A MULTILAYER PACKAGING STRUCTURE FOR A THIN FILM BATTERY AND A METHOD FOR MANUFACTURING OF SUCH A STRUCTURE
FIG1 is a cross-sectional view of a multilayer packaging structure for a thin film battery in accordance with one embodiment of the present invention
FIG1 is a cross-sectional view of a multilayer packaging structure 10 for a thin film battery in accordance with one embodiment of the present invention. The structure 10 comprises at least a first layer 11, a second layer 12 and a metal layer 14 sandwiched between the first layer 11 and the second layer 12, successively laminated on a surface of a substrate layer (not shown). A first opening 21 is arranged in the first layer 11 such that a first portion 24 of the metal layer 14 associated with the arranged first opening 21 is exposed. Here, the first portion 24 of the metal layer 14 associated with the arranged first opening 21 is configured to be able to be in electrical contact with a current collector of the thin film battery (not shown in FIG1). A second opening 22 is arranged in the second layer 12 such that a second portion 25 of the metal layer 14 associated with the arranged second opening 22 is exposed. Accordingly, the second portion 25 of the metal layer 14 associated with the arranged second opening 22 is configured to be able to be electrically connected to an external circuitry and advantageously faces external environment, once the battery is assembled. As easily seen in the embodiment of FIG1, the second opening 22 is arranged opposite with respect to the first opening 21. This arrangement with opposite opening 21, 22 is preferred but of course not limited to. The openings 21 and 22 may be offset in relation to each other. For a detailed discussion of effects, advantages and benefits attributable to the method, a reference is made to the suitable section of the description related to FIG1.
cross-sectional view
24
portion portions
12
second layer
11
first layer
22
second opening
25
portion
10
structure
['1. A multilayer packaging structure (10) for a thin film battery (5), said structure comprising at least: - a first layer (11), - a second layer (12), - a metal layer (14) sandwiched between the first layer (11) and the second layer (12), wherein said structure (10) further comprises: - a first opening (21) arranged in the first layer (11) such that a first portion (24) of the metal layer (14) associated with the arranged first opening (21) is exposed, said first portion (24) of the metal layer (14) being configured to be able to be in electrical contact with a current collector of the thin film battery (5), - a second opening (22) arranged in the second layer (12) such that a second portion (25) of the metal layer (14) associated with the arranged second opening (22) is exposed, said second portion (25) of the metal layer (14) being configured to be able to be electrically connected to an external circuitry.']