111results about How to "Reduce heat production" patented technology

The invention specifically relates to a current collector and application thereof, and a pole piece and a battery using the same, belonging to the field of batteries. The current collector of the invention comprises an insulating layer and a conducting layer, wherein the insulating layer is used for bearing the conducting layer; the conducting layer is used for bearing an electrode active materiallayer; and the normal-temperature film resistance Rs of the conducting layer is no less than 0.016 omega / sq and no more than 420 omega / sq. The current collector provided by the invention can greatlyincrease the short-circuit resistance of the battery in cases of abnormal conditions, allows short-circuit current to be greatly reduced, so heat produced by short circuits is greatly lowered, and heat produced at sites where internal short circuits occur can be totally absorbed by the battery; and thus, the influence of short-circuit damage to the battery is limited to certain points, only pointcircuit break occurs, and the normal operation of the battery in a short period of time is not affected.

The invention relates to a high-power flexible packaged lithium ion battery and a processing process thereof. An individual battery cell comprises a negative plate, a positive plate, a first membrane and a second membrane, wherein the first membrane, the negative plate, the second membrane and the positive plate are stacked in sequence; the positive plate is arranged in an innermost layer and formed by winding. According to the lithium ion battery, a first positive island region and a second positive island region which are not coated with active substances are arranged in a certain distance on the two sides of a positive tab; during winding, the second positive island region and the first positive island region are used for correspondingly wrapping a negative tab and the rear surface of the negative tab respectively, so that the lithium separation when the positive active substances are over against the negative tab is avoided. According to the preparation method, the battery is hotly and coldly pressed before formation, and excess electrolyte in the battery is squeezed into an airbag, so that the hardness of the battery is improved, the layers of membranes, the positive plate and the negative plate are in relatively close contact with each other, the interface impedance and the internal resistance of the battery are reduced, and the power energy density of the lithium ion battery is increased.

The invention provides a composite lithium-ion battery cell with low internal resistance, and a preparation technology of the composite lithium-ion battery cell, aiming at overcoming the defects. The battery cell internally comprises at least two single winding cells which are respectively provided with a positive pole lug and a negative pole lug; the pole lugs with the same polarity of the single winding cells are welded to form a whole body in a way of ultrasonic welding, so that the composite battery cell can be formed; the pole lugs of a positive pole piece and a negative pole piece of each single winding cell are arranged in the middle. After the composite lithium-ion battery cell is adopted, the internal resistance of a battery is effectively reduced under the condition that the battery capacity is not changed, so that the multiplying performance of the battery is improved, and the safety of the battery is improved.

A high-temperature and aerobic composting method for solid wastes which adopts a vertical ventilation device relates to a high-temperature and aerobic composting method for the solid wastes. The composting method aims at solving the problems that in the aerobic fermentation process, the conventional bottom ventilation method causes obvious uneven fermentation at the upper part and the lower part of a stacking body in a fermentation device, thus quality stability and uniformity of the fermented product are affected. In the composting method, middle air distribution pipes are fixed in a fermentation tank arranged at the lower side of an inverted ventilating slot; both the bottom part and the middle part of the fermentation tank adopt intermittent ventilation type, the ventilation time is 5-30 minutes, intermittent time is 15-120 minutes and ventilation rate is 0.03-2m<3> / (min m<3> mixing materials). The composting method increases the contact area between air and materials; air direction forms a reverse rotational flow, which increases residence time of fresh air in the fermentation device, thus improving the mass transfer efficiency, and the operational cycle of a single fermentation is shortened by over 1 / 4.

