15results about How to "Increase discharge voltage" patented technology

The invention belongs to the technical field of magnesium air battery electrode materials, and particularly relates to a magnesium air battery anode material Mg-Sr-Ge ternary alloy which comprises the following components in percentage by mass: 0.1-2.0 wt% of strontium (Sr), 0.1-2.0 wt% of germanium (Ge) and the balance of magnesium (Mg). The preparation process comprises the following steps: weighing a pure magnesium ingot, high-purity germanium and an Mg-20Sr alloy according to the required proportion, and then smelting by using a vacuum induction furnace under the protection of argon; after smelting is completed, the alloy is cooled to the room temperature along with the furnace, and as-cast alloy is formed and can be directly used for a battery anode. Compared with a commercially available AZ31 anode material, the Mg-Sr-Ge ternary alloy anode disclosed by the invention shows higher discharge voltage, specific capacity and specific energy. The alloy material is low in preparation cost and simple in smelting process, can effectively improve the discharge performance of the magnesium air battery, and has a wide application prospect.

The present invention provides an electronic cigarette lithium-ion battery, including a positive electrode sheet, a negative electrode sheet and a shell container; wherein the material of the positive electrode sheet is a mixed material of lithium manganate and sodium phosphate manganese ore; the material of the negative electrode sheet is at least one of graphite, hard carbon, soft carbon, silicon, silicon-carbon composite, tin and tin-containing composite; the shell container contains an electrolyte. The present invention uses the discharge oxidation state of sodium phosphate manganese ore as an additive for the positive electrode of lithium manganate, and mixes a certain proportion of lithium manganate and sodium phosphate manganese ore as the positive electrode of the battery. On the one hand, it can fully increase the discharge voltage of the electrode to meet most of the discharge capacity requirements of more than 3.3V, and on the other hand, it is suitable for large-diameter Na + Rapidly intercalated and deintercalated ion transport channels can provide a small radius of Li + It provides a faster transmission channel to meet large current discharge and solve the problem of extremely low voltage caused by instantaneous large current polarization.

The invention provides a high-performance carbon battery and a production process thereof. An electrolyte of the carbon battery comprises an aqueous solution of NH4Cl and ZnCl2 and an additive, and the additive is a water-soluble ammonium salt polymer. The battery provided by the invention has relatively high discharge voltage, less gassing and good stability.

The application discloses an aluminum alloy electrode material and a preparation method thereof. Raw materials of the aluminum alloy electrode material include magnesium, tin, indium and aluminum. The preparation method of the aluminum alloy electrode material comprises the following steps: melting the raw materials to obtain aluminum alloy ingots according to mass percentage; performing heat treatment on the aluminum alloy ingots; performing rolling on the aluminum alloy ingots after the heat treatment; and obtaining aluminum alloy electrode plates with a target thickness. The aluminum alloy electrode material adopts specific alloy components, alloy proportions and a processing process to alloy the metal aluminum, so that the aluminum alloy electrode material has higher discharge voltage and higher electrode utilization rate when used in an aluminum alloy battery, the occurrence of a side reaction is reduced, the discharge energy of a unit mass electrode is improved when the aluminum alloy electrode is used, and the aluminum alloy electrode plate has better processing consistency compared with the same type of aluminum alloy electrode plate.

The invention belongs to the field of lithium ion batteries, and particularly relates to application of a sulfur atom-containing lithium-rich polymer as a lithium ion battery positive electrode material. According to the organic lithium-rich polymer, a conjugated benzene ring derivative is taken as a monomer, bridging is carried out through sulfur atoms, and the sulfur-atom-containing organic lithium-rich polymer positive electrode material is synthesized in one step. The positive electrode material has certain air stability and is beneficial to large-scale production; molecular chains are expanded through polymerization, so that the solubility of the polymer in organic electrolyte is reduced, and the cycle performance of the battery is improved; lithium ions are embedded in the structure in advance through chemical reaction and can be matched with a graphite negative electrode, so that the safety is higher; and the material has relatively high discharge voltage (about 3.0 V), and is beneficial to development of a secondary battery with high energy density.

