Apple Inc.
BATTERY CELL INSULATION AND WETTABILITY

Abstract:

Batteries according to embodiments of the present technology may include an enclosure. The batteries may include an electrode stack including a separator positioned between an anode and a cathode. The electrode stack may be characterized by a first side from which a plurality of electrode tabs extend, a second side opposite the first, a third side, and a fourth side opposite the third. The batteries may also include a wrapping seated on a first surface of the electrode stack and extending beyond an edge of each of the second, the third, and the fourth sides of the electrode stack a distance equal to or greater than a thickness of the electrode stack. The wrapping may be adhered to a second surface of the electrode stack opposite the first surface of the electrode stack on each of the second side, the third side, and the fourth side of the electrode stack.