UA58170C2 - Battery of cylindrical lead-acid accumulators - Google Patents

Abstract

The proposed battery of cylindrical lead-acid accumulators contains a casing with cells. In the cells, accumulators with spiral electrodes are installed. The electrodes are isolated by tape separators and connected by jumpers. The accumulators are combined into units, each of which contains three accumulators. The terminals of adjacent accumulators in the unit are connected by cast inserts.

Description

tori with flat plate electrodes. there are conditions for uneven current distribution

The main disadvantage of this AB is the low energy consumption of the plate area, which leads to an increase in the locality and a small ratio of the instantaneous knowing discharge in the upper part of the roll. Such a reduction of the discharge current to the nominal capacity of the current collection mode gives a loss of power and (with a starter current of 400 A and a nominal capacity - a reduction in the service life of the battery. And, finally, for a system with a capacity of 85A"h, it is equal to 4.7). For modern machines, inter-element switching , made of leading batteries that have motors with a high torque of jumpers and current bridges, increases the size of the start-up batteries, which can complicate their installation

A well-known lead battery of a roll structure is shifted to the dimensions of the machines that are serviced, and according to (US patent Me5922490, IPK NOTM2/00). also leads to a decrease in specific (by volume)

The patented design of the AB consists of svim) energy-intensive AB. cell batteries of the roll type. They are placed in the body, which has a certain amount of vertization of the current distribution over the area of electrodes and converging cylindrical cells. The cells are inserted to improve the utilization ratio of the active mass, batteries assembled from the positive and negative acceleration of the gas recombination process, enlarged electrodes, separated by a separator and rolled up according to the compactness of the switching system, as well as enlarged spirals with the formation of a cylinder. Depending on specific energy capacity (and vibrotechnical requirements, batteries can have shock resistance. different capacities. To fix rolls of different diameters. The task is solved by the fact that in the same cells, volumetric inserts are provided in the lead battery of cylindrical batteries, which increase stiffness of the assembly. contains a case with cells in which the battery is placed

The disadvantages of the described AB are irrational generators with spirally wound electrodes, the use of the volume of the body cells, which expresses the complexity of the system. current collection and commutation. tation, according to the invention, batteries are connected in

A cylindrical battery is also known for its triple non-separable blocks and laid horizontally (by the US patent Me5637416, IPC? NOTM6/10.1 He but, the contact lugs of different polarities in each battery formed by the spiral winding of the "sandwich" block are led to the opposite ends of the two tape electrodes of the opposite polar-electrode rolls, and the groups of lugs from the adjacent carriers, separated by a separator. One of the battery electrodes in the block is connected to each other by a contact- has a two-layer structure with different porosity and washers formed by the metallurgical thickness of the layers. The active material is filled by using a detachable pouring from the comb pores of a layer with a higher porosity.

The disadvantages of the described design include the fact that the horizontal position of the roll creates an excessive thickness of one of the electrodes, which leads to favorable conditions for the recombination of gases (oxygen and reducing the number of layers in the roll filled with hydrogen). This is due to the fact that in this compound the dimensions of the housing cell are fixed, and as a result, the Archimedean force acting on the bubble does not allow a high ratio to be obtained, in most cases the application of the instantaneous value of the discharge current is directed to across the separator gap coincides with the nominal capacity. straight line with the oxygen concentration gradient,

The closest technical solution, because the top of the positive electrode is always early as a prototype, is a lead battery with a cylinder - the adjacent negative electrode is located (according to river batteries, developed by the company Or- with the exception of small side sections of the roll, where the pot- and Vaiepiez Ope. ( USA). Glass-

Batsegu zayeii, Adygariayu. / Mygtau S. // Oev. Memuv - fibrous separator with bound electroly- 1991. - 47, Me21. - R. 109 - 1104). The electrodes of the accumulator have a structure that creates a strong lators are cylinders rolled up with direct anisotropy. resistance to the movement of gas bubbles. Transverse composite blanks. They have a lateral resistance many times less than the longitudinal one. Attached vertically to the cylindrical cells of the battery case. the native movement of gas bubbles in the weight field directs them

Each blank consists of positive and negative electrode plates, with the horizontal orientation of the roll not along the electrode plates, between which the plates are laid, but between them. And although the resulting forces, which the fibrous separator tape, impregnated elect- guide the bubbles have a slightly different direction roller. The lugs of both polarities are located at different points of the roll, they have in common that the upper end of the cylinder and are connected by pole places - they all act along a path with reduced travel resistance. gas in the pores of the separator. In addition, the thickness is small