The invention discloses a chlorine-free compound electrolyte for improving the performance of a magnesium battery and a preparation method of the chlorine-free compound electrolyte, and belongs to the technical field of magnesium-air battery electrolytes. The chlorine-free compound electrolyte for improving the performance of the magnesium battery is a mixed solution of sodium sulfate, sodium carbonate, 2-methylimidazole and deionized water. Sodium sulfate is used for replacing sodium chloride for the first time to prevent chloride ions from accelerating magnesium corrosion, sodium carbonate reacts with a magnesium matrix to form a uniform thin magnesium carbonate layer, and 2-methylimidazole adsorbs the surface of positively charged magnesium through an electronegative large pi bond structure, nitrogen atoms and the like to compact a film layer. Through the synergistic effect of the three materials, loose and porous discharge products can be inhibited from being deposited on the surface of the anode, the utilization efficiency of the anode is greatly improved to 87%, and the discharge voltage is improved to-1.9 V. The discharge performance of the air battery is improved to the greatest extent by adjusting the ratio of the solvent to the solute; the prepared battery has the advantages of being environmentally friendly, convenient to operate, simple in preparation process and the like, and can be applied to remote electronic equipment.

The present invention discloses a high entropy layered oxide material, a preparation method, a positive electrode sheet, and a secondary battery. The general chemical formula of the material is: Na a K x Ni b Fe c Mn d Cu e Ti f M g O 2+β , where K is located in the sodium layer, Ni 、 Fe 、 Mn 、 Cu 、 Ti 、 M is located in the transition metal layer, where 0.7

This invention provides a Mg-Sr-In alloy anode material for magnesium-air batteries and its preparation method, relating to the field of anode material technology. The magnesium-Sr alloy anode material for magnesium-air batteries described in this invention has a chemical composition mainly of Sr, In, and Mg. By doping pure magnesium anodes with appropriate amounts of Sr and In elements for microalloying, the microstructure of the magnesium alloy is altered, enhancing the corrosion resistance of the magnesium-air battery anode, activating anode reaction kinetics, maintaining the anode activation area, suppressing the negative differential effect, and reducing self-corrosion hydrogen evolution. This allows for stable discharge while improving the battery's discharge voltage and anode efficiency, significantly extending the battery's lifespan. The Mg-Sr-In anode material of this invention has a simple preparation process, low cost, and is easy to promote and apply, making it suitable for high-power electrical equipment.

The invention relates to the technical field of lithium battery manufacturing, in particular to a composite active material, a preparation method and an obtained lithium-iron disulfide battery positive plate. The composite active material is of a core-shell structure of cobalt disulfide and iron disulfide, the core-shell structure is characterized in that the cobalt disulfide is coated with the iron disulfide, the particle size of the cobalt disulfide is 2-5 microns, and the particle size of the composite active material is 12-20 microns. According to the method, the characteristic that physical and chemical properties of cobalt disulfide and iron disulfide are similar is utilized, cobalt disulfide is added in the iron disulfide preparation process through a precipitation method, cobalt disulfide serves as a precursor for preparing iron disulfide, cobalt disulfide serves as the center and extends outwards to synthesize iron disulfide, and then sulfur removal treatment is conducted. A lithium-iron disulfide battery positive plate prepared from the composite active material is high in conductivity and low in self-discharge rate, and a battery assembled by the positive plate material is low in internal resistance and excellent in storage performance. And the composite active material also improves the discharge platform of the battery and the pulse discharge performance of the battery.

