61results about How to "Raise the reduction potential" patented technology

The invention provides a high temperature-resistant electrolyte solution of a lithium ion battery. The high temperature-resistant electrolyte solution of the lithium ion battery comprises the raw materials of lithium electrolyte salt, an organic solvent, a high temperature-resistant additive, a film forming additive and a circulatory stability additive, wherein the concentration of the lithium electrolyte salt in the organic solvent is 0.5-2 mol / L; the organic solvent comprises the following components in parts by volume: 5-30 parts of a high-dielectric-constant organic base solvent, 40-65 parts of a high-boiling-point organic solvent, and 5-55 parts of a low-viscosity organic solvent; the high temperature-resistant additive is at least one of lithium tetrafluoroborate, lithium difluoroborate, lithium bis(malonato)borate, lithium bis(oxalate)borate and lithium malonato oxalate borate, the mass of the high temperature-resistant additive accounts for 0.1-8% of the total mass of the electrolyte solution, the mass of the film forming additive accounts for 0.2-4% of the total mass of the electrolyte solution, and the mass of the circulatory stability additive accounts for 0.5-5% of the total mass of the electrolyte solution. According to the invention, the high temperature resistance and circulatory stability of the lithium ion battery are effectively improved.

A pure cotton fabric vat dye dyeing method includes the following steps of firstly, preparing fabric; secondly, conducting pretreatment on the fabric; thirdly, preparing a vat dye leuco body solution; fourthly, conducting dip dyeing on vat dye; fifthly, conducting soaping; sixthly, conducting after treatment, wherein dip dyeing is conducted on vat dye in the fourth step, deoxygenation is conducted in a dyeing device, nitrogen is introduced into the dyeing device, the dyeing device is then sealed, pure cotton fabric where pretreatment is conducted is placed in the leuco body solution of vat dye, the temperature is raised to 60 DEG C at the temperature rise speed of 1 DEG C per minute, heat preservation is conducted for 12minutes, 2.5 g / L salt is added, dyeing continues to be conducted for 12 minutes, dyeing is finished, and dyed pure cotton fabric is oxidized in air and then washed through cold water.

The invention relates to a zeolite-loaded nano-iron material and a preparation method thereof. It is composed of zeolite and nano-iron loaded on the pores and surfaces of zeolite particles. The average particle size of the zeolite is 80-100 mesh, and the loading amount of nano-iron is 1 wt%. ~1.3wt%, the particle size is 50~200nm. It is made by soaking and rinsing zeolite particles with HCl solution, 3 Shake the reaction in the solution until the zeolite is saturated to adsorb Fe 3+ , rinsed with deionized water and then added NaBH 4 The solution shakes and reacts, removes the supernatant, freezes and dries to obtain the finished product. The zeolite-loaded nano-iron prepared by the present invention has strong adsorption capacity and reduction ability for pollutants. Tests have shown that the zeolite-loaded nano-iron material of the present invention can realize various heavy metal ions such as Pb in water bodies. 2+ 、Cd 2+ and Cr 6+ The removal rate can reach more than 99%. It has the advantages of high removal rate and fast reaction rate. The preparation process is simple and controllable, and the cost is low. It provides a better technical approach for solving heavy metal pollution in water.