946results about How to "High density" patented technology

The embodiment of the invention discloses an in-memory computing circuit based on a magnetic cache, and the circuit comprises at least one magnetic cache unit, at least one in-memory computing unit, and a timer. The magnetic cache unit in the at least one magnetic cache unit is used for caching data output by the corresponding in-memory computing unit as to-be-processed data within the corresponding data retention time; the timer is used for respectively setting data retention time for the at least one magnetic cache unit; and the in-memory computing unit in the at least one in-memory computing unit is used for extracting the data to be processed from the corresponding magnetic cache unit for calculation and outputting the computed data to other magnetic cache units. According to the embodiment of the invention, the invention achieves the flexible adjustment of the data retention time of the magnetic cache unit in various in-memory calculation scenes, and achieves the provision of a high-capacity cache for the data needed by in-memory computing under the lower power consumption.

The invention relates to an anti-ant large-core-number fiber ribbon cable comprising a cable core and an outer sheath. The cable core includes loose tubes; and fiber ribbons are sleeved inside the loose tubes. The outer sheath is an outer nylon sheath; and a non-metallic reinforcement layer is arranged between the outer sheath and the cable core. According to the anti-ant large-core-number fiber ribbon cable provided by the invention, with the outer nylon sheath, ants can not bite the sheath, so that the damages on the optical cable by ant biting in a pipe at an area with a serious anti problem are prevented, the normal state of the cable is ensured, and the application region of the cable is extended. The cable based on a simple and reasonable structure has advantages of small cable diameter, high fiber density, large fiber capacity, and low duty ratio and can be laid in a pipe conveniently; and the bending performance is good. During branched connection, 4 to 24 fibers can be melted once, so that the construction time is saved and the manpower cost is lowered, and the construction efficiency is improved. On the basis of the full drying type dielectric structure, branched connection is realized conveniently and usage becomes convenient.

The invention provides a preparation method of an ADC foaming agent for improving foaming pore density, which comprises the following steps: step 1, mixing a modified inorganic nucleating agent with water according to a predetermined mass ratio, adding a dispersing agent, and uniformly mixing to prepare uniform and stable suspension slurry to prevent agglomeration of the nucleating agent; 2, when the conversion rate of the biurea reaches 80%-85%, adding the suspension slurry, so that the inorganic nucleating agent is uniformly attached to the surface of the ADC crystal; and 3, continuing the oxidation reaction