The invention discloses a microcrystalline glass ceramic binding agent, a preparing method thereof, an SG grinding wheel and a preparing method thereof. The binding agent is prepared from, by weight percentage, 40% to 65% of SiO2, 6% to 20% of Al2O3, 5% to 18% of Na2O, 0.5% to 5% of CaO, 3% to 10% of K2O, 8% to 35% of B2O3, 0.5% to 2% of MgO and 2% to 6% of TiO2. The microcrystalline glass ceramic binding agent is formed by reasonably selecting the raw materials, the scientific ratio is adopted, the binding agent has the beneficial effects of being low in thermal expansion coefficient and crystallization temperature and high in strength accordingly, the microcrystalline glass ceramic binding agent is suitable for being used as a binding agent of the SG grinding wheel, the firing temperature of the SG grinding wheel is greatly reduced, and the firing time of the SG grinding wheel is greatly shortened; and meanwhile the work efficiency and the machining accuracy of the SG grinding wheel are improved, grinding heat is reduced, and the service life of the grinding wheel is prolonged.

The invention provides ketogenic nutrient meal replacement powder. The ketogenic nutrient meal replacement powder is prepared from the following components: medium chain triglyceride microcapsule powder, gamma-linolenic acid oil microcapsule powder, high oleic sunflower oil microcapsule powder, rice bran fatty alkanol microcapsule powder, oat fiber, soy protein isolate, rice protein, yeast protein, psyllium seed husk powder, a potato extract, an agaricus bisporus extract, a white kidney bean extract, erythritol, grape fruit powder, compound vitamins, compound minerals and xanthan gum. The formula contains high-content fat, contains dietary fiber, various vitamins and minerals, can increase satiety, control the decomposition and absorption of carbohydrates, avoid fat accumulation, and can effectively improve the unwell symptoms of a user when glucose energy supply is converted into ketone body energy to achieve nutrient balance, and can be used as a ketogenic diet for weight loss peopleand epilepsy patients.

A hydrofining method of aromatic solvent naphtha is characterized by that its makes the aromatic solvent naphtha which possesses heavy abnormal smell and dark colour and is richly produced in the course of producing petroleum resin by using pyrolytic oil undergo the two-stage hydrofining treatment to obtain the solvent naphtha meeting the product quality requirements for paint industry. This invented method is simple in process, its operation is easy to control, it does not produce polymerization reaction, and its whole hydrogenation process can be normally implemented.

The invention discloses a balance valve with the variable pilot ratio. A valve body is provided with a control oil port, and a control piston is provided with a first acting surface and a second acting surface which are located at the two ends. A valve sleeve is provided with a first containing cavity. The first containing cavity is close to the first acting surface. One end of a valve core abutsagainst the second acting surface. An end cap and the control piston are in sliding sealing connection. The control piston is provided with at least one annular boss, and the end surface of the side,close to the first containing cavity, of each annular boss is a first annular acting surface. The end cap is provided with at least one annular groove in sliding sealing fit with the corresponding annular boss and at least one oil passageway communicating with the corresponding annular groove. The end surface of the side, close to the first containing cavity, of each annular groove is a second annular acting surface. A second containing cavity is formed between each first annular acting surface and the corresponding second annular acting surface. The balance valve has the beneficial effects that the low pilot ratio can be adopted in a working condition requiring high system stability and the high pilot ratio can be adopted in a steady state working condition, so that the system energy consumption is lowered.

The invention relates to a citrate calcium sulfate skeleton replaceable material, relative compound, preparation and application, wherein it comprises: adding citrate into calcium sulphate dehydrate, or still adding metal crystallize agent, to mixed and arranged inside the vaporize kettle, to process high-temperature high-pressure reaction, to be obtained and dried. The invention can be used repair the skeleton, treat the osteoporosis, bone cancer, etc, with simple process, slow degrade speed, high strength, and low cost.

The invention relates to a low-smoke zero-halogen flame-retardant polyolefin oxygen barrier material with low heat release and high coking property, which comprises Levapren rubber and a ceramic master batch. The VA content of the Levapren rubber is greater than or equal to 50%, and at 100 DEG C, the mooney viscosity of the Levapren rubber is 20-30; based on the total weight of the ceramic masterbatch, the ceramic master batch comprises the following components in percentage by mass: 40-60% of ceramic powder, 40-60% of polyethylene resin, 0.1-0.3% of first antioxidant, 0.1-0.5% of polyethylene wax and 0.2-0.6% of silicone powder. The polyolefin oxygen barrier material disclosed in the invention has low heat release property, high coking property and excellent extrusion machinability.

