Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.

Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.

This application is directed to an apparatus for providing electrical charge to a vehicle. The apparatus comprises a driven mass, a generator, a charger, a hardware controller, and a communication circuit. The driven mass rotates in response to a kinetic energy of the vehicle and is coupled to a shaft such that rotation of the driven mass causes the shaft to rotate. The driven mass exists in one of (1) an extended position and (2) a retracted position. The generator generates an electrical output based on a mechanical input coupled to the shaft such that rotation of the shaft causes the mechanical input to rotate. The charger is electrically coupled to the generator and: receives the electrical output, generates a charge output based on the electrical output, and conveys the charge output to the vehicle. The controller controls whether the driven mass is in the extended position or the retracted position in response to a signal received from the communication circuit.

This application is directed to an apparatus for providing electrical charge to a vehicle. The apparatus comprises a driven mass, a generator, a charger, a hardware controller, and a communication circuit. The driven mass rotates in response to a kinetic energy of the vehicle and is coupled to a shaft such that rotation of the driven mass causes the shaft to rotate. The driven mass exists in one of (1) an extended position and (2) a retracted position. The generator generates an electrical output based on a mechanical input coupled to the shaft such that rotation of the shaft causes the mechanical input to rotate. The charger is electrically coupled to the generator and: receives the electrical output, generates a charge output based on the electrical output, and conveys the charge output to the vehicle. The controller controls whether the driven mass is in the extended position or the retracted position in response to a signal received from the communication circuit.

An integrated flexible self-charging power supply for energy harvesting in an agricultural environment and a preparation method thereof are provided, wherein the integrated flexible self-charging power supply for the energy harvesting in the agricultural environment includes polydimethylsiloxane (PDMS) and a graphene electrode entirely encapsulated in the PDMS, where the graphene electrode includes a power generation portion and an interdigital portion; the power generation portion and the interdigital portion are integrally encapsulated in the PDMS; the interdigital portion is covered with a solid electrolyte; two ends of the interdigital portion of the graphene electrode are led out by wires to serve as two output ends of the power supply.

The disclosure is directed to methods and systems for a battery configured to store a first energy in a chemical form of the battery at a battery voltage level; an electrical load configured to draw an electrical current from the battery in response to an energy requirement of the electrical load, wherein the battery voltage level is configured to decrease in response to the electrical current being drawn from the battery by the electrical load; and a capacitor module in electrical communication with the battery and configured to store a second energy as an electric field of the capacitor module at a capacitor voltage level. The capacitor module can be in electrical communication with the load via the battery and can be configured to convey at least a portion of the second energy to the battery or to the load in response to a voltage differential between the capacitor voltage level and the battery voltage level exceeding a threshold to prevent the battery voltage level from dropping below a battery voltage threshold.

A nanoporous carbon-loaded cement composite that conducts electricity. The nanoporous carbon-loaded cement composite can be used in a variety of different fields of use, including, for example, a structural super-capacitor as an energy solution for autonomous housing and other buildings, a heated cement for pavement deicing or house basement insulation against capillary rise, a protection of concrete against freeze-thaw (FT) or alkali silica reaction (ASR) or other crystallization degradation processes, and as a conductive cable, wire or concrete trace.

A nanoporous carbon-loaded cement composite that conducts electricity. The nanoporous carbon-loaded cement composite can be used in a variety of different fields of use, including, for example, a structural super-capacitor as an energy solution for autonomous housing and other buildings, a heated cement for pavement deicing or house basement insulation against capillary rise, a protection of concrete against freeze-thaw (FT) or alkali silica reaction (ASR) or other crystallization degradation processes, and as a conductive cable, wire or concrete trace.

A logging system and method for operating a logging system are typically used in a wellbore. The logging system may include a logging instrument including a rechargeable energy storage and logging electronics, and a cable configured to trickle charge the rechargeable energy storage. The rechargeable energy storage may include an ultracapacitor. The rechargeable energy storage may be trickle charged through the cable from a remote power source.

The present disclosure discloses a three-dimensional integration system of an RFID chip and a supercapacitor and a manufacturing method thereof. The three-dimensional integration system of an RFID chip and a supercapacitor includes: a silicon substrate (200); an RFID chip (201) disposed on a front surface of the silicon substrate (200); a supercapacitor disposed on a back surface of the silicon substrate (200) at a position corresponding to the RFID chip (201), but not in contact with the RFID chip (201); through silicon via structures penetrating the silicon substrate (200) and respectively disposed on two sides of the RFID chip (201); wherein the RFID chip (201) has a chip positive electrode (2021) and a chip negative electrode (2022) electrically connected with a capacitor contact positive electrode (2131) and a capacitor contact negative electrode (2132) of the supercapacitor through the through silicon via structures on the two sides respectively; and a packaging substrate (218) electrically connected to the capacitor contact positive electrode (2131) and the capacitor contact negative electrode (2132).