Battery cell and exterior packaging material
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazuhito HATTA, Mashio SHIBUYA
Life of this patent
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Abstract
A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals.
Claims31
(canceled)
A battery comprising:
- a cell;
- and
- an exterior packaging material enclosing at least a portion of the cell;
- wherein
- the exterior packaging material includes an exterior layer, a metal layer, an interior layer, a first portion, and a second portion;
- and
- when a thickness of the interior layer in the first portion is p, a thickness of the first portion is t, and a thickness of the second portion is t1, a following equation is satisfied:
- t×2−p×2+5<t1<t×2−5 (μm).
Dependencies are inferred from the claim text.