The invention relates to an implantable cyanoacrylate medical adhesive and an application thereof. The medical adhesive comprises the following components in parts by mass: 60 to 80 parts of cyanoacrylate, 10 to 30 parts of a plasticizer, 0.3 to 5 parts of a polymerization inhibitor, 0 to 5 parts of a flexibilizer and 0 to 5 parts of a stabilizer. The addition amounts of the flexibilizer and the stabilizer are not 0 at the same time. Compared with the prior art, the medical adhesive has the controllable curing speed, low heat release during bonding, high bonding strength, capability of being injected into veins to cure and block blood vessels and relieve varicosity, soft cured film and capability of reducing foreign body sensation.

The invention discloses a high-safety composite positive plate, and comprises a lithium ion battery positive electrode. The upper side surface and the lower side surface of the lithium ion battery positive electrode are coated with at least one functional material layer; and the functional material layer comprises a high-thermal-conductivity inorganic nano material, a conductive agent, a lithium ion conductive material, a binder and a dispersing agent. The invention also discloses a lithium ion battery using the high-safety composite positive plate, and a preparation method of the high-safetycomposite positive plate. The invention discloses a high-safety composite positive plate and a preparation method and an applied lithium ion battery thereof. Starting from two angles of heat production and heat conduction, the concept of 'electricity / heat conduction (namely electricity and heat comprehensive conduction)' is introduced, 'less heat production and quick heat conduction' are realized,and heat accumulation caused by short circuit in the battery can be effectively inhibited, so thermal runaway is avoided, the safety of the high-energy-density lithium ion battery is further improved, and the lithium ion battery has important practical significance.

The invention discloses a phase transformation buoyancy engine cooled by a heat pipe. The phase transformation buoyancy engine is composed of a buoyancy generating unit and a temperature control unit.The buoyancy generating unit is composed of a hoop, a seal ring, a shell, an insulating material, a phase transformation material, a base and a watertight connector. The temperature control unit is composed of a heat-dissipating metal plate, the heat pipe, an electric heating wire, a direct current power supply and a switch. The phase transformation buoyancy engine is cooled efficiently by meansof the heat pipe, so that the cooling speed of a phase transformation material is improved, and a cooling process without energy consumption is achieved. In addition, the phase transformation buoyancyengine disclosed by the invention also has the advantages of being good in insulating effect, simple and stable in structure, light in weight and the like.

Medicinal massage in traditional Chinese medicine is called ointment massage in ancient time and is first seen in Synopsis of Golden Chamber. Ointment massage is a comprehensive therapy method with traditional Chinese medicine ointment as massage medium, can be applied to exterior and interior diseases, tri-jiao diseases, viscera diseases and main and collateral channel diseases, and has a better treatment effect than massage alone or external application of medicine alone, and thus popular for thousands of years. Based on the principles of warming by rubbing and drilling wood to make fire, an ointment massage device is composed of a machine shell, a motor, a drill bit-shaped semicircular friction head, a fixing sleeve, a salve mull, an ointment massage switch and a cutaneous penetration switch. The shape of a protrusion on the friction head is improved, the friction head is driven by the motor to rotate at a high speed, friction is generated between the friction head and the salve mull covering skin so as to generate high-intensity squeezing impact force and high temperature, ointment massage and friction cutaneous penetration are conducted under combined action, and then the overall treatment effect of ointment massage is improved remarkably; besides, the defects of existing manual ointment massage methods that labor intensity is high and hands get hurt easily are overcome.

The invention discloses a nano-diamond-containing lithium ion battery pole piece and a preparation method thereof; the preparation method comprises the following steps of preparing conductive slurry from the nano-diamond and a conductive agent; adding the conductive slurry into an adhesive glue solution to be uniformly dispersed to form conductive glue solution; enabling active substances to be added into the conductive glue solution to be dispersed and homogenized to obtain slurry, wherein the slurry is coated on the surface of a current collector to obtain the lithium ion battery pole piececontaining the nano-diamond. The preparation method of the nano-diamond-containing lithium ion battery pole piece is simple in process, and the obtained pole piece is high in conductivity, low in internal resistance, low in heat generation amount, stable in structure and capable of improving the overall performance of the lithium ion battery.

