Storage Battery Plates Research Articles

The phase composition and degree of dispersion of lead powders produced by electroerosion dispersion and used in storage battery plates

The primary criterion in selection of the optimum method of forming of the plate mixture for lead-acid storage batteries is obtaining of a certain phase composition of the plates with a sufficiently uniform distribution of finely dispersed oxide phases in them. Development of new methods of production of storage battery plates satisfying the requirements of GOST`s 959-0-84 to 959.25-84 is of theoretical and practical interest since the traditional method is poor from the point of view of safety. In {open_quotes}Rotor{close_quotes} Scientific and Production Union an ecologically clean method of production of storage batteries with use of an aqueous suspension of lead powder and its oxides produced by electroerosion dispersion is being developed.In the literature there is practically no information on the aggregate condition, composition, and structure of the products of electroerosion dispersion of lead and its oxide.

The Curing of Lead Storage Battery Plates

In the lead‐acid storage battery industry, the trend has been toward the use of litharge containing high percentages of finely divided, unreacted metallic lead. Plates containing this material are cured at room temperature in the presence of water prior to forming. The setting action involves oxidation of the metallic lead, an exothermic reaction causing the plates to dry. Variations in atmospheric conditions affect the rate of setting. This paper discusses the effects of temperature and humidity changes on the setting rate. There is an optimum plate moisture concentration corresponding to a maximum oxidation rate.

The Influence of the Temperature of Formation on the Initial Capacity and the Life of Pasted S.L.I. Storage Battery Plates

The Influence of the Temperature of Formation on the Initial Capacity and the Life of Pasted S.L.I. Storage Battery Plates

The Setting and Drying of Freshly Pasted Lead Storage Battery Plates

The Setting and Drying of Freshly Pasted Lead Storage Battery Plates

Characteristics of Secondary Batteries under Reduced Atmospheric Pressure: I. Variation of Capacity of Pasted Type Storage Battery Plates under Reduced Atmospheric Pressure

Characteristics of Secondary Batteries under Reduced Atmospheric Pressure: I. Variation of Capacity of Pasted Type Storage Battery Plates under Reduced Atmospheric Pressure

Storage battery electrolytes

Experiments have been in progress at the Bureau of Standards to determine quantitatively the effect produced by a wide variety of impurities on the rate of sulphation of storage battery plates. The method for making the determinations involves measuring the changing weight of the plates suspended in the solution. The various impurities are classified according as they affect the negative plates, the positive plates or both. A discussion is given also of certain combinations of impurities. Sodium and magnesium sulphates which are sometimes added to the electrolyte to “improve” the behavior of the battery are without effect on the rate of sulphation. It is important that some generally recognized specifications for storage battery electrolytes should be established.

Storage Battery Electrolytes

Experimtents have been int progress at the Bureau of Standards to determine quantitatively the effect produced by a wide variety of impurities on the rate of sulphation of storage battery plates. The method for making the determinations involves measuring the changing weight of the plates suspended in the solution. The various impurities are classified according as they affect the negative plates, the positive plates or both. A discussion is given also of certain combinations of impurities. Sodium and magnesium sulphates which are sometimes added to the electrolyte to ``improve'' the behavior of the battery are without effect on the rate of sulphation. It is important that some generally recognized specifications for storage battery electrolytes should be established.

Effect of Certain Impurities in Storage Battery Electrolytes

A new method for measuring the rate of sulphation of storage battery plates was recently devised at the Bureau of Standards by Vinal and Ritchie (Technologic Paper 225). This consisted of periodic weighings of plates suspended in electrolyte. The present paper is an extension of this work. Detrimental impurities when present in the solution may (1) corrode the plate, (2) accelerate the formation of lead sulphate, or (3) be deposited in the pores of the plate. In any case, the weight of the plate changes and this affords the most sensitive and exact means which we have for estimating the extent and nature of the reaction. A physical meaning can be given to the rather vague term ``local action.'' It was found that electrolyte, containing only one part of platinum in ten million parts of the solution, increased the local action at the negative plates by 50 per cent. Copper, like platinum, deposits on the negative plates, but produces less effect. Iron is of unusual interest because it greatly accelerates the formation of lead sulphate at the negative plate. The reaction of the positive plates is slower, which mitigates its detrimental effects to some extent. Manganese is particularly destructive to the positive plates. The results of our experiments indicate that the reactions of manganese compounds in the battery are somewhat different from the previously accepted theories.

A new method for determining the rate of sulphation of storage battery plates

A new method for determining the rate of sulphation of storage battery plates

Cadmium Storage Battery Plates

Cadmium Storage Battery Plates