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The brief review of the processes arising in Li-ion cells in the cases of abuse is presented. The results of tests on overcharge, overdischarge, short circuit inside the cell and external short circuit for Li-ion cell having capacity of 150 A·h are shown and discussed. The recommendations to minimize the aftergrowths are suggested.

A pulse method at which a tested chemical power source is discharged by a pulse generated by constant current of special shape, and voltage on a cell is measured before and after pulse action has been developed to determine the degree of dicharge of chemical power sources. The degree of dicharge of a chemical power source is determined using a specially developed algorithm from the values of these voltages and other electrical parameters calculated.

The influence of partial substitution of Zr⁴⁺ ions for Ge⁴⁺ ions at high conduction solid electrolyte Li_3.75Ge_0.75V_0.25O₄ was investigated. It was established that introduction of zirconium ions leads to noticable increasing of electrolyte conductivity and decreasing of activation energy.

Influence of concentration of antimony, tin, cadmium in lead-antimony alloys, also calcium, silver and barium in lead-calcium alloys for speed of allocation of hydrogen and oxygen was studied. It is shown, that alloying lead-antimony alloys cadmium or tin increases overpotential of allocation of hydrogen. The Introduction of cadmium in an alloy also increases overpotential of allocation of oxygen. Tin, on the contrary, causes decrease in overpotential of allocation of oxygen.

The cathodic catalyst based on pyropolymer of tetra(4-methoxyphenyl)- porphyrin cobalt (PP CoTMPP/C) on AD-100 carbon black in alkaline electrolyte was synthesized and investigated. The comparison of specific activity of the catalyst of PP CoTMPP/C in modeling conditions and in structure of gas-diffusion electrode was performed. It was shown the rate of oxygen reduction in modeling conditions is higher to some extent than one in gas-diffusion electrode.

13–14 февраля на площадке тольяттинского технопарка «Жигулевская долина» состоялась вторая Международная научно-техническая конференция «Battery Innovation 2020». Ее организаторами выступили Группа компаний «АКОМ» и научно-технический центр «Аккумулятор инноваций». Сегодня эту конференцию можно смело назвать традиционной ежегодной встречей научно-технической элиты в сфере производства и переработки химических источников тока.