FIELD: electrical engineering. SUBSTANCE: storage cell has case, negative plate, carbon positive plate with high specific surface area, and electrolyte solution with halide compound whose content is higher than solubility limit in electrolyte of discharged cell. Used as electrolyte is aqueous or non-aqueous solution. Active material of negative plate is lithium, lithium alloy, or lithium intercalation. EFFECT: increased discharge capacity of cell. 4 cl, 1 ex
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