The invention provides a spiral distributed multi-hole end face rotary sealing ring used on a vehicle and belongs to the technical field of sealing engineering of automobile transmission devices. 10-20 spiral areas are evenly distributed on the end face of the rotary sealing ring in the circumferential direction. Each spiral area is formed by extending of an inner circle of the sealing ring towards an outer circle of the sealing ring. Micropores are evenly distributed in each spiral area. Ratio of the superficial area of the micropores to the area of the end face of the sealing ring is 0.15-0.25. According to the spiral distributed multi-hole end face rotary sealing ring used on the vehicle, a structural design that the micropores are formed in the end face of the rotary sealing ring is adopted, the spiral distributed micropores can produce hydrodynamic pressure to achieve non-contact lubrication under the working condition of high speed and high pressure. Meanwhile, the multiple micropores can effectively reduce friction torque, quantity of heat production and frictional wear. An oil film is enabled to be in a lubrication state due to an oil fixing function of the multiple micropores under the low-speed working condition, and then using performance of the sealing ring is improved, and the service life of the sealing ring is prolonged.

A hydrofining method of aromatic solvent naphtha is characterized by that its makes the aromatic solvent naphtha which possesses heavy abnormal smell and dark colour and is richly produced in the course of producing petroleum resin by using pyrolytic oil undergo the two-stage hydrofining treatment to obtain the solvent naphtha meeting the product quality requirements for paint industry. This invented method is simple in process, its operation is easy to control, it does not produce polymerization reaction, and its whole hydrogenation process can be normally implemented.

The invention discloses a kelp beverage and a production method thereof. The kelp beverage and the production method thereof are characterized in that kelp, pineapples and jasmine flowers are used as raw materials and processed into a kelp solution, corn, Chinese wolfberries, haws and a siraitia grosvenorii extracting solution are matched, fried bean powder and fresh ginger powder are added, and then the kelp beverage is made through the technologies of mixing, homogenizing, pouring in bottles and sterilizing; besides, the beverage with characteristics is further processed into a solid beverage through concentrating and drying technologies. The product formula and the dosage established by the kelp beverage and the production method thereof disclosed by the invention are scientific; the kelp beverage conforms to health-care requirements for flavor and the nutrition of products, is easy to process and reasonable in cost, and meets ideal requirements; the problems that the fishy smell of the kelp is strong, kelp fibers are hard, and the nutrition of the kelp when people only eat the kelp is unbalanced are solved; the beverage which is rich in nutrition, convenient to eat and good in mouth feel is developed.

The invention provides a positive pole piece and a battery, and the positive pole piece is provided with a third coating, a first positive coating and a second positive coating which are sequentiallylaminated on a positive current collector. When the battery is internally short-circuited, the first positive electrode coating can increase the contact impedance of the positive electrode piece and reduce the short-circuit current in the battery, so that the heat production heat in the battery is reduced, and the risk of safety out-of-control of the battery is reduced.

The invention discloses a power battery. The power battery is provided with a positive electrode and a negative electrode and is of a cuboid structure, the relation of length, width and height of thepower battery is in a way that the length is 0.9-1.2 times of the width, the length is 6 times of the height, the power battery also comprises a positive tab and a negative tab, the positive tab is connected with the positive electrode, the negative tab is connected with the negative electrode, the positive tab and the negative tab are respectively arranged on two opposite surfaces, with minimum areas, of the power battery, and the positive tab and the negative tab both are rectangular sheet-shaped structures with a length-width ratio being 2:1. The invention also discloses a battery thermal management system of the power battery. By optimizing a cooling structure of the battery and performing thermal management on the power battery, the cooling performance of the power battery is improved, the heat generation quantity of the power battery is reduced, and the technical problems of insufficient cooling performance of the lithium ion battery and high heat generation quantity in the priorart are solved.

