ELECTRIC METHOD OF ACCUMULATOR BATTERIES QUALITY CONTROL Russian patent published in 2008 - IPC H01M10/42 

FIELD: electricity, electric equipment.

SUBSTANCE: invention is related to electric equipment and may be used in production of accumulators and accumulator batteries, in particular, lead-acid accumulator batteries. During electric monitoring of accumulator or accumulator batteries with electrolyte quality, which is performed on completion of last technological manufacturing operation in the time limits (τ₁-τ₂), which depends on the type of items and technology of their manufacturing, with temperature of electrolyte in items within the interval (T₁-T₂), which depends on the type of items, the process of discharge lasts at least 3 sec and not more than 30 sec, the value of discharge current is maintained equal to I_n for every nominal type of item during the full process of discharge, voltage drop on the outputs U₀ is measured before the discharge start, voltage drop at outputs U₁ is measured in the moment t₁ of discharge process, voltage drop at outputs U₂ is measured in the moment t₂ of discharge process, voltage drop at outputs u_e is measured in the moment t_e in the end of discharge, value ΔU is calculated in equal to difference (U₁-U₂), values U₀, u_e, ΔU are compared with control values U_{0, control}> U_{e, control}, Δu_control for every type of items and on the basis of such comparison the decision is made on the quality of items, at that items are considered high quality if U₀ lies in the range of values U_0,control> u_e more or equal to u_e,control, ΔU less or equal to ΔU_control.

EFFECT: provides reliable monitoring of accumulator batteries quality.

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