герметизированный свинцово-кислотный аккумулятор

The paper considers the most significant properties of moulding solutions based on a mixture of polyvinylidene fluoride and polystyrene for the process of capillary-free electrospinning nonwoven materials. It has been shown that the material obtained from the mixed solution of polyvinylidene fluoride and polystyrene in the ratio of components 0.75 : 0.25 is the largest porous, the diameter of the fibers is in the widest range from 0.14 to 2.8 μm, and branching of the fibers is observed.

The efficiency of oxygen ionization in a lead-acid mock-up was studied using a separator based on an absorptive glass mat (AGM) and polymer non-woven fibrous materials based on F-2M polyvinylidene fluoride and polystyrene. Fibrous material obtained by capillary-free electrospinning. The technological and structural characteristics of the polymer material are investigated. It was found that the use of a sandwich polymer/AGM/polymer separator significantly increases the efficiency of oxygen ionization.

УДК 541.135

DOI:  https://doi.org/10.18500/1608-4039-2016-16-1-17-23

УДК 541.135

DOI:  https://doi.org/10.18500/1608-4039-2016-16-1-10-16

In article, based on the made researches on optimization of design data of valve-regulated lead/acid battery, the (technique) method of their calculation for standby application is given.

The process of formation of a passivating sulphatic film on electrodes made of lead-tin alloys was studied by voltammetry. This process was established to proceed under diffusive control and to be limited to mass transfer in the anode film. At anodic dissolution of lead-tin alloys, there proceeds active dissolution of tin which collects inside the anode film and passes to solution. Owing to the formation of a more porous sulphatic film on the surface of a tin-containing alloy, the constant of diffusive process increases.

Some useful characteristics of the separators from glass-absorptive matrices produced by several manufacturers and intended for valve-regulated lead-acid batteries were studied, namely, compressibility, electrolyte capacity, capillary rise speed, oxygen absorption rate on the lead electrode, and hydrogen absorption rate on the lead-dioxide one. The usage of these separators provides forced pumping of the gases released (oxygen and hydrogen) to the absorptive electrode's pores and allows the oxygen and hydrogen ionization rates to be raised.