In order to overcome the problem of insufficient high-temperature circulation and high-temperature storage performance of the battery caused by dissolution of manganese ions in the existing manganese-based positive electrode material battery, the invention provides a secondary battery, the secondary battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode material layer containing a positive electrode active material, the positive electrode active material comprises a manganese-based material, and the negative electrode comprises a negative electrode material layer containing a negative electrode active material. The non-aqueous electrolyte comprises a solvent, an electrolyte salt and an additive, and the additive comprises a compound represented by a structural formula 1. The secondary battery satisfies the following conditions: 0.05 < = 100 * W * u / (q * s) < = 5, 2.0 g / Ah < = W < = 4.5 g / Ah, 0.05% < = u < = 3.5%, 5% < = q < = 65%, and 10 mg / cm < 2 > < = s < = 30 mg / cm < 2 >. The secondary battery provided by the invention has a relatively high capacity retention ratio in the circulation and high-temperature storage processes, and has relatively good circulation performance and storage performance.

The invention provides a positive plate, a preparation method thereof and a battery. The preparation method of the positive plate comprises the steps that a current collector is coated with paste which contains a positive active material, a conductive agent and a binder, and an initial positive plate is obtained after drying; a polymerizable substance, an additive and a low-boiling-point solvent are mixed uniformly and prepared into a coating solution, then the coating solution is spread on the surface of the initial positive plate, the low-boiling-point solvent is removed through drying, anda coating is formed; and the initial positive plate stands in the air for a period of time and then is further heated and roasted to remove the additive in the coating, so that a porous structure is formed in the coating, and preparation of the positive plate is completed. Through the positive plate and the preparation method thereof, the safety of the battery and storage of generated gases can beeffectively improved, and meanwhile the battery has good rate capability and circulation performance.

The invention relates to the technical field of surface mine machinery, in particular to a full hydraulic driving drilling machine hydraulic load-sensitive system. The speed of the actuating elementsof the sensing system can realize stepless regulation, and double speed switching can be carried out on the travelling speed to meet various working demands of a drilling machine. The full hydraulic driving drilling machine hydraulic load-sensitive system comprises a hydraulic oil tank, a load-sensitive pump, a load-sensitive valve, a travelling double-speed switching electromagnetic valve, a lefttravelling motor and a right travelling motor; the inlet of the load-sensitive pump is connected with the hydraulic oil tank; the outlet of the load-sensitive pump is connected with the inlet of theload-sensitive valve; the first-path outlet of the load-sensitive valve is connected with the left travelling motor; the second-path outlet of the load-sensitive valve is connected with the right travelling motor; the left travelling motor and the right travelling motor are used for driving the drilling machine to travel; and the travelling double-speed switching electromagnetic valve is connectedwith the displacement control port of the left travelling motor and the displacement control port of the right travelling motor.

The invention relates to a water supply rush-repair illuminating lamp comprising a lamp post and a lamp arranged at the upper end of the lamp post, wherein the lamp post is in an elevating structure convenient for height regulation, the lamp is a light-emitting diode lamp, and the lower end of the lamp post is provided with a base. The lamp post comprises an upper post body, a lower pipe body and a pin shaft, wherein the upper part of the upper post body is bent to a circular-arc shape, the lower end of the upper post body is provided with a first pin hole, a plurality of groups of second pin holes matched and communicated with the pin shaft are uniformly distributed in the height direction of the lower pipe body, the lower end of the upper post body is inserted to the lower pipe body, and the lower pipe body and the upper post body are connected through the pin shaft passing through one second pin hole, the first pin hole and the other second pin hole; the light-emitting diode lamp is detachably and movably connected with the upper end of the upper post body; and the base is arranged at the lower end of the lower pipe body. When the base is in a cross shape, the lower end of the lower pipe body is fixedly connected with the center of the base. When the base is in an inversed U shape, the lower part of the lower pipe body is fixedly connected with the upper part of the base, and the lower end of the base is in a sharp tip shape. The lamp has the advantage of convenient and safe use. In addition, the lamp also effectively ensures the construction progress, improves the working efficiency and saves the energy sources after being adopted.

