4results about How to "Increase the output voltage" patented technology

The invention provides a compact broadband frequency insensitive rectifier for collecting electromagnetic energy in an environment, and aims to face the field of wireless power supply Internet of Things equipment. The invention finds that the double-branch LC series-parallel structure has a key characteristic that the impedance is insensitive to frequency change. By fully utilizing the characteristic, a simple matching network is designed to realize broadband performance. Through a simulation and measurement combined method, the operation effectiveness of the proposed topological structure is verified, and the design of the broadband rectification circuit is successfully realized. The rectification circuits of three different matching networks are compared, and the optimal circuit is determined. Under the input of 8 dBm and the load of 1.2 k omega, the peak power conversion efficiency of the rectifier reaches 74.75%. And the efficiency is kept above 60% at the relative bandwidth of 81.1%. Under the load condition of 0.9 k omega, the relative bandwidth with the efficiency of more than 60% is kept at 81.1%, and the bandwidth with the efficiency of more than 50% is expanded to 100%.

The application provides an organic lithium-iodine battery based on a two-electron transfer mechanism and a manufacturing method and application thereof. The organic lithium-iodine battery comprises a positive electrode, a negative electrode and an organic electrolyte. The positive electrode active material used by the positive electrode comprises iodide and / or bromide, and the organic electrolyte comprises an organic solvent containing a chlorine-containing additive. The organic lithium-iodine battery uses iodide as the positive electrode active material, thereby avoiding the instability and safety hazards existing in the current I2 positive electrode. The organic solvent containing the chlorine-containing additive is used as the organic electrolyte, and excellent electrochemical performance is provided through a two-electron conversion mode. Compared with a traditional lithium-iodine battery, the organic lithium-iodine battery has higher capacity, energy density and higher output voltage. In addition, the organic lithium-iodine battery has excellent low-temperature insensitivity. At-25 DEG C, the battery realizes 2500 cycles at the cost of 20% capacity decay, and can still work stably at a low temperature of-30 DEG C.

This invention provides a ceramic proton exchange membrane for microbial fuel cells and its preparation method, comprising the following steps: mixing clay, an inorganic modifier, and an organic modifier to obtain a solid powder; the inorganic modifier is alumina and silicon dioxide, and the organic modifier is selected from one or more of wheat flour, biochar powder, straw powder, and bamboo powder; the solid powder is ball-milled, granulated, pressed into sheets, and calcined to obtain the ceramic proton exchange membrane. This invention addresses the problems of poor mass transfer performance and low power generation performance of traditional pure clay ceramic membranes. Using clay as the matrix material, and through specific inorganic and organic modifiers, the pore structure of the material is adjusted. A novel ceramic proton exchange membrane is then prepared through ball milling, granulation, pressing, and calcination. This membrane has low manufacturing cost, good proton transport efficiency, and extremely low internal resistance. When applied to microbial fuel cells, it can achieve higher output voltage and more stable power generation performance.

The application relates to a dual-purpose self-powered wind turbine blade monitoring device in the field of new energy sources. The device is mainly composed of a stator, a rotating disc, a half shaft, a coil, a rolling body, a framework, a driver and a circuit board. Inertial blocks are arranged on the outer edge of the stator. The stator is provided with a transducing cavity, axially communicating holes and an excitation cavity. The framework is composed of a frame cylinder and the end plates. The stator is sleeved on the half shaft, the framework is arranged in the transducing cavity, and the circuit board is arranged in the excitation cavity. The coil is arranged on the frame cylinder, and the rolling body is arranged in the cylinder cavity. The rolling body is a permanent magnet. When the rolling body is a cylinder, the axis of the rolling body is perpendicular to the axis of the coil. The drivers are evenly distributed on the rotating disc in the circumferential direction. The drivers are permanent magnets or are made of ferromagnetic materials. The rotating disc is fixed on the half shaft, and the drivers are oppositely arranged with the rolling body. When the half shaft rotates, the drivers rotate relative to the rolling body and apply a torque to the rolling body. The rolling body rolls, and the magnetic poles and the magnetic field strength penetrating through the coil of the rolling body alternately change. The coil cuts the magnetic lines to generate electricity.