Stationary Battery

Refs. [i] Crompton TR (2000) Battery reference book, 3rd edn. Newnes, Oxford, pp 42-44 [it] BerndtD (2003) Fundamentals and theory, running techniques, applications and outlook traction batteries, stationary batteries and charging methods. In Kiehne HA (ed) Battery technology handbook, 2nd edn. Marcel Dekker, New York, p 44... 

Lead is used in batteries, inorganic chemicals, pipes, solders, electric wires, etc., but batteries accounted for 72% of the total usage of lead in 1997. Therefore it can be said that batteries play an important role in the recycling of lead. Lead-acid batteries are classified into motor vehicle batteries (for automobiles and motorcycles), industrial batteries (stationary batteries, traction batteries, etc.), small-size sealed batteries (for UPS and consumer products). Table 2.1 shows their shipments. 

I. Fundamentals and Theory, Running Techniques, Applications, and Outlook Traction Batteries, Stationary Batteries, and Charging Methods... 

The major types of lead-acid batteries are SLI batteries, deep-cycle batteries, stationary batteries, and VRLA batteries. 

Chiral Hplc Columns. There are about 40 commercially available chiral columns which are suitable for analytical and preparative purposes (57). In spite of the large number of commercially available chiral stationary phases, it is difficult and time-consuming to obtain good chiral separation. In order to try a specific resolution meaninghilly, a battery of chiral hplc columns is necessary and this is quite expensive. 

Nickel—2iiic batteries containing a vibrating zinc anode lias been reported (83). In this system zinc oxide active material is added to the electrol 1 e as a slurry. During charge the anode substrates are vibrated and the zinc is electroplated onto the surface in a unifomi mamier. Tlie stationary positive electrodes (nickel) are encased in a thin, open plastic netting which constitutes the entire separator system. 

The case is the largest portion of the container. The case is divided into compartments which hold the cell elements. The cores normally have a mud-rest area used to collect shed soHds from the battery plates and supply support to the element. Typical materials of constmction for the battery container are polypropylene, polycarbonate, SAN, ABS, and to a much lesser extent, hard mbber. The material used in fabrication depends on the battery s appHcation. Typical material selections include a polypropylene—ethylene copolymer for SLI batteries polystyrene for stationary batteries polycarbonate for large, single ceU standby power batteries and ABS for certain sealed lead—acid batteries. 

Surface Coating of Metal Furniture Stationary Gas Turbines Lime Manufacturing Plants Lead-Acid Battery Manufacturing Plants Metallic Mineral Processing Plants Automobile and Light-Duty Truck Surface Coating Operations... 

Fuel cells have attracted considerable interest because of their potential for efficient conversion of the energy (AG) from a chemical reaction to electrical energy (AE). This efficiency is achieved by directly converting chemical energy to electricity. Conventional systems burn fuel in an engine and convert the resulting mechanical output to electrical power. Potential applications include stationary multi-megawatt power plants, battery replacements for personal electronics, and even fuel-cell-powered unmanned autonomous vehicles (UAVs). 

The demand for electrically operated tools or devices that can be handled independently of stationary power sources led to a variety of different battery systems which are chosen depending on the field of application. In the case of rare usage, e.g., for household electric torches or for long-term applications with low current consumption, such as watches or heart pacemakers, primary cells (zinc-carbon, alkaline-manganese or lithium-iodide cells) are chosen. For many applications such as starter batteries in cars, only rechargeable battery systems, e.g., lead accumulators, are reasonable with regard to costs and the environment. 

In the second half of the 1960s, at the same time but independently, three basically different plastic separators were developed. One was the polyethylene separator [16] already referred to in starter batteries, used only rarely in stationary batteries, but successful in traction batteries. The others were the microporous phenolic resin separator (DARAK) [18] and a microporous PVC separator [19], both of which became accepted as the standard separation for stationary batteries. They distinguish themselves by high porosity (about 70 percent) and thus very low electrical resistance and very low acid displacement, both important criteria for stationary batteries. 

