6results about How to "Reduce overvoltage" patented technology

This application provides an energy storage system, including: a housing; an energy storage device housed within the housing; and a voltage limiting device, wherein a first terminal of the voltage limiting device is electrically connected to the energy storage device, and a second terminal of the voltage limiting device is electrically connected to the housing or a conductive device within the housing. This system can limit overvoltage within the energy storage device's housing while reducing the risk of thermal runaway in the energy storage system.

The application relates to the technical field of aluminum electrolytic cells, and provides a heat energy recycling treatment system for anode gas of an aluminum electrolytic cell, which comprises an aluminum electrolytic cell, a plurality of anodes are arranged in the aluminum electrolytic cell, a plurality of through holes are arranged on each anode, a gas collecting pipe connected with each through hole is arranged on the top of the anode, the gas collecting pipe is connected with an air inlet of a heat exchanger, the heat exchanger comprises a heat preservation shell, an air inlet, an air outlet, a water inlet and a water outlet are arranged on the heat preservation shell, a heat storage medium, an air pipe and a water pipe are arranged in the heat preservation shell, the two ends of the air pipe are connected with the air inlet and the air outlet respectively, the two ends of the water pipe are connected with the water inlet and the water outlet respectively, the heat storage medium is filled in the heat preservation shell, the water inlet is connected with an external cold water source, and the water outlet sends heated hot water to a user water place through a supply pipeline. The heat energy carried by the discharged anode gas can be recycled and utilized, and energy can be saved.

The application discloses a coupled inductance type ZSCB based on topology switching and a reclosing-rebreak method thereof, and the ZSCB comprises a circuit breaker topology and a control circuit. DC The anode of the thyristor T is connected with a direct current power supply V DC The cathode is connected with one end of the inductor L1, the other end of the inductor L1 is connected with one end of the inductor L2, the other end of the inductor L2 is connected with a load; S1 and S2 are connected in series and then connected in parallel between the two ends of T and L1, wherein the drain of S1 is connected with the anode of T, and the source of S2 is connected with the connection point of L1 and L2; S3 and S4 are connected in series and then connected with the source of S2 at one end and V DC The other end of the capacitor C is connected with the connection point of S3 and S4; the control circuit changes the connection mode of the capacitor before each reclosing, so that the capacitor voltage can exactly meet the required condition for the next rebreak, and the reclosing-rebreak under permanent fault is realized.

The present invention relates to a positive electrode active material for an all-solid-state battery, comprising a core portion comprising a lithium metal oxide; and a coating portion comprising a dielectric having a cubic structure on the surface of the core portion, and a positive electrode comprising same, and an all-solid-state battery.

Single-phase full-bridge intelligent power module based on gallium nitride power chip and manufacturing method, including ceramic substrate, power chip, drive chip, power copper surface, decoupling capacitor, printed circuit board and shell; a plurality of power copper surfaces are arranged on the ceramic substrate, gaps are left between adjacent power copper surfaces, the decoupling capacitor and the power chip are arranged on the power copper surface; the printed circuit board is covered on the ceramic substrate, and a plurality of drive chips are arranged on the printed circuit board; the ceramic substrate, the power chip, the drive chip, the power copper surface, the decoupling capacitor and the printed circuit board are arranged in the shell. The processing flow designed by the application is easy to realize the automation of power module processing and preparation, effectively reduces the preparation steps of the power module, improves the yield of the power module preparation, and the raw material cost of processing and use is low, effectively controls the production cost of the power module. At the same time, the preparation process can guarantee the electrical insulation performance and the reliability of the electrical bonding connection in the power module.

The application discloses a kind of variable curvature variable cross-section orthogonal grid composite component autoclave forming method, the digital model of variable curvature variable cross-section orthogonal grid composite component to be formed is divided into through grid assembly, non-through grid assembly and reinforcing layer assembly;And design corresponding mold laying tooling, mold laying is carried out, then respectively pre-compaction is carried out again assembly co-solidification.The application is formed by using "soft mold+expansion silica gel" auxiliary autoclave forming, adaptive variable curvature variable cross-section orthogonal grid composite component, and the forming mode avoids the phenomena such as fiber accumulation, fiber wrinkle, fiber fracture in grid intersection area, while reducing overpressure or insufficient pressure phenomenon, improve component strength;And the forming mode manufacturing process is simple, combination between different molds is convenient, easy to demould, greatly improve production efficiency, with good application value and popularization prospect.