61results about How to "Reduce output capacity" patented technology

The present invention provides a semiconductor device having a semiconductor multi-layer structure which includes at least an active layer having at least a quantum well, and the active layer further including at least a luminescent layer of InxAlyGa1−x−yN (0<x<1, 0≦y≦0.2), wherein a threshold mode gain of each of the at least quantum well is not more than 12 cm−1, and wherein a standard deviation of a microscopic fluctuation in a band gap energy of the at least luminescent layer is in the range of 75 meV to 200 meV.

Disclosed herein is a magnetron. The magnetron comprises an anode cylinder, upper and lower magnets provided to upper and lower portions of the anode cylinder, and upper and lower magnetic poles connected to the magnets, respectively. Each of the magnets has an inner diameter of 19˜21 mm, a thickness of 11.5˜12.5 mm, and an outer diameter of 50˜54 mm.

The invention provides a battery cover plate assembly, a preparation method of the battery cover plate assembly, a single battery and a battery pack. The battery cover plate assembly comprises cover plates, hollow rivets, an electrode terminal, sealing layers and insulating parts, wherein the sealing layers are arranged between the electrode terminal and the insulating parts; the sealing layers in a fused state can be fused with the insulating parts; and microcellular structures are distributed on the surfaces contacted with the sealing layers, of the electrode terminal. The battery cover plate assembly has the following advantages: the sealing layers are arranged between the electrode terminal and the insulating parts and the electrode terminal is pretreated, thus reducing the influence of deformation, especially shrinkage of polymer insulating parts due to various environmental factors, such as temperature and the like on sealing combination of the electrode terminal and the cover plate, improving the binding force of the inorganic metals and the organic polymers, not only improving the connection firmness of the electrode terminal and the cover plate, but also further enhancing the sealing performance of the cover plate assembly and meeting the development requirements of the current batteries. The invention provides the single battery with more stable performance and the battery pack.

The invention discloses a PDMS-PTFE film for improving the performance of a nano friction generator and a preparation method thereof, belonging to the technical field of friction nano power generation. The preparation method is as follows: by weight, take polydimethylsiloxane (PDMS) prepolymer and dissolve it in n-hexane, mix and stir, so that the two are fully mixed evenly; add PTFE emulsion to the mixed solution, and heat and stir to prepare Mixed solution; cool the above mixed solution to room temperature, add tetraethyl orthosilicate crosslinking agent, then add dibutyltin dilaurate catalyst, stir at room temperature to prepare a uniformly mixed PDMS solution to be solidified; then degas it; The solution is applied to the substrate of the nanogenerator, cured, and the film is peeled off from the substrate to obtain a PDMS-PTFE film. The present invention provides a method with simple process, low cost, and can be used for large-scale production to prepare PDMS-PTFE transparent flexible film for TENG, and provides a new method and idea for the production of high-performance TENG materials.

The invention relates to a valve group charging device and a valve group charging control method. The device includes a printed circuit board, a controller, a valve group to be charged, a power switch and a charging power supply. The valve group to be charged, the power switch and the charging power supply are arranged on a printed circuit board On the circuit board, the printed circuit board is provided with an optical fiber interface. The valve group to be charged includes at least two charging sub-modules connected in parallel or in series. Each charging sub-module is provided with a charging circuit. The controller communicates with multiple charging sub-modules through the optical fiber interface. Communication is used to send charging control signals to each charging sub-module in turn, and the charging sub-module starts the corresponding charging circuit in response to the charging control signal. The above-mentioned valve group charging device and valve group charging control method can alternately charge each sub-module without At the same time, all the sub-modules are charged at one time, so a higher charging voltage is not required, the required output capability of the charging power source is reduced, and the charging cost is reduced.