4results about How to "Improve output power density" patented technology

The application discloses an energy storage device based on reverse electrodialysis technology, and designs the structure of the energy storage device, so that the transmission ions can be transmitted in the first structure and the second structure to form an internal loop; meanwhile, due to the existence of oxidizing substances and reducing substances, when the oxidizing substances undergo reduction reactions and the reducing substances undergo oxidation reactions, an oxidation-reduction potential difference can be formed; since the oxidation reactions and the reduction reactions continuously proceed, the oxidation-reduction potential difference can be continuously provided, and when an electric signal is outputted based on at least the oxidation-reduction potential difference, the electric signal can be continuously outputted at a high level, so that the energy storage device has a high output power density and good output stability.

The utility model discloses a critical space laser ranging device, including laser emission module and receiving module, laser emission module includes laser, emission lens barrel and emission collimating optical system, and the laser is fixed at the back end of emission lens barrel, and emission collimating optical system is located in emission lens barrel, and emission collimating optical system includes first double concave lens, first double convex lens, second double concave lens and second double convex lens, receiving module includes receiving lens barrel, focusing system and detector, and focusing system is located in receiving lens barrel, and focusing system includes third double convex lens, first meniscus and second meniscus, and the detector is fixed at the back end of receiving lens barrel. The utility model improves laser emitter's output power density and beam quality, realizes the spatial concentrated distribution of energy through the divergence angle of emission beam is suppressed, and the focusing characteristic of echo beam is optimized simultaneously, improves the optical coupling efficiency, thereby enhances the signal to noise ratio of detector receiving signal.

The invention provides a self-assembled composite biological membrane anode material, a microbial fuel cell and a preparation method of the microbial fuel cell, and relates to the technical field of fuel cells. According to the high-performance microbial fuel cell provided by the invention, a commercial carbon material loaded cyclodextrin modified iron-based or manganese-based / molybdenum-based oxide is used as an anode substrate material, and nano-material powder of graphene oxide and metal oxide is further added into anode liquid containing microorganisms, so that the high-performance microbial fuel cell is prepared. Electrons generated by microbial metabolism can drive graphene oxide to be reduced on an anode, and at the same time, the electrons and added metal oxide powder are self-assembled to form a multistage electron transfer hybrid biological membrane which has excellent electro-catalytic performance and good conductivity and cooperatively promotes indirect / direct extracellular electron transfer and intercellular electron transfer. The output power density of the microbial fuel cell can be greatly improved, and the application prospect is good.

The application relates to a friction nanometer power generation device and a self-powered flow sensing system. The device comprises a top cover, a multilayered shell, a base, an FEP tab, a copper patch electrode, a nylon film, an aluminum shaft and an impeller; the top cover is connected with the aluminum shaft through a nut at the top; the FEP tab is fixed in the vertical strip structure of the top cover; the aluminum shaft passes through the center of the impeller; the bearing is fixed on the base; the bearing guides the aluminum shaft; the copper patch electrode and the nylon film are attached to each layer of the shell; the nylon film rubs against the FEP tab; the multilayered shell is fixed in the groove of the base; the impeller drives the aluminum shaft to rotate; the aluminum shaft drives the top cover to rotate; the top cover drives the FEP tab to rotate and then rubs against the nylon film. The application can improve the output power density per unit volume, the capacitor can store more energy per unit time, the LED signal lamp can be ensured to operate for a long time, the flow level can be fed back, and the instantaneous flow size can be accurately obtained through the processing of an electrometer, a transmitter, a DAQ acquisition card and a Labview module.