3results about How to "Uniform conductivity" patented technology

The invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

The present invention pertains to a negative electrode for a lithium secondary battery, a method for manufacturing same, and a lithium secondary battery including same. More specifically, the negative electrode for a lithium secondary battery according to the present invention has a protective layer containing a three-dimensional structure composed of metal and lithium nitride, and thus uniform ionic conductivity and electrical conductivity can be induced on the surface of the negative electrode.

The utility model belongs to the energy -conserving and carbon -reducing electrolytic aluminium anode technical field, especially relates to a current -sharing composite electrolytic aluminium anode structure, and anode structure includes aluminium alloy guide rod, is located aluminium alloy guide rod bottom and its fixed connection's section is the composite transition structure of convex, and the composite transition structure is fixedly connected with carbon top through the graphene / copper composite expansion connecting column of its bottom, the utility model discloses the addition of graphene / copper composite board has reduced the interface resistance between expansion connecting structure and carbon, and when anode is installed on electrolytic cell, anode overall temperature rises, graphene / copper composite expansion connecting structure is heated, produces the thermal expansion outward, and the contact resistance with carbon is also smaller.