The shortcomings of the prototype include the fact that the separator facilitates the contact of oxygen with the negative gas bubbles, they are moved only by a different kind of electrode, since the bubble can be easily removed by fluctuating forces, and the Archimedean force, which exceeds the thickness of the separator strip, directs them only along the plates, why, without jumping out of the roll, with such a degree of probability, they can get stuck in the separator, finding an obstacle that over-evaporates. The unreacted oxygen from the bottom does not provide the driving force. Therefore, a possible incomplete recombination of the parts of the roll can, during vibrations, displace the gas fraction into water, which is dangerous for sia, but only in the upper part of the roll, where the recombination of the hermetic battery. In addition, due to the asymmetric bin, pressed by the total force to the negative (one-sided) output of the contact lugs, the electrode will be created. In any case, the exit of gas bubbles outside the roll is impossible. The drop in concen- reduction of the nominal capacity, the connection of such a tration of dissolved gas across the gap forces the molecules of batteries requires a rather cumbersome oxygen system to diffuse to the side of the negative electrode of the commutation, which contains current bridges, switch. that etc. In addition, the roll method of production

Thus, both oxygen molecules and their bubbles are easily moved in the required volume of the body due to the irrational use of working yoke clusters. Incorporating a system of cylindrical direction, increasing the speed and completeness of re-accumulators in a rectangular case leads to a reduction of the combination, for the reason that the forces acting on them, the total active mass contained in these gaba- keep them within the roll, where they inevitably dig. But recombination directly depends on the amount of the latter. In this case, the cyclic forces are the electrical capacity of AB. In order to increase the compact vibrations that accompany the operation of batteries in vehicles, the invention proposes to mount 6 components of vehicles, promoting triple inseparable blocks consisting of nine gas bubbles in the direction of one of the three electric 2- x volt batteries. | already from such virgins, and not before leaving the roll, which also accelerates the triple blocks to complete the necessary recombination of batteries. Improvement of gas nominal voltage recombination conditions. Therefore, the block of minimum new fractions makes it possible to increase the guarantee of minal in AB, which is declared, consists of three safe operation of batteries, especially in her- 2-volt batteries. metic modifications. As already noted, in each battery pa-

The horizontal placement of the batteries gives the tented AB ears of opposite polarities another useful advantage compared to the vertical - they are brought out on different ends. Therefore, the rolls are powered sequentially by the synchronously arranged AB to obtain a 6-volt pot-unloading of the lugs. Now they do not hold the swarm blocks, it is made by the metallurgical method - the roll, which is bandaged with the side surface of the corgo connection of all the lugs by forming a pus and rests with all its weight on the bottom of the battery adapter (washer), which serves as a common electrical compartment. Removal of mechanical "loads with three-point contact for both groups of lugs. Washers, lugs increases their vibration-impact strength. The vibration strength of the electrodes formed in the gaps between the ends of adjacent ones is also accumulated, since the lators in the block serve simultaneously and the mechanical fall of the active layer is prevented by not only by a support that connects three accumulators into one pot- the compressive stress that arose when winding the tubular non-separable block. A similar type of docking of the womb, as well as a change in the orientation of the electrodes relative to has the maximum in this compact composition- the force of weight, which acting now not lengthwise, but crosswise. With the limitation of the volume released for the tive layer. AB in serviced machines, compactness

An important advantage of the horizontal service elements of the device is the end localization of the latter, which makes it possible to place batteries with a separate output and increase the amount of active material by means of pole contacts. some increase in the size of the electrodes, which

In high-capacity batteries designed for higher specific energy capacity AB. heavy modes of operation, the contacts are brought out on the tor- According to the authors' available information, the proposed plane under bolt fastening. new essential differences that characterize the essence

Differentiation of the contact conclusions on opposites of the invention, not known in this section of the technique. the ends of the rolls leads to the equalization of the longitudinal The proposed technical solution can be the resistance of the electrodes and, as a result, to an even- used in battery production enterprises current distribution and to an increase in the coefficient of mulating batteries, in particular - lead- the use of active mass (by 10 - 1595 in pore-acidic types. This may be of particular importance for nannies with analogues). In that case, if the contacts in the case of production of batteries with a large of both polarities come to one end with a pilot-discharge current for heavy operating modes, well, the selection of current is much more intense from the top (for starting engines and powering the electrical equipment- part, and local currents overloading of special machines belonging to groups of the same sections, especially for starters 1.10 - 1.11 of category A GOST B 20.39.304). regimes cause rapid degradation of electro- On Fig. 1, 2, C shows the schematic diagram of pods, i.e. AB aging. While the averaging of the continuous inseparable block of cylindrical accumulators is the intensity of potential formation reactions along the tori. of the electrode area, contributes to the increase in the number of Accumulators 1, obtained by rolling the working cycles of AB. Thus, the organization of the current "sandwich" of two tapes, containing a spiral elem selection from the opposite ends gives a significant correctorde 2 of positive polarity and a similar electrical effect. trod With negative polarity, which along its entire length

