4results about How to "Good for maintaining stability" patented technology

This invention discloses a method for preparing interface-reinforced niobium pentoxide / porous graphene and its energy storage application. The method involves adding porous graphene oxide during the solvothermal synthesis of a niobium pentoxide precursor to obtain a composite precursor of niobium pentoxide and porous graphene oxide. This precursor is then annealed under a protective atmosphere to obtain the interface-reinforced niobium pentoxide / porous graphene composite material. The composite material obtained by this invention exhibits excellent performance as an electrochemical energy storage material. Furthermore, the preparation method of this invention is simple to operate, requires no complex equipment, and is easily controlled, making it suitable for mass production.

This application relates to a high-nickel cathode material and its preparation method, and a lithium-ion battery. The chemical formula of the high-nickel cathode material is Li. σ Ni a Co b Mn c M1 x M2 y M3 z O 2+α Wherein, 0.80<σ<1.20, a+b+c+x+y+z=1, 0.7<a<1.0, 0<b<0.05, 0<c<0.3, 0<x<0.3, 0<y<0.3, 0<z<0.3, 0<α<0.1, M1, M2, and M3 are each independently including at least one of Al, Co, Zr, Ti, Mg, Y, La, Sr, Ba, W, Mo, Nb, and Si, and M1, M2, and M3 are all different; the high-nickel cathode material includes a high-nickel material matrix and a coating layer. Cu-Kα rays are used to perform XRD measurements on the high-nickel material matrix and the high-nickel cathode material, respectively. The intensity of the (104) diffraction peak appearing in the diffraction angle range of 44-45° is recorded as I. b (High-nickel material matrix) and I c (High-nickel cathode material), the unit of diffraction peak intensity is counts, let the diffraction peak intensity difference P = I c -I b 0 < P < 1000. The high-nickel cathode material provided in this application has better high-temperature cycling performance and a low DC internal resistance growth rate.

This invention provides a nutritional composition rich in A2-β-casein that promotes calcium absorption, belonging to the field of functional foods. The invention obtains A2-β-casein through genotyping and purification, and then combines it with colostrum basic protein and a small amount of milk-derived calcium to form compositions with different ratios. This invention utilizes a Caco-2 cell model to study the fluorescence imaging of calcium ion influx into Caco-2 cells, the calcium absorption-promoting activity, and the absorption pathway, thereby comprehensively evaluating the calcium absorption characteristics of this composition and obtaining a nutritional composition rich in A2-β-casein that promotes calcium absorption.

This invention relates to the field of medical drainage and fluid management technology, and discloses a multi-channel drainage management device, including a main drainage pipe, a support base, a channel adjustment mechanism, and multiple adjustable peristaltic pumps. Multiple branch pipes correspond to flushing, drainage, and drug administration channels respectively, and are selectively connected to the main drainage pipe through the channel adjustment mechanism. The channel adjustment mechanism employs a rotational selection and positioning limit structure to achieve stable switching of channel connectivity under different operating conditions. Each branch pipe is equipped with a flow sensor and a pressure sensor for real-time monitoring of the pipe's internal conditions and, in conjunction with the main controller, adjusts the operating state of the peristaltic pumps. The peristaltic pumps feature an adjustable squeezing structure and incorporate a manual adjustment mechanism to adapt to pressure and flow control requirements under different fluid conditions. This device enables integrated management of flushing, drainage, and drug administration functions, has a compact structure, and provides reliable channel switching, which helps improve the safety and stability of clinical operations.