Electrochemical cell including a folded electrode, components thereof, battery including the electrochemical cell, and method of forming same
AssigneesRobert Bosch GmbH, Sion Power Corporation
InventorsThomas Kretschmar, Ernest Dezso Botos
Life of this patent
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Abstract
An electrochemical cell including an integrated electrode structure including a separator and an electrode active material, components thereof, a battery including the electrochemical cell, and methods of forming the components, electrochemical cell, and battery are disclosed. The integrated electrode structure includes a separator and at least on electrode active material.
Claims46
An integrated electrode/separator structure layer comprising:
- a separator layer;
- one or more protective layers overlying the separator layer;
- and
- an electrode active material overlying the one or more protective layers,
- wherein the separator layer, the one or more protective layers and the electrode active material form an integrated structure.
A method of forming an integrated electrode/separator layer, the method comprising the steps of:
- providing a separator layer;
- optionally forming a gel layer on the separator layer;
- forming one or more protective layers overlying the separator layer;
- and
- depositing electrode active material over the one or more protective layers.
A method of forming an electrochemical cell, the method comprising the steps of:
- forming an integrated electrode/separator structure layer comprising the steps of:
- providing a separator layer, optionally forming a gel layer on the separator layer, forming one or more protective layers overlying the separator layer, and depositing electrode active material over the one or more protective layers;
- folding the integrated electrode/separator layer back onto itself to form a first integrated electrode/separator layer section, a second integrated electrode/separator layer section, and a first opening there between;
- and
- placing a first plate comprising second electrode material within the opening.
A method of forming an electrochemical cell, the method comprising the steps of:
- forming an integrated electrode/separator layer comprising the steps of:
- providing a separator layer, optionally forming a gel layer on the separator layer, forming one or more protective layers overlying the separator layer, and depositing electrode active material over the one or more protective layers;
- placing a first section of a second electrode layer overlying the integrated electrode/separator layer;
- folding the integrated electrode/separator layer over the first section of the second electrode layer and back over itself to form a first electrode/separator layer section and a second first electrode/separator layer section;
- and
- folding the second electrode layer over the second electrode/separator layer section to form a second electrode section overlying the second integrated electrode/separator layer section.
A first electrode/separator/second electrode structure layer comprising:
- a separator layer;
- one or more protective layers formed over a first portion of a surface of the separator layer;
- a first electrode active material overlying the one or more protective layers;
- and
- a second electrode active material formed over a second portion of the surface of the separator layer.
A method of forming an integrated first electrode/separator/second electrode structure layer, the method comprising the steps of:
- providing a separator layer;
- optionally forming a gel layer on a first portion of a surface of the separator layer;
- forming one or more protective layers over the first portion;
- depositing first electrode active material over the one or more protective layers;
- and
- depositing second electrode active material over a second portion of the surface of the separator layer.
Dependencies are inferred from the claim text.