Battery, battery outgoing line method and electronic device

The invention provides a battery. The battery comprises a battery cell body, a circuit board, a first connecting piece and colloid, the battery cell body comprises a first side provided with a tab and a second side away from the tab in the length direction, the circuit board is electrically connected to the tab, and the first connecting piece comprises a first end part, a second end part and a first bending part connecting the first end part and the second end part; and the first end part is electrically connected to the circuit board, the second end part is used for being connected with external equipment, the colloid is arranged on the first side and wraps the tab, the circuit board and the first end part, the first bending part extends along the surface of the colloid, and the second end part extends out of the colloid from the length direction or the width direction of the cell body. The invention further relates to a wire outlet method of the battery and an electronic device adopting the battery, by adop