Soft package battery cell

The utility model relates to a soft package battery cell which comprises an upper coating film, a lower coating film and a multi-stage pole group, a plurality of stages of upper accommodating grooves are formed in the upper coating film; the multiple stages of upper containing grooves are sequentially formed from outside to inside, and the groove depths are gradually increased in sequence. A plurality of stages of lower accommodating grooves are formed in the lower coating film; the multiple stages of lower containing grooves are sequentially arranged from outside to inside, and the groove depths are gradually increased in sequence. The sizes of the multi-stage pole groups are sequentially decreased; wherein one stage of pole group is accommodated in an accommodating cavity formed by the upper accommodating groove and the lower accommodating groove of the corresponding stage, and the two pole groups of each stage in the rest stages are respectively accommodated in the upper accommodating groove and the lower