An energy storage device includes an electrode assembly, a case body containing the electrode assembly, a lid structure having a lid body closing the case body, and an insulating member disposed around the electrode assembly in the case body. In this energy storage device, one of the lid structure and a side spacer includes a space along an insertion direction with respect to the case body, and the other of the lid structure and the insulating member has a fitting portion which is abutted against the one of the lid structure and the insulating member in each of the insertion direction and an opposite direction of the insertion direction in the space and fitted in the space.

An energy storage device includes an electrode assembly, a case body containing the electrode assembly, a lid structure having a lid body closing the case body, and an insulating member disposed around the electrode assembly in the case body. In this energy storage device, one of the lid structure and a side spacer includes a space along an insertion direction with respect to the case body, and the other of the lid structure and the insulating member has a fitting portion which is abutted against the one of the lid structure and the insulating member in each of the insertion direction and an opposite direction of the insertion direction in the space and fitted in the space.

An electroluminescent device including an electrode, the electrode being ionically conductive; an electroluminescence layer positioned adjacent or in contact with the electrode, the electroluminescence layer being electrically coupled to the electrode; the electroluminescence layer receiving electrical energy from the electrode and illuminating in response to received electrical energy, and wherein the electrode and the electroluminescence layer are repairable such that the function of the electrode and the electroluminescence layer is restored after a deformation.

A hair cutter with an energy storage device is provided. The energy storage device is connected to the motor through a circuit that powers the motor to oscillate a translating blade over a stationary blade. When the hair cutter is operating the energy storage device is discharged. When the energy storage device is completely discharged, the hair cutter is recharged, for example, by connecting the hair cutter to a power outlet. The electrical circuit connects the energy storage device to a voltage and/or current input to charge the energy storage device. The electrical circuit may also transform the input. For example, the circuit may transform an AC input (e.g., 120V, 12 A) to a DC input (e.g., 4.7V-5.5V, 2.5 A) when the energy storage device is a supercapacitor.

A hair cutter with an energy storage device is provided. The energy storage device is connected to the motor through a circuit that powers the motor to oscillate a translating blade over a stationary blade. When the hair cutter is operating the energy storage device is discharged. When the energy storage device is completely discharged, the hair cutter is recharged, for example, by connecting the hair cutter to a power outlet. The electrical circuit connects the energy storage device to a voltage and/or current input to charge the energy storage device. The electrical circuit may also transform the input. For example, the circuit may transform an AC input (e.g., 120V, 12 A) to a DC input (e.g., 4.7V-5.5V, 2.5 A) when the energy storage device is a supercapacitor.

A separator for an electrochemical device is provided. The separator comprises a porous substrate having a plurality of pores and a porous coating layer positioned on at least one surface of the porous substrate, the porous coating layer including a plurality of inorganic particles and a binder polymer positioned on a whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix the inorganic particles, wherein the binder polymer comprises a first binder polymer and a second binder polymer. The first binder polymer is poly(vinylidene fluoride-co-hexafluoroproyplene) (PVdF-HFP), and the second binder polymer is poly(vinylidene fluoride-co-tetrafluoroethylene) (PVdF-TFE). The first binder polymer has an electrolyte uptake of 80-165%, and the second binder polymer has an electrolyte uptake of 20-40%. An electrochemical device including the separator is also disclosed.

A separator for an electrochemical device is provided. The separator comprises a porous substrate having a plurality of pores and a porous coating layer positioned on at least one surface of the porous substrate, the porous coating layer including a plurality of inorganic particles and a binder polymer positioned on a whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix the inorganic particles, wherein the binder polymer comprises a first binder polymer and a second binder polymer. The first binder polymer is poly(vinylidene fluoride-co-hexafluoroproyplene) (PVdF-HFP), and the second binder polymer is poly(vinylidene fluoride-co-tetrafluoroethylene) (PVdF-TFE). The first binder polymer has an electrolyte uptake of 80-165%, and the second binder polymer has an electrolyte uptake of 20-40%. An electrochemical device including the separator is also disclosed.

Temperature sensors, pressure sensors, methods of making the same, and methods of detecting pressures and temperatures using the same are provided. In an embodiment, the temperature sensor includes a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor is formed of a ceramic composite that comprises carbon nanotubes or, carbon nanofibers, or a combination of carbon nanotubes and carbon nanofibers thereof dispersed in a ceramic matrix; and a thin film polymer-derived ceramic (PDC) nanocomposite disposed between the first and the second end plates, wherein the thin film PDC nanocomposite has a dielectric constant that increases monotonically with temperature.

Temperature sensors, pressure sensors, methods of making the same, and methods of detecting pressures and temperatures using the same are provided. In an embodiment, the temperature sensor includes a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor is formed of a ceramic composite that comprises carbon nanotubes or, carbon nanofibers, or a combination of carbon nanotubes and carbon nanofibers thereof dispersed in a ceramic matrix; and a thin film polymer-derived ceramic (PDC) nanocomposite disposed between the first and the second end plates, wherein the thin film PDC nanocomposite has a dielectric constant that increases monotonically with temperature.

The present invention relates to novel biocompatible oxygen gas generating devices that can be implanted into a living subject. In certain embodiments, the oxygen gas generating devices can be used to deliver oxygen gas to tissue in a subject, thereby stimulating tissue growth and repair. In other embodiments, the devices operate by electrolytically splitting endogenous water in a subject. In yet other embodiments, the device further comprises an implantable supercapacitor capable of supplying energy to the oxygen gas generating device.