One lead-acid battery is capable of creating a maximum EMF equal to 1.92 - 2.158, laid out on both sides with a strip matrix, separator 4. When winding the negative electrode, that is, on average - 2.08. The most spread- is placed on top of the positive, which is required for gen voltage of the machines being serviced, dor- creation of the best conditions for the recombination of gases. 6, 12, or 24 V. When connected in series. the required sources of the lyator are made up of multiplicity. The cut-out of current outlets is made of over-powering. But with the technical requirement of minimization of the lugs with a small step. The step is selected in such a way that with AB barytes, and this is especially relevant for accumulators, the lugs form a straight row along the roll-type tors, in which the discharge diameter of the roll increases, and the rows of lugs of the opposite current achieve due to their noticeable polarities in planes are perpendicular to each other. Heating three such cylindrical accumulators, he connects all the lugs, which have already been flux-connected into one triple non-separable block, at the stage of manufacturing current collectors, as in the case of contact washers 7. The same washers in the mechanical , as well as in the electrical relation, dig the end unipolar terminals, which are cut into creating a contact fastener - a contact washer 7. contact fittings 8. All three accumulators are pressed into the common tubular body 9 with polymer due to adhesion forces. , and metallurgical, due to the material. alloys The same operation is performed with the second joint and

Docking of batteries is carried out in such a way with extreme groups of lugs (unipolar zones). Pi- method. Three accumulators 1 are fixed in the equipment, after this, the mold is removed, and the resulting spent (not shown) vertically with the possibility of independent non-detachable block is subjected to an electrochemical vertical shift and positioned, orienting processing (electrolyte impregnation and forming) rows of lugs, 5 and 6 that slide oppositely and are placed in a polypropylene tube. After crimping in a cross-shaped manner, as well as observing the connection for the purpose of sealing and cutting the contact polarities, because the batteries are connected at the fittings 8, the battery is ready for use. serial chain for the purpose of summing up their

emf The gaps formed between the batteries are reduced by a factor of 68. of any voltage until their size becomes smaller. With such a shift, structurally significantly more compact than a similar counter series will form an event, the size of which is uncri- battery, with standard commutation. Since it is common, but in practice it reaches a third of the highest effect, the formed batteries are used in a horizontal position, so AB from them is used to form a contact washer 7. are collected, placing them in a designated volume in

Washers in the gaps between the accumulators positioned horizontally, connecting the frames 1 are formed by a metallurgical method. Suitable contact fittings for pole bridges. In this arrangement of inter-element connections, a sign 10 with a comb joint 11 is installed in the entrance area. The depth of the wine is less than in the prototype. And their geometric shower head with a slight excess is equal to the structure creates additional conveniences during the installation of the west zone. It consists of two harvesting and repair works. halves and has comb-shaped cuts at the junction, the size and frequency of the described changes in the design of the batteries correspond to the dimensions of the internal type, as well as in their arrangement in the battery with a row of lugs, which it clamps during installation. make it possible to increase the ratio

The clearance between the lugs and the slots of the mold does not transfer the discharge current to the nominal capacity up to 6 exceeds 0.1 mm and the liquid lead does not flow, and more due to the optimization of the current distribution due to the forces of surface tension. Halves on the area of the electrodes, to increase the safety of work, are placed on a row of lugs of one polarity so that, due to the acceleration of the process, a row of the other polarity rests on its bottom. Then, in the recombination of gases in the interelectrode space, lead (or its alloy) is poured into the mold. also to increase the specific energy intensity of AB by

The liquid metal, filling the mold to increase the utilization factor of the active level, fills those end parts of the electrodes mass of the electrodes and increasing the compactness of the system on both sides, which protrude into the entry zone. For switching. 9 5 5 to ort Uri ptn tt rent I and BABY --E BO

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Ministry of Education and Science of Ukraine

State Department of Intellectual Property, str. Urytskogo, 45, Kyiv, MSP, 03680, Ukraine

SE "Ukrainian Institute of Industrial Property", str. Glazunova, 1, Kyiv - 42, 01601