4 composite as electrode material for Ni/Fe rechargeable batteries. The particle size and structure of the samples were characterized by SEM and XRD.

show abstract

Performance characterization of sintered iron electrodes in nickel/iron alkaline batteries

Cited by 56 publications

References 7 publications

The Effect of Electrolyte Additives on the Performance of Iron Based Anodes for NiFe Cells

The Effect of Electrolyte Additives on the Performance of Iron Based Anodes for NiFe Cells

Towards the development of safe and commercially viable nickel–iron batteries: improvements to Coulombic efficiency at high iron sulphide electrode formulations

Fabrication Fe/Fe<sub>3</sub>O<sub>4</sub>/Graphene Nanocomposite Electrode Material for Rechargeable Ni/Fe Batteries in Hybrid Electric Vehicles

Contact Info

Product

Resources

About