The invention provides a negative electrode material, a preparation method and a sodium ion battery. The negative electrode material provided by the invention comprises hard carbon, a carbon coating layer coating the hard carbon and closed pores, the closed pores are formed by pore openings formed by coating the carbon coating layer on the outer surface of the hard carbon, the pore diameter of the closed pores ranges from 0.1 nm to 3 nm, and the specific surface area A and the true density B of the negative electrode material meet the condition that A * B is less than 8, the specific surface area A of the negative electrode material is 0.5 m < 2 > / g-6m < 2 > / g, and the true density B of the negative electrode material is 0.5 g / m < 3 >-1.45 g / m < 3 >. A large number of closed pores of the negative electrode material can be used as sodium storage positions, namely, the negative electrode material has high closed pore volume, and the negative electrode material has high gram volume due to low true density and high closed pore volume, so that the energy density of the sodium ion battery is improved.

The utility model particularly relates to an electric purification and dust collection device which is arranged to be of a window frame structure and comprises a frame, an electric purification and dust collection device, a dust collection device and an electric purification and dust collection device, and the frame is arranged to be of a hollow structure defined by peripheral frame plates; the discharge electrode is arranged on the first side of the peripheral frame plate; the grounding electrode is arranged on the second side, opposite to the first side, of the peripheral frame plate, and an ionization area is formed at the hollow structure between the discharge electrode and the grounding electrode; and the dust collection layer is arranged on the peripheral frame plate and located in the ionization area, and the dust collection layer is arranged to collect dust in the ionization area. According to the electric purification and dust collection device, the discharge electrode and the grounding electrode are integrated on the frame of the electric purification and dust collection device, so that an ionization area can be formed in the frame, dust in the frame is absorbed by the dust collection layer under the condition that the dust is fully ionized, and the technical effects of lightness, thinness and high efficiency of the electric purification and dust collection device are achieved.

The invention discloses a preparation method of a Mg-Y-Nd-Gd-Zr anode material of a high-performance magnesium air battery. The anode material is prepared from the following components in percentage by mass: 1%-9% of Y, 0.1%-4% of Nd, 0.1%-4% of Gd, 0.1%-1% of Zr and the balance of magnesium and inevitable impurities. The preparation method comprises the following steps: 1, drying magnesium alloy powder; 2, ball-milling the magnesium alloy powder; 3, spark plasma sintering; and 4, extruding and deforming. Magnesium alloy powder is refined through ball milling, grains are refined by combining sintering and extrusion deformation, a large number of high-activity precipitated phases are generated, the fine grains are beneficial to improvement of the discharge stability of the material and increase of the anode utilization rate of the material, and the high-activity precipitated phases are beneficial to improvement of the discharge voltage of the material; the material has the advantages of high discharge voltage, high energy density, high power, stable discharge voltage, high anode utilization rate and the like, and is suitable for being used as a magnesium air battery anode material.

The invention discloses a lithium-carbon fluoride battery electrolyte containing a redox medium as well as a preparation method and application of the lithium-carbon fluoride battery electrolyte, and belongs to the technical field of lithium primary batteries. By adding 0.005-0.1 mol / L of redox medium into the electrolyte of the lithium-carbon fluoride battery, compared with the traditional solid-phase reaction, the redox medium in the electrolyte can participate in the reaction and promote the generation of LiF in the liquid phase, so that the discharge voltage platform is greatly improved, the voltage lag is delayed, and the discharge capacity of the lithium-carbon fluoride battery is also improved. In addition, the lithium-carbon fluoride battery electrolyte containing the oxidation-reduction medium also has the characteristic of being easy to prepare, and large-scale production can be realized. The technology not only improves the overall performance of the battery, but also enhances the operability and economical efficiency of the battery in practical application.

The application discloses a layered oxide sodium-ion battery cathode material with a P2 / O3 dual-phase symbiotic structure and a preparation method and application thereof. a Ni b Mn c Fe d Mg 0.37‑b Ti 0.63‑c‑d O2, wherein 0.7

A blank mask according to an embodiment includes: a substrate; and a conductive layer disposed on the substrate, in which the conductive layer includes a first layer and a second layer having different conductivity, and the conductivity of the conductive layer is 500 S / cm to 2000 S / cm.