2results about How to "Lower bulk resistance" patented technology

The utility model discloses a low -cost piece formula contact piece jack structure relates to connector technical field, including conductive main part and steel case, and the conductive main part includes the elastic region and the end region of increasing thickness in proper order, and is provided with the transition area of thickness conversion between the elastic region and the end region, is equipped with the elastic contact cantilever on the elastic region, and the steel case sets up on the transition area and cooperates with the elastic contact cantilever on the elastic region. The material of elastic region is thin, and a plurality of contacts are arranged on the elastic contact cantilever, and the conductive function can be realized after contacting with the pin; the transition area is the thick, thin material conversion area; the end region is the connecting area of pencil and similar pencil function components, and generally uses the welding, crimping etc. Mode to realize the connecting function. The steel case is wrapped in the outside of conductive main part, can promote the contact stability and the ageing resistance of elastic region contact, realizes the anti -back function simultaneously, can guarantee the contact stability of contact region, and can solve the problem of few and high cost of existing contact.

This invention discloses a foamed aluminum electrode foil for aluminum electrolytic capacitors and its preparation method, belonging to the technical field of aluminum electrolytic capacitors. The preparation method of the foamed aluminum electrode foil includes the following steps: preparing an aluminum powder slurry, uniformly coating it onto the surface of a pretreated foamed aluminum foil, and then drying and step-by-step sintering to form a strong metallurgical bond between the aluminum powder particles and between the aluminum powder particles and the foamed aluminum matrix, thus obtaining the electrode foil. This invention utilizes the inherent three-dimensional porous structure of foamed aluminum to obtain an ultra-high specific surface area, while simultaneously constructing a highly efficient three-dimensional conductive network through a dense aluminum layer on the surface, significantly enhancing the mechanical strength of the foil. The resulting electrode foil possesses high specific capacitance, low equivalent series resistance, high mechanical strength, and good processability, providing a key material foundation for the preparation of next-generation high-performance, high-capacity, low-ESR aluminum electrolytic capacitors.