5results about How to "Improve high temperature" patented technology

The present invention relates to a lithium secondary battery having improved high-temperature cycle characteristics, and more particularly, to a lithium secondary battery including a cathode, an anode, a separator, and an electrolyte, wherein the cathode includes lithium iron phosphate and lithium nickel cobalt manganese oxide as a cathode active material, the cathode has a loading amount of 32 mg / cm 2 to 60 mg / cm 2 , and the electrolyte includes a lithium salt, a first organic solvent, a second organic solvent, a first additive, and a second additive, wherein the first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate-based organic solvent, the first additive is an oligomer including a repeating unit derived from a monomer represented by Formula 1 and a repeating unit derived from a monomer represented by Formula 2, and the second additive is an imidazole compound.

This invention discloses a method for regenerating aged asphalt based on waste cooking oil, belonging to the field of road engineering technology. The method includes the following steps: First, the waste cooking oil is esterified by mixing sodium hydroxide solution, methanol, and waste cooking oil; then, the esterified waste cooking oil is epoxidized by mixing hydrogen peroxide, glacial acetic acid, concentrated sulfuric acid, and the esterified waste cooking oil; finally, the esterified and epoxidized waste cooking oils are simply mixed to prepare a regenerating agent, which is used to regenerate aged asphalt to obtain regenerated asphalt. The road-use regenerated asphalt prepared by this invention has excellent high-temperature performance, low-temperature performance, rheological properties, and shear resistance, essentially restoring the performance indicators of the base asphalt. It can be used in road engineering construction, providing a useful reference for the resource utilization of waste cooking oil and aged asphalt.

In order to solve the problem that a commercialized lithium ion battery electrolyte cannot give consideration to both high-temperature performance and low-temperature performance, the invention provides a wide-temperature electrolyte, the wide-temperature electrolyte comprises a non-aqueous organic solvent, a lithium salt and an additive, the additive comprises an additive A, and the structural formula of the additive A is shown in the specification, r1 and R2 are respectively and independently selected from nitro, substituted or unsubstituted alkyl, cyano, halogen or hydrogen, at least one of R1 and R2 is not hydrogen, and when one of R1 and R2 is hydrogen, the other one is nitro. By adding the additive A into the electrolyte, the battery can have good high-temperature and low-temperature performance at the same time, the wide-temperature performance of the electrolyte is more excellent, and the use scene of the lithium ion battery can be widened.

The utility model discloses a membrane disc coupling with flexible laminated sheet relates to membrane disc coupling technical field. The utility model discloses a connecting shaft, the symmetry sleeve joint of positive disc has on the circumference lateral wall of connecting shaft, the lateral of positive disc is equipped with reverse disc, and the opposite surface of positive disc and reverse disc all is equipped with connecting assembly, and connecting assembly includes locating rod, and the opposite surface of positive disc and reverse disc all annular array fixed connection has locating rod, and the locating rod on positive disc and reverse disc is staggered distribution, and the circumference lateral wall of locating rod is equipped with nut with screw thread connection, and the common flexible component is equipped between positive disc and reverse disc. The utility model sets up connecting assembly, reduces the number of independent individual, avoids the loss of locating rod, guarantees the normal dismounting of positive disc and reverse disc, and through setting up flexible component, and flexible laminated sheet is stacked by multiple metal sheets, and the structure rigidity is higher, can bear greater torque and impact load, has greater flexibility on angular and axial compensation.

The present invention provides a composite solid electrolyte including: a support layer including a high heat resistance polymer; and an electrolyte layer which is formed on both surfaces of the support layer and contains a fluorine-based polymer and lithium ion conductive inorganic particles, in which the support layer includes an interpenetrating layer in which at least a part of the components of the electrolyte layer are mixed.