35 results about "UltraBattery" patented technology

An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a plurality of chemically functionalized nano graphene platelets (f-NGP) or exfoliated graphite having a functional group that reversibly reacts with a lithium atom or ion. In a preferred embodiment, a lithium super-battery having a f-NGP positive electrode and Li4Ti5O12 negative electrode exhibits a gravimetric energy ˜5 times higher than conventional supercapacitors and a power density ˜10 times higher than conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.

The invention discloses a hydrothermal preparation method of carbon coated lead powder composite materials for lead carbon super batteries. Deionized water is added into carbohydrates to be prepared into solution or sol, lead powder is added for ultrasonic dispersion, the mixture is subjected to hydrothermal reaction so that the carbohydrates are carbonized to be coated on the surface of aluminum powder particles, original solvents and deionized water are used for alternately washing the coated materials, and the vacuum drying is carried out to obtain the carbon coated lead powder composite materials. The lead carbon super batteries made of the carbon coated lead powder composite materials have the advantage that the charging and discharging cyclic service life and the weight-to-power ratio are respectively and obviously prolonged and improved through being compared with those of the existing lead acid storage batteries.

The invention discloses a negative plate of a lead acid super battery, a production method and a lead acid super battery assembled by the negative plate, solving the problem of short service life of the charge state of a magnifying power part of the traditional lead acid super battery. The negative plate comprises a negative plate grid and negative lead plaster, wherein capacitance carbon plasteris coated on the surface of the negative lead plaster, and expansion intermediate phase carbon microballoons are added to the negative lead plaster; and the capacitance carbon plaster comprises activated carbon loading lead oxide, stearic acid, acetylene black, and the like. In the invention, the negative plate is formed by the method that the materials of the negative lead plaster are coated onto the negative plate and after cured and formatted, the capacitance carbon plaster is coated onto the outer surface and cured; and a super capacitive negative plate is obtained by doping high-capacitance and high-conductivity expansion intermediate phase carbon microballoons into the negative lead plaster to match with active substances in the capacitance carbon plaster. The service life of the assembled lead acid super battery is prolonged by 3-5 times compared with that of the traditional lead acid super battery, and the power is improved by 5 times, thus the lead acid super battery can be applied to medium and low hybrid electric vehicles and low-configuration pure electric vehicles.

The invention provides a method for chemical doping of plumbum (Pb) on the surface of a cathode carbon material used for an ultrabattery. The method comprises two steps of carbon material surface modification and Pb doping. The carbon material surface modification includes that carbon material undergoes a vulcanization reaction and / or an oxidation reaction. The Pb doping includes that the carbon material is placed into a solution containing Pb <2+> to be treated, and a treating mode is at least one chosen from vacuum soaking, ultrasound oscillation and high-temperature backflow. The method is simple and convenient to operate, achieves deep, uniform and mass doping of Pb elements in a microcosmic area of the carbon material by means of strong affinity of S and O to Pb and C, restrains hydrogen evolution of the carbon material under an acid-stage system, improves the volume of the carbon material, and enables the level of the hydrogen evolution of the surface of the carbon material under the acid-stage system corresponds to be equal to that of the surface of Pb. The method is suitable for industrialization application.

The invention relates to the application of graphene carbon materials to the technical field of batteries or capacitive chemical energy storage, in particular to a 3D graphene carbon electrode, a preparation method and a full battery. Using graphite paper as raw material, carbon-containing conductive adhesive is coated on one side of the graphite paper, dried and cured to form an electrode material compounded with carbon-containing conductive adhesive and graphite paper; part of the other side of the graphite paper is grapheneized to form 3D graphene carbon electrodes. The invention prepares a high specific capacity carbon positive electrode and a full battery with the characteristics of a super battery; the raw material sources are wide, the cost is low, the preparation method is simple and environmentally friendly; the product performance is stable and controllable, and is suitable for industrial production.