The invention provides a gradient utilization device of a line focusing concentrating photovoltaic-photothermal full spectrum. Compared with the traditional concentrating photovoltaic technology, the device has the advantages that an upper layer collecting lens is provided, as only sunlight within an operating wavelength range of a concentrating photovoltaic battery but not all sunlight is subjected to photovoltaic utilization, the heat yield of the photovoltaic battery is reduced, and meanwhile the photoelectric conversion efficiency of the photovoltaic battery is enhanced; through medium temperature photothermal utilization, the photovoltaic-photothermal utilization grade is enhanced, so that the solar radiation utilization ratio is improved, full spectrum utilization of solar energy is realized, and irreversible loss during solar utilization is reduced.

The invention discloses an electrode of an electrochemical energy storage device. The electrode comprises a current collector and a coating layer, wherein a functional layer is arranged on the surface layer of the coating layer, and organic particles and inorganic particles are contained in the functional layer; the organic particles can stably exist in an electrolyte, and the melting temperature T is greater than or equal to 60 DEG C and smaller than or equal to 600 DEG C; and the thermal failure temperature T1 of the inorganic particles is greater than or equal to 200 DEG C. When the temperature of a cell is out of control (greater than or equal to 60 DEG C), the organic particles in the functional layer are melted, and an ion transmission passage between an anode and a cathode is blocked (by controlling ionic conductance), so that the discharge capacity of the cell is weakened or lost, the quantity of heat production is reduced, and the safety performance of the cell is improved; moreover, due to the existence of the inorganic particles with high heat stability, the functional layer still has a function of blocking direct contact between the anode and the cathode (by controlling electron conductance) even if the organic particles in the functional are dissolved, and thus the safety of the cell is improved.

The invention relates to a temperature control method and system of a set top box. According to the method, the temperature inside the set top box can be monitored in real time; if the temperature inside the set top box is higher than a preset upper limit, high-definition video output of the set top box is switched to standard-definition video output; when the temperature inside the set top box is lower than a preset lower limit, the set top box is switched back to the high-definition video output. By means of the temperature control method and system of the set top box, the work frequency of a main chip and other elements is largely reduced, the heat generated by the set top box is largely reduced, the temperature inside the set top box is effectively lowered, and high-definition video output is switched to again after the temperature is lowered. Thus, the user is not affected when watching videos, the service life and the reliability of the set top box are guaranteed, the fault probability of the set top box is reduced, and the use and performance of the set top box are guaranteed.

The invention discloses a dual-state logic transmission and a gear shifting process control method thereof. The dual-state logic transmission is characterized by comprising four forward gear planet rows and a reverse gear planet row, each planet row comprises two clutches, when a single gear shifting oil pressure is actuated, one clutch is disengaged, the other clutch is engaged to form a dual-state logic structure, the power density of the transmission can be improved, and the transmission hydraulic system structure is simplified. The gear shifting process of the double-state logic transmission is divided into gear shifting under single-oil-pressure actuation and gear shifting under combined-oil-pressure actuation, the relation between the torque capacity and the oil pressure of the clutch is analyzed, the gear shifting time is used as a constraint condition, the gear shifting impact degree and the sliding friction work serve as evaluation indexes, a boosting curve under single-oil-pressure actuation and a depressurization curve under single-oil-pressure actuation are optimized, and oil pressure curve group under a combined oil pressure actuation is determined through the combination of the boosting curve and the depressurization curve, so that the gear shifting impact degree can be obviously reduced, the clutch sliding friction work is reduced, and the whole vehicle gear shifting quality is improved.

An electronic device including a coil, a power transmission circuit electrically connected with the coil, a detection circuit, and a control circuit. The control circuit of the electronic device configured to wirelessly output a first signal for identifying an access of a foreign object by first period intervals through the coil using the power transmission circuit, identify a change of the first signal using the detection circuit, wirelessly output the first signal by the first period intervals in response to a detection value of the changed first signal being less than or equal to a first threshold value, and wirelessly output the first signal by a second period intervals longer than the first period intervals in response to the detection value of the changed first signal exceeding the first threshold value.