Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

A wireless power transfer pad for wireless charging of a vehicle electrical storage system. The wireless power transfer pad includes an oscillating electromagnetic field generating device configured for transmitting energy to a wireless power receiver associated with the vehicle. The pad further includes a foreign object detection arrangement including a plurality of foreign object detection coils. The solar panel arrangement includes a photovoltaic substrate with a front side and a rear side, a front side electrode arrangement and a rear side electrode arrangement. The foreign object detection coils are configured to function also as the front side electrode arrangement.

A wireless power transfer pad for wireless charging of a vehicle electrical storage system. The wireless power transfer pad includes an oscillating electromagnetic field generating device configured for transmitting energy to a wireless power receiver associated with the vehicle. The pad further includes a foreign object detection arrangement including a plurality of foreign object detection coils. The solar panel arrangement includes a photovoltaic substrate with a front side and a rear side, a front side electrode arrangement and a rear side electrode arrangement. The foreign object detection coils are configured to function also as the front side electrode arrangement.

Apparatuses, systems, and methods of use for a magnetic coupling device is disclosed. The magnetic device may have a plurality of magnets to create a magnetic field to the devices enclosed within the device. The coupling device may have a housing that encloses and/or partially surrounds one or more rotatable shafts. The coupling device may couple an output shaft from a motor to an input shaft of a generator. The coupling device may have an electric coil that when energized may vary any applied magnetic field to the rotatable shafts. The magnetic device may have a first plurality of magnets positioned at a first radial position and a second plurality of magnets positioned at a second radial position, with the first magnets being rotatable and the second magnets being stationary. Multiple magnetic coupling devices may be coupled together in series to provide increased magnetic fields to the enclosed system.

Apparatuses, systems, and methods of use for a magnetic coupling device is disclosed. The magnetic device may have a plurality of magnets to create a magnetic field to the devices enclosed within the device. The coupling device may have a housing that encloses and/or partially surrounds one or more rotatable shafts. The coupling device may couple an output shaft from a motor to an input shaft of a generator. The coupling device may have an electric coil that when energized may vary any applied magnetic field to the rotatable shafts. The magnetic device may have a first plurality of magnets positioned at a first radial position and a second plurality of magnets positioned at a second radial position, with the first magnets being rotatable and the second magnets being stationary. Multiple magnetic coupling devices may be coupled together in series to provide increased magnetic fields to the enclosed system.

A solar-powered portable housing for a tool is also disclosed herein. The solar-powered portable housing for a tool can comprise a battery, one or more solar panels, a plug, a top enclosure, a bottom enclosure, a first slideable wall, and a first solar panel. The solar panels can be connectable to the battery. The solar panels can provide power source to the battery. The plug can allow the battery be charged through an electric power source. The top enclosure can be capable of housing a tool. The bottom enclosure can be capable of housing the battery. The battery can be capable of providing power to the tool. The first slideable wall can be mounted to one side of the housing. The first solar panel can be mounted to the first slideable wall.

A solar-powered portable housing for a tool is also disclosed herein. The solar-powered portable housing for a tool can comprise a battery, one or more solar panels, a plug, a top enclosure, a bottom enclosure, a first slideable wall, and a first solar panel. The solar panels can be connectable to the battery. The solar panels can provide power source to the battery. The plug can allow the battery be charged through an electric power source. The top enclosure can be capable of housing a tool. The bottom enclosure can be capable of housing the battery. The battery can be capable of providing power to the tool. The first slideable wall can be mounted to one side of the housing. The first solar panel can be mounted to the first slideable wall.

A PV-optimiser power system for a photovoltaic installation for supply of power from a photovoltaic installation. The system includes a first DC/DC converter connected to a PV panel and to one or more energy storage modules, and a second DC/DC converter, connected in parallel to the PV panel in a string of PV panels of a PV installation, wherein the second DC/DC converter is configured to operate as an optimiser and execute a maximum power point tracking algorithm (MPPT) to determine the maximum power output of the PV panel of the plurality of the PV panels in the string.

The present disclosure relates to a day-night photovoltaic system. More specifically, power supplied to a solar panel from a DC power supply part is output as a final output power PV together with power produced by the solar panel during the daytime, and is output as the final output power together with an ultra-high frequency wavelength generated by the sun explosion and induced to the solar panel during the night time. This provides the effects of stably supplying the power not only during the daytime but also during the night time.