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US 11,636,986 B2Granted
Flexible, biodegradable and biocompatible supercondenser
AssigneeBio-On S.P.A.
InventorsPaolo Saettone, Mario Cifelli, Lorenzo Migliorini, Gianluca Generali, Tommaso Santaniello, Ilaria Monaco, Paolo Milani, Mauro Comes Franchini
Life of this patent
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Abstract
A supercondenser includes at least two electrodes separated by at least one separator having a polyhydroxyalkanoate (PHA) and at least one electrolyte, and relative production process. The supercondenser is flexible, biodegradable, and biocompatible, and can be made with reduced manufacturing costs and can be integrated, for example, in electronic devices that must be used inside biological organisms.
Claims19
A process for the production of a supercondenser comprising:
- at least two electrodes separated by at least one separator comprising a polyhydroxyalkanoate (PHA) and at least one electrolyte, the process including the following steps:
- providing at least two electrodes,
- providing at least one separator comprising a polyhydroxyalkanoate (PHA) and an electrolyte, and
- placing each electrode in contact with a corresponding surface of the separator;
- wherein the step of providing at least one separator comprises combining the PHA with the electrolyte by solvent casting,
- wherein the solvent casting comprises the steps of:
- dissolving the PHA in a solvent, preferably selected from:
- HFIP, chloroform, N,N-dimethylformamide, dichloromethane, dichloroethane, aniline and acetic acid,
- adding to the solution thus obtained an electrolyte, preferably an ionic liquid, and
- pouring the solution added with electrolyte into a mould and allowing it to stand until the solvent evaporates.
7 more elements
A process for the production of a supercondenser comprising:
- at least two electrodes separated by at least one separator comprising a polyhydroxyalkanoate (PHA) and at least one electrolyte, the process the following steps:
- providing at least two electrodes,
- providing at least one separator comprising a polyhydroxyalkanoate (PHA) and an electrolyte, and
- placing each electrode in contact with a corresponding surface of the separator;
- wherein the step of providing at least one separator comprises combining the PHA with the electrolyte by electrospinning,
- wherein the electrospinning comprises the following steps:
- preparing a spinning solution by means of solubilizing the polyhydroxyalkanoate (PHA), preferably PHB, and of the at least one electrolyte, preferably an ionic liquid, in a solvent, preferably selected from:
- HFIP, chloroform, N,N-dimethylformamide, dichloromethane, dichloroethane, aniline, acetic acid,
- subjecting the spinning solution to an electrospinning process, thus obtaining PHA fibres, and
- depositing the PHA fibres on a collector, so as to obtain a separator.
7 more elements
A process for the production of a supercondenser comprising:
- at least two electrodes separated by at least one separator comprising a polyhydroxyalkanoate (PHA) and at least one electrolyte, the process including the following steps:
- providing at least two electrodes,
- providing at least one separator comprising a polyhydroxyalkanoate (PHA) and an electrolyte, and
- placing each electrode in contact with a corresponding surface of the separator;
- wherein the step of providing at least one separator comprises combining the PHA with the electrolyte by electrospraying
- wherein the electrospraying comprises the following steps:
- preparing a spraying solution by means of solubilizing the polyhydroxyalkanoate (PHA), preferably PHB, and the at least one electrolyte, preferably an ionic liquid, in a solvent, preferably selected from:
- HFIP, chloroform, dichloromethane, dichloroethane, aniline, acetic acid,
- subjecting the spraying solution to an electrospraying process, thus obtaining PHA particles, and
- depositing the PHA particles on a collector, so as to obtain a separator.
7 more elements
A process for the production of a supercondenser comprising:
- at least two electrodes separated by at least one separator comprising a polyhydroxyalkanoate (PHA) and at least one electrolyte, the process including the following steps:
- providing at least two electrodes,
- providing at least one separator comprising a polyhydroxyalkanoate (PHA) and an electrolyte, and
- placing each electrode in contact with a corresponding surface of the separator;
- wherein the step of providing at least one separator comprises the following steps:
- preparing a spinning solution comprising PHA and a solvent selected from:
- HFIP, chloroform, dichloromethane, dichloroethane, aniline, acetic acid;
- subjecting the spinning solution to an electrospinning process, thus obtaining PHA fibres;
- depositing the PHA fibres on a collector, so as to obtain a separator;
- and
- impregnating the separator with at least one electrolyte, preferably an ionic liquid.
8 more elements
Dependencies are inferred from the claim text.