405 results about "Nickel–hydrogen battery" patented technology

The present invention discloses a nickel-hydrogen battery charging equipment, which comprises a micro-processing unit and a charging unit. Wherein, the micro-processing unit is composed of a battery voltage sampling module and a charging control module. The charging control module controls the charging unit according to voltage information collected by the battery voltage sampling module. The charging unit is composed of a constant current control circuit, a constant voltage control circuit and a trickle control circuit connected in parallel, a charging circuit and a charging mode control circuit. The charging mode control circuit controls the constant current control circuit, the constant voltage control circuit and the tickle control circuit to select constant current, constant voltage and trickle charging mode according to a control signal of the charging control module. Based on the charging circuit, the nickel-hydrogen battery is charged. The present invention also discloses a nickel-hydrogen battery charging method and a terminal applying the charging equipment and the method above.

The invention relates to an energy flow controller for fuel battery electric motor car, and the controlling system is composed of pedal, entire controller ECU, fuel battery engine, nickel hydrogen battery package and driving system. The invention is to implement reasonable distribution of energy source between fuel battery and fuel storage battery and enhance and optimize power performance of the whole car. Its character: there is also an energy flow controller connected between the ECU and the driving system, where the energy flow controller is a module in the ECU, its input end is connected with the output end of a fuzzy logic controller (FLC), and its output end is connected with the input end of an electric motor controller in the driving system. It synthesizes advanced techniques in the fields of CAN field bus, fuzzy control, communication, etc.

The present invention discloses a low-temperature nickel-hydrogen battery, which comprises a positive electrode, a negative electrode and an electrolyte, wherein active materials of the positive electrode comprise nickel hydroxide, cobalt-coated spherical nickel hydroxide, and yttrium oxide, a weight ratio of the nickel hydroxide to the cobalt-coated spherical nickel hydroxide to the yttrium oxide is 100:5-15:1-3, a substrate of the positive electrode is foam nickel, and the edge of the foam nickel has a compaction white edge with a width of 2-3 mm. The present invention further discloses a preparation method for the low-temperature nickel-hydrogen battery. The low-temperature nickel-hydrogen battery can maintain high charging efficiency under a low temperature environment, such that electrolyte solidification inside the nickel-hydrogen battery under a low temperature environment can be avoided, and a use temperature range of the nickel-hydrogen battery is expanded. In addition, characteristics of simple preparation and low cost are provided.

The invention relates to a method for full-automatically preparing a positive plate of a nickel hydrogen battery, which comprises the processes of automatically discharging, automatically feeding and welding a nickel plate, prepressing, gluing, feeding powder, rolling, detecting thickness, softening, automatically welding a nickel wire, automatically rubberizing, automatically splitting, and automatically weighing. The whole process of manufacturing and processing the positive plate is full-automatic, so that the consistency of the positive plate, which is a key factor influencing the consistency of the battery, can be improved; and the method has the advantages of shortening the manufacturing time, saving labor cost, reducing the influence of personal factors, contributing to tracing theproblems of products, along with wide industrial application prospect.

The invention relates to a diaphragm for batteries, in particular to a novel nickel-hydrogen battery diaphragm. The novel nickel-hydrogen battery diaphragm comprises a diaphragm base fabric and sulfonic acid group. The sulfonic acid group is uniformly grafted on the surface of the diaphragm base fabric by sulfonation. The novel nickel-hydrogen battery diaphragm further comprises an acrylic acid monomer. The acrylic acid monomer is uniformly grafted on the surface of the diaphragm base fabric through a chemical grafting reaction. The diaphragm base fabric is prepared from polyolefin sheath-core type fiber or polypropylene fiber or polyolefin sheath-core type fiber and polypropylene fiber. The diaphragm base fabric is shaped by a wet process paper-making technology or a dry process carding technology and is reinforced by spunlace process. The novel nickel-hydrogen battery diaphragm disclosed by the invention has the characteristics of high chemical stability, strong oxidation resistance and high strength. The diaphragm has permanent hydrophilicity and liquid maintaining performance, improves ionic migration capacity and ion exchange capacity, effectively reduces internal resistance, improves large current discharging capacity and has excellent charge maintaining capacity.

The diaphragm is non-woven fabric of polypropylene backing material with hydrophilic group. Raw fibers are hot melted composite fiber with dual constituents in low melting point and superfine ultra short vinylon fiber; or the said composite fiber, superfine ultra short vinylon fiber, and superfine glass microfiber. Being in 60-90% in raw fibers, the said composite fiber includes inner core of polypropylene, and cortical layer of polyethylene. Through graft polymerization, the said hydrophilic group combines to non-woven fabric of polypropylene backing material. The fabricating method includes steps: hydrophilic preprocessing for raw fibers; making mesh; heat forming; hot rolling; grafting modification. Features are: simple method, permanent hydrophilic capability for keeping moisture, antioxidation, alkali proof, high tensile strength, and small discharge rate. The disclosed diaphragm is adaptive to technical requirement of diaphragm in nickel hydrogen battery.

