2results about How to "Adjust the force" patented technology

The utility model provides a battery module which comprises a shell and a battery cell group, the shell at least comprises an end plate arranged in the thickness direction of the battery cell group, a plate-shaped spring is arranged in the end plate, and the middle part of the plate-shaped spring protrudes towards the battery cell group; the plate-shaped spring is formed by superposing a plurality of arc-shaped spring pieces with different radiuses; and pressure relief lug plates are arranged at the two ends of the arc-shaped spring piece farthest from the battery cell group and are in contact with the inner wall of the second main plate in the end plates. The plate-shaped springs, the elastic insulation pads and the end plates can reasonably absorb the expansion displacement of the battery cell monomers, provide reasonable constraining force for the battery cell monomers to antagonize the expansion trend of the battery cell monomers, and inhibit the middle parts of the battery cell monomers from bulging; the pressure relief lug plate can release the pressure borne by the plate-shaped spring to the edge part of the large surface of the second main plate, the stress condition of each part of the large surface of the second main plate is adjusted, the deformation out-of-tolerance of the second main plate is avoided, and the cycle performance and the safety performance of the battery cell are improved synergistically.

This invention discloses a hydrodenitrification catalyst, its preparation method, and its application, comprising the following steps: (1) AlPO4-5 phosphorus aluminum molecular sieve with a crystal size of less than 2 μm and alumina are sequentially added to deionized water, and a carrier raw material slurry is obtained by ultrasonic emulsification. The carrier raw material slurry is filtered, dried, and ground to obtain a carrier raw material powder. The carrier raw material powder is mixed evenly with a molding aid, and then extruded, dried, and calcined to obtain a catalyst support; (2) Metal salts containing zinc, nickel, and tungsten elements are dissolved in deionized water to obtain a metal impregnation solution. The catalyst support is impregnated using an equal-volume impregnation method, and then cured, dried, and calcined to obtain a hydrodenitrification catalyst. The preparation method of this invention can improve the utilization efficiency of AlPO4-5 phosphorus aluminum molecular sieve, inhibit the formation of nickel-aluminum spinel inert substances, promote the formation of a highly active hydrogenation phase by the active metal, improve the utilization efficiency of the active metal Ni, and thus improve the hydrogenation activity of the catalyst.