Motive batteries

To reduce or eliminate the scattering of cadmium in the environment, the disposal of nickel —cadmium batteries is under study. Already a large share of industrial batteries are being reclaimed for the value of their materials. Voluntary battery collection and reclaiming efforts are under way in both Europe and Japan. However the collection of small batteries is not without difficulties. Consideration is being given to deposit approaches to motivate battery returns for collection and reclamation. 

In Figure 1, the cutaway view of the automotive battery shows the components used in its constmction. An industrial motive power battery, shown in Figure 2 (2), is the type used for lift tmcks, trains, and mine haulage. Both types of batteries have the standard free electrolyte systems and operate only in the vertical position. Although a tubular positive lead—acid battery is shown for industrial appHcations, the dat plate battery constmction (Fig. 1) is also used in a comparable size. 

As this volume attests, a wide range of chemistry occurs at interfacial boundaries. Examples range from biological and medicinal interfacial problems, such as the chemistry of anesthesia, to solar energy conversion and electrode processes in batteries, to industrial-scale separations of metal ores across interfaces, to investigations into self-assembled monolayers and Langmuir-Blodgett films for nanoelectronics and nonlinear optical materials. These problems are based not only on structure and composition of the interface but also on kinetic processes that occur at interfaces. As such, there is considerable motivation to explore chemical dynamics at interfaces. 

The domestic use pattern for lead in 1990 was as follows lead-acid storage batteries, used for motor vehicles, motive power, and emergency back-up power, accounted for 80% of total lead consumption ammunition, bearing metals, brass and bronze, cable covering, extruded products, sheet lead, and solder, represented 12.4% the remaining 7.6% was used for ceramics, type metal, ballast or weights, tubes or containers, oxides, and gasoline additives (USDOC 1992). 

Phase behavior 1n concentrated aqueous electrolyte systems is of interest for a variety of applications such as separation processes for complex salts, hydrometal 1urgical extraction of metals, interpretation of geological data and development of high energy density batteries. Our interest in developing simple thermodynamic correlations for concentrated salt systems was motivated by the need to interpret the complex solid-liquid equilibria which occur in the extraction of sodium nitrate from complex salt mixtures which occur in Northern Chile (Chilean saltpeter). However, we believe the thermodynamic approach can also be applied to other areas of technological interest. 

Lead-acid batteries can be classified into three major types or categories, namely, automotive (SLI), stationary, and motive power (industrial). In addition, there are many special batteries that cannot be easily categorized as either of the above types. As these types of batteries are constructed with different materials and design to meet the requirements of their intended end uses, each requires a particular separator with specific material composition, mechanical design, and physical, chemical, and electrochemical properties that are tailored for the battery and its relevant specific uses. These batteries are generally available in flooded electrolyte or valve regulated (sealed) versions. In this section the types... 

One of the lessons learned in the 1990s was that the enormous need for high-performance portable power is not diminishing. Consumer electronics continues to be a vibrant, worldwide market force, leading to ever-increasing demands for portable power. The inability of lithium ion batteries to fully satisfy consumer electronics has been one of the principal motivations for the dramatic rise in fuelcell research and development. As the dimensions of devices continue to shrink, the question arises as to... 

Motive power batteries are generally of higher quality than SLI batteries. Their most important characteristics are constant output voltage, high volumetric capacity at relatively low unit cost, good resistance to vibration and a long service life. Since electric motors used for motive power require... 

Fig. 5.13 Motive power lead-acid cell with tubular positive plates in which the active material is contained in pre-formed terylene tubes, and negative pasted grid plates surrounded by microporous polyvinyl chloride separator envelopes. The case and lid are formed of heat-sealed polypropylene. (By courtesy of Chloride Industrial Batteries.)...

Iron-nickel oxide batteries have been used for many years in railway lighting applications, and for motive power in industrial trucks, tractors and mine locomotives. There is some utilization of the system in emergency lighting and alarm circuits. 

In applications such as load levelling, motive power or in consumer electronics, the battery is required to undergo a sequence of deep discharges followed by a recharge to maximum capacity. A number of methods may be used. 

I11 Figure 1, the cutaway view of the automotive battery shows die components used in its construction. Automotive and industrial motive power batteries have the standard free electrolyte systems and operate only in die vertical position. 

In the series hybrid vehicle a ZEBRA battery would complement the internal combustion engine. This combination could offer pollution-free motoring within cities, with the more powerful but dirty petrol/diesel motive power used for longer journeys. In the 100 kW h to 10 MW h energy range the batteries would be suited to load-levelling. The ZEBRA battery is now being mass-produced (MES-DEA, Stabio, Italy). 

The motivation for developing polymeric electrolyte systems for lithium batteries arises from the following reasons ... 

One final common inclusion in many studies of occupational behavioral toxicology and in some test batteries is assessments of symptoms experienced by those exposed to chemicals. While this might be perceived as an ostensibly simple procedure, it entails numerous potential confounds. These evaluations are typically administered via questionnaires. Items for the questionnaire must be carefully constructed with respect to not only the choices of items but also the wording of the text and the manner in which the response is recorded. Clearly, the motivation of the subject in answering the questions must be considered. One problem can arise when the list of symptoms includes only those that are associated with the toxicant of concern. It is necessary to include symptoms that are not associated with the particular toxicant under evaluation so that some assessment of the tendency of the subject to respond positively to all symptoms can be evaluated. Several such evaluations of subjective and mood states are available. The most widely used is the Profile of Mood States (POMS), which consists of 65 adjectives of various moods that the subject answers according to a 5-point rating scale. The POMS has been used extensively in the evaluation of the acute effects of CNS drugs and toxicants. 

A lead-acid battery pack is used as electrical energy storage system, constituted by 4 units, each one of 12 V and 38 Ah. The choice of using lead-acid batteries is essentially motivated by its low cost and good efficiency [2]. The technical specifications of the battery pack are reported in Table 6.4. 

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