FIELD: electricity.
SUBSTANCE: invention is referred to two alternatives of additive for lithium-ion rechargeable battery wherein according to one alternative electrolyte comprises at least 1 wt % of cyclic carbonate with vinyl group and from 3 up to 70 wt % of fluorinated cyclic carbonate of the total electrolyte solution mass. The invention is also related to the battery charge method.
EFFECT: suggested additive improves output of the power supply elements significantly.
56 cl, 14 ex, 1 tbl, 27 dwg
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