Silver zinc battery

Rechargeable zinc electrodes have two major problems. During charging of the battery and electrolytic zinc deposition (reaction 2.6 from right to left), zinc crys- [Pg.23]

There are two construction types of batteries (i) miniature batteries, similar to the mercury-zinc button batteries, which are now produced and used in large quantities for hearing aids and for wrist watches and (ii) comparatively large automatic activated reserve-type batteries, which are activated by a forced injection of the alkaline electrolyte into the electrode compartment and which are mainly employed for aerospace applications. [Pg.24]

The batteries with silver electrodes contain about 4 g/Ah of metallic silver 75-90% of it is in the active material of the positive electrode. Therefore, large silver-zinc batteries can be used only for special applications when other battery types are unsuitable and high costs are acceptable. [Pg.24]

Muneret X, Gobe V, Lemoine C. J Power Sources 2005 144 322. Pavlov D, Kirchev A, Monahov B. J Power Sources 2005 144 521. Plante G. Compt Rend 1859 49 402 50, 640 (1860). [Pg.24]

Causes of spontaneous combustion and other hazards of silver-zinc batteries were investigated. [Pg.8]

The first practical silver—zinc battery was developed more then 60 years ago. Since then, primary and secondary silver—zinc batteries have attracted a variety of applications due to their high specific energy, proven reliability and safety, and the highest power output per unit weight and volume of all commercially available batteries. However, they find very limited use in commercial applications, because of their high price and limited cycle life. Development of a battery separator which will improve the performance and life of zinc based alkaline cells has been... [Pg.213]

For battery separators, regenerated cellulose is placed on the surface of nonwoven so that the nonwoven is available to promote the wicking of the electrolyte. The nonwovens should not allow the penetration of viscose into itself. Suitable nonwovens are made from polypropylene, poly(vinyl alcohol), and hardwood hemps. Regenerated cellulose films are commonly used in alkaline manganese cells, both primary and secondary, in NiCd industrial batteries, as well as in silver—zinc batteries. [Pg.215]

The nickel—zinc (NiZn) system is attractive as a secondary cell because of its high energy density and low material cost and the low level of potential pollutants contained. The widespread use of nickel-zinc batteries, particularly as electric vehicle power sources, would be strongly enhanced by significantly extending the deep-discharge cycle life beyond the current level of 100—300 cycles. Considerable work has been done in the past to develop a suitable separator for nickel— and silver—zinc batteries. 272 An excellent discussion of separator development is contained in a comprehensive review. 2 ... [Pg.215]

Himy, A. Silver Zinc Battery—Phenomena Design Principles, 1st ed. Vantage Press New York, 1986. [Pg.222]

Though these alkaline silver-zinc batteries are quite expensive, they are frequently used in aerospace and military applications because they have high specific and volumetric energy density. These batteries may be kept in a dry state for several years and may be activated by introducing the electrolyte into the cells. Their status of technology and applications was presented by Karpinski et al. [346]... [Pg.750]

The study on the characterization of alkaline silver-zinc cells and composite electrodes for such cells was carried out [349, 350]. The improved silver-zinc battery with new developments in additives (Bi203) to the negative electrode and separator coatings for underwater... [Pg.750]

Zinc electrodes for secondary silver-zinc batteries are made by one of three general methods the dry-powder process, the slurry-pasted process, or the electroformed process The active material used in any of the processes for the manufacture of electrodes is a finely divided zinc oxide powder, USP grade 12. [Pg.188]

A silver-zinc battery has a high and steady current density output during operation and has been used widely. The overall reaction is... [Pg.384]

Now we want to design a silver-zinc battery with a capacity of 60 A hr. A 40% KOH solution is used as the electrolyte in the battery, i.e., water consumed during discharge is provided from the electrolyte. Calculate the minimum amount (g) of 40% KOH solution required in this battery. (Ho)... [Pg.385]

Reaction Mechanisms. There is considerable difference of opinion concerning the specific cell reactions that occur in the silver—zinc battery. Equations that are readily acceptable are... [Pg.554]

By test examinations of the membranes it was found that separation abilities in alkaline silver/zinc batteries are shown only by those in which the amount of g-PAA ranges from about 20 to 30 volume percent, The corresponding experimental data are presented in Table 1,... [Pg.258]

The silver-zinc battery is a storage battery after discharge, it can be recharged by forcing through it an electric current in the reverse direction. In this process the two electrode reactions (1.3) and (1.4) as well as the overall reaction (1.2) go from right to left. [Pg.6]

Batteries are also classified according to their chemistry (their system), that is, the chemical nature of reactants. The above-mentioned battery with silver oxide as an oxidant at the positive electrode and metallic zinc as negative electrode is called silver-zinc battery. ... [Pg.6]

The silver-zinc battery also uses a KOH alkaline electrolyte. In this battery, the cathode undergoes the displacement reaction... [Pg.65]

Himy A (1986) Silver-zinc battery phenomena and design principles. Vantage, New York, p 7... [Pg.391]

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