The market for sealed stationary batteries has greatly increased since 1980, both by the growth of the PC market as well as by the decentralization of emergency power supplies and telephone ex-... 

Tabic 3. World lead-acid stationary and consumer battery production 1997 (million Wh, estimate)... 

The range of microfiber glass mat separators offered by the leading producers are presented in Sec. 9.2.3.3 with typical data in connection with their predominant application in sealed stationary batteries. 

Stationary batteries serve predominantly as an emergency power supply, i.e., they are on continuous standby in order to be discharged for brief periods and sometimes deeply, up to 100 percent of nominal capacity, in the rare case of need. The following profile of requirements for the separator thus arises very low electrical resistance, low acid displacement, no leaching of substances harmful to float-... 

The production process for polyethylene separators (Sec. 9.2.2.1) as well as the characteristic properties (see Sec. 9.2.2.1 and 9.2.3.1) have already been described in detail above. Deviating therefrom, the desire for low acid displacement has to be added for separators in open stationary batteries. This can be met either by decreasing the backweb thickness or by increasing the porosity the latter, however, is at the expense of separator stability. 

Stationary batteries, moreover, often have transparent containers historically, probably to allow observation of the electrolyte level or the extent of shedding. Deposits of oily substances accumulating at the electrolyte surface due to their stickiness could gather lead particles and produce an unpleasantly dirty rim, which can be avoided by careful selection of suitable oils [53J. 

The production process and the principal properties of this system have been described in detail in the section on traction battery separators (see Sec. 9.2.3.1). The outstanding properties, such as excellent porosity (70 percent) and resulting very low acid displacement and electrical resistance, come into full effect when applied in open stationary batteries. Due to the good inherent stiffness the backweb may even be reduced to 0.4 mm, reducing acid displacement and electrical... 

Since the early days of using PVC separators in stationary batteries, there has been a discussion about the generation of harmful substances caused by elevated temperatures or other catalytic influences, a release of chloride ions could occur which, oxidized to perchlorate ions, form soluble lead salts resulting in enhanced positive grid corrosion. Since this effect proceeds by self-acceleration, the surrounding conditions such as temperature and the proneness of alloys to corrosion as well as the quality of the PVC have to be taken carefully into account. 

Sintered PVC separators for open stationary batteries are produced in the same way as the corresponding starter battery version (Sec. 9.2.2.2). Their brittleness and thus difficult processability are disadvantages, as is their relatively low porosity the concerns about release of chloride ions and subsequent increased corrosion are to be considered here as well. On the other hand,... 

Comparative Evaluation of Separators for Open Stationary Batteries... 

Table 12 shows the physicochemical data of separators used in open stationary batteries. Since the emphasis is on low acid displacement, low electrical resistance, and high chemical stability, the phenolic resin-resorcinol separator is understandably the preferred system, even though polyethylene separators, especially at low backweb, are frequently used. For large electrode spacing and consequently high separation thickness, microporous as well as sintered... 

Table 12. Separators for flooded lead-acid stationary batteries...

K. Tatsumi, A. Mabuchi, N. lwashita, H. Sa-kaebe, H. Shioyama, H. Fujimoto, S. Higuchi, in Batteries and Fuel Cells for Stationary and Electric Vehicle Applications (Eds A. R. Landgrebe, Z. Takehara) Electrochemical Society, Pennington, NJ, 1993, PV 93-8, p. 64. 

Recently the development of Na/S batteries for car applications has been abandoned only Na/S batteries for stationary applications (load leveling) are still under development in Japan. Among the high-temperature batteries, the ZEBRA battery is the only system at present which is being commercialized for car applications. 

Mn02 in KOH 118 standard profiles, separators 262 starter battery separators 252 f, 258 f starter light ignition (SLI) batteries 2 stationary battery separators 254... 

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