The invention discloses a flexible photovoltaic integrated power supply system. The power supply system comprises a physical power supply, a chemical power supply and a power supply controller. Solar energy is converted into electric energy through the physical power supply. A flexible thin film solar battery module is adopted and comprises an amorphous silicon thin film solar battery module, a microcrystalline silicon thin film solar battery module, an amorphous silicon-germanium thin film solar battery module, and a laminated solar battery module consisting of the amorphous silicon thin film solar battery module, the microcrystalline silicon thin film solar battery module and the amorphous silicon-germanium thin film solar battery module, or a copper-indium-gallium-selenium thin film solar battery module. The chemical power supply adopts a storage battery component which comprises a nickel-cadmium battery module, a nickel-hydrogen battery module, a lithium ion battery module, an alkaline-manganese charging battery module or a lead-acid storage battery module. The power supply controller is a solar power supply single output controller with the model of V-ST10, is respectively connected with the physical power supply, the chemical power supply and the load, and is used for regulating and controlling the physical power supply and the chemical power supply. The flexible photovoltaic integrated power supply system provided by the invention has the advantages of good flexibility, light weight, high intensity, good environment tolerance and the like.

The invention discloses a manufacturing method of a nickel-hydrogen battery. The manufacturing method comprises a positive plate manufacturing process, a negative plate manufacturing process, a rolling process, a placement process, an electrolyte injection process and a seal process. A diaphragm is arranged between a positive plate and a negative plate. A turnup edge of the positive plate stretches out of the upper end of the diaphragm and a raised part of a negative plate stretches out of the lower end of the diaphragm so that the plates are rolled together to form a cell. The upper end of the cell is connected to a battery cap by a current collector disc. The nickel-hydrogen battery comprises the positive plate, the negative plate, the diaphragm sandwiched between the positive plate and the negative plate, the battery cap and a battery case. The turnup edge of the positive plate stretches out of the upper end of the diaphragm and is bent by pressing to reach to the upper end surface of the cell. The upper end of the cell is electrically connected to the battery cap by the current collector disc. The manufacturing method is convenient for operation and batch production. The nickel-hydrogen battery has high charging efficiency, good heavy current discharge performances and excellent dynamic performances.

A disk array device can carry out battery backup including a destage process of data by a battery mounted in a case body of the disk array device and can enhance instantaneous power failure durability to an instantaneous power failure. A logic box mounts a channel controlling unit, a disk controlling unit, a cache memory and a switch; and a hard disk box mounts a plurality of memory devices. A battery box mounts a nickel hydrogen battery for supplying a backup power source at the time of a power failure and is disposed at a lower portion of each case body including the logic box and the hard disk box. The nickel hydrogen battery of the battery box is cooled through natural convection of air created inside the case body by a fan for cooling each of the logic box and the hard disk box.

The invention discloses a method for preparing high purity nano cobalt hydroxide, belonging to the technical field of battery energy material preparation. Homogeneous phase precipitation method is adopted to synthesize cobalt hydroxide, including that: cobaltous sulphate aqueous solution, sodium hydroxide aqueous solution, cobalt ion chelating agent aqueous solution and aqueous solution of reagent A which are in certain concentration are respectively, sequentially and continuously added into a reactor to be stirred according to flow ratio of 1: 0.68-0.74: 0.048-0.054: 0.058-0.064, reaction is taken place, appropriate amount of additive aqueous solution is added, and ageing, solid-liquid separation, washing and drying are carried out, thus obtaining the high purity nano cobalt hydroxide product. The product not only has high purity, regular shape, small grain size and uniform distribution, but also has high specific area, higher bulk density and good liquidity, dispersity and workability, thus being beneficial to separate processing or uniformly coating cobalt hydroxide on the surface of nickel hydroxide particle by adopting chemical plating, so that combination property of nickel-hydrogen battery is improved.

The invention discloses a method for directly growing a carbon nanotube on a foamed nickel substrate so as to prepare battery electrodes. The method comprises the following steps: (1) performing chemical and ultrasonic cleaning by taking foamed nickel as a catalysis and substrate material for chemical vapor deposition reaction of the carbon nanotube; and (2) setting a CVD reaction device, directly performing the chemical vapor deposition growth of the carbon nanotube on the foamed nickel substrate in the CVD reaction device, the flow ratio between a hydrocarbon gas and a carrier gas is (10-40sccm):(100-400sccm) when the growth temperature is at 600-900DEG C, the growth pressure is at 1-760Torr, and the growth time lasts for 1-30min. The method has the advantages that the significant role in enhancing the performance of a battery device can be achieved, the specific surface area and the electrochemical activity of the CNT-foamed nickel substrate can be obviously improved, and the cycle life of the CNT-foamed nickel substrate nickel-hydrogen battery can be obviously prolonged.