30results about How to "Cycle well" patented technology

A method for making lithium iron phosphate is provided. In the method, an alkali is reacted with a ferric salt in water to form a red colored ferric hydroxide precipitate in the water. The red colored ferric hydroxide precipitate is mixed with deionized water, organic solvent, and emulsifier to form an water-in-oil emulsion. The phosphoric acid solution and iron metal powder are added to the water-in-oil emulsion to form ferrous hydrogen phosphate. A lithium source is introduced to the water-in-oil emulsion and reacted with the ferrous hydrogen phosphate to form a precursor in the water-in-oil emulsion. The precursor is heated in a protective gas at a heating temperature in a range from about 600° C. to about 800° C. to form lithium iron phosphate.

The invention discloses a graphite negative electrode material, a lithium ion battery, a preparation method and an application. The preparation method of the material comprises the following steps: ① pulverizing and shaping the artificial graphite raw material to obtain powder; ② graphitizing the powder to obtain material A; ③ sieving material A to obtain material B; ④ surface coating and modifying the mixture of material B and binder to obtain material C; ⑤ subjecting material C to carbonization treatment. The graphite negative electrode material of the present invention has high tap density, relatively high battery capacity, and the interaction of various features improves the comprehensive advantages of the material, ensures high capacity and high compaction characteristics, and improves the high rate performance of the material; it is beneficial to improve The lithium-ion battery graphite negative electrode material has low-temperature electrical properties, simple process, low production cost, and is suitable for industrial production.

A solar energy and biogas combustion radiator combined sludge drying system comprises a solar greenhouse module, a biogas combustion radiator module, a solar photovoltaic panel and illumination module, a sludge conveying and turnover module and a deodorization module. The solar greenhouse module comprises a peripheral greenhouse enclosure structure, a top step type flat-plate type air heat collector and a bottom. The biogas combustion radiator module comprises biogas, a biogas combustion radiator, a biogas conveying pipeline, a mass flow meter and an electric control valve. The solar photovoltaic panel and illumination module comprises a solar photovoltaic panel and an LED energy-saving lamp. The sludge conveying and turnover module comprises a feeding system, a paving system, a collection system and a sludge turnover machine. The deodorization module comprises an axial flow exhaust fan, an air pipe and a deodorization tower. Solar energy can be collected and utilized to a larger extent, the drying efficiency of sludge in a sewage treatment plant is improved, and pollution of odors of tail gas in the drying process of the sludge to the environment is reduced.

The invention discloses a multifunctional health-care chair, and relates to a health-care chair. The multifunctional health-care chair aims at solving the problem that no instrument can exert a fundamental, health-care and auxiliary therapeutic effect on cardiovascular and cerebrovascular diseases so far. The lower end of a chair back is connected with the rear parts of two chair seat side plates by a chair back angle adjustment and limitation mechanism; two leg reciprocating motion devices are mounted at the upper end of the chair back, and are symmetrically arranged relative to a center line of a length direction of the chair back; two thigh root holding motion devices are mounted below the inside of the chair back, and are symmetrically arranged relative to the center line of the length direction of the chair back; and a hip jacking and horizontal reciprocating motion device is mounted in a chair seat. A unique motion mode of the multifunctional health-care chair is completely accomplished on the health-care chair, so that a user can achieve a therapeutic purpose during convenient and quick motion, and the multifunctional health-care chair is particularly suitable for fatigue recovery of the old and other people after the motion.

The invention discloses a composite graphite cathode material and a preparation method thereof. The composite graphite cathode material comprises graphite particles a and b, wherein the graphite particles a are secondary artificial graphite particles formed by granulating, coating and bonding oil-based petroleum coke; the graphite particles b are secondary composite graphite particles, adopting core-shell structures, formed by removing impurities from small-particle diameter natural graphite balls, and spherodizing, coating and bonding the small-particle diameter natural graphite balls; the composite graphite material is prepared by mixing the graphite particles a and b, adding a binding agent, coating, bonding and performing high temperature carbonization. By compounding the two secondary graphite particles with different characteristics to prepare the composite graphite material, the capacity of graphite is improved and the problems that the graphite is poor in rate capability, poor in high-current charge and discharge performance, poor in compacting performance are solved.

A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li2[B12F12] and LiBOB.