Methods of forming biocompatible rechargable energization elements for biomedical devices
First Claim
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1. A method of forming a biocompatible energization element, the method comprising:
- receiving a first substrate film of a first insulating material;
cutting a cavity in the first substrate film to form a cathode spacer layer, wherein an edge of the cavity defines a sidewall of the cavity;
receiving an anode film comprising anode chemicals;
adhering a first surface of the cathode spacer layer to a first surface of the anode film;
depositing a separator into the biocompatible energization element through the cavity in the cathode spacer layer, wherein the separator comprises a mixture of polymerizable material intermixed with droplets of non-polymerizable material;
polymerizing the polymerizable material;
immersing the substrate film with deposited separator in a solvent, wherein the solvent dissolves the droplets of non-polymerizable material and does not dissolve the polymer, wherein the dissolving of droplets of non-polymerizable material creates voids in the separator;
receiving a cathode slurry comprising cathode chemicals; and
placing the cathode slurry into the cavity in the cathode spacer layer, wherein the sidewall of the cavity in the cathode spacer layer and a surface of the deposited separator contain the cathode slurry.
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Abstract
Methods and apparatus to form biocompatible energization elements are described. In some embodiments, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a laminate stack of biocompatible material. In some embodiments, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.
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16 Claims
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1. A method of forming a biocompatible energization element, the method comprising:
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receiving a first substrate film of a first insulating material; cutting a cavity in the first substrate film to form a cathode spacer layer, wherein an edge of the cavity defines a sidewall of the cavity; receiving an anode film comprising anode chemicals; adhering a first surface of the cathode spacer layer to a first surface of the anode film; depositing a separator into the biocompatible energization element through the cavity in the cathode spacer layer, wherein the separator comprises a mixture of polymerizable material intermixed with droplets of non-polymerizable material; polymerizing the polymerizable material; immersing the substrate film with deposited separator in a solvent, wherein the solvent dissolves the droplets of non-polymerizable material and does not dissolve the polymer, wherein the dissolving of droplets of non-polymerizable material creates voids in the separator; receiving a cathode slurry comprising cathode chemicals; and placing the cathode slurry into the cavity in the cathode spacer layer, wherein the sidewall of the cavity in the cathode spacer layer and a surface of the deposited separator contain the cathode slurry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification