Battery cell having notched layers
First Claim
1. A battery cell, comprising:
- an electrode having an area defined by a perimeter including an edge;
a counter electrode having an area defined by a perimeter including an edge; and
a separator having an area defined by a perimeter including an edge;
said separator sandwiched between said electrode and said counter electrode in a layered relationship with at least portions of said edges being contiguous;
said separator and one of said electrode and said counter electrode each including a first notch in said edge exposing a portion of the other of said electrode and said counter electrode.
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Abstract
The invention provides a battery cell including an electrode having an area defined by a perimeter including an edge, a counter electrode having an area defined by a perimeter including an edge, and a separator having an area defined by a perimeter including an edge. The separator is sandwiched between the electrode and the counter electrode in a layered relationship with at least portions of the edges being contiguous. The separator and one of the electrode and the counter electrode each include a first notch in the edge exposing a portion of the other of the electrode and counter electrode. The separator and the other of the electrode and the counter electrode each include a second notch in the edge exposing a portion of the one of the electrode and the counter electrode. A method of producing a battery cell having a plurality of film layers, a plurality of current collector layers, and at least one separator layer, with each current collector layer including a predetermined lead portion, is also provided. The method includes the steps of: providing at least one notch in each layer, and stacking the layers with the notches arranged with one another to expose the predetermined lead portion of each current collector layer.
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Citations
33 Claims
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1. A battery cell, comprising:
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an electrode having an area defined by a perimeter including an edge;
a counter electrode having an area defined by a perimeter including an edge; and
a separator having an area defined by a perimeter including an edge;
said separator sandwiched between said electrode and said counter electrode in a layered relationship with at least portions of said edges being contiguous;
said separator and one of said electrode and said counter electrode each including a first notch in said edge exposing a portion of the other of said electrode and said counter electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33)
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12. A battery, comprising:
a plurality of cells stacked in relation to each other, each cell including an electrode having an area defined by a perimeter including an edge,a counter electrode having an area defined by a perimeter including an edge, and a separator having an area defined by a perimeter including an edge, said separator sandwiched between said electrode and said counter electrode in a layered relationship with at least portions of said edges being contiguous, said separator and one of said electrode and said counter electrode each including a first notch in said edge exposing a portion of the other of said electrode and said counter electrode.
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29. A method of producing a battery cell having a plurality of film layers, a plurality of current collector layers, and at least one separator layer, each current collector layer including a predetermined lead portion, comprising the steps of:
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providing at least one notch in each layer; and
stacking the layers with the notches arranged with one another to expose the predetermined lead portion of each current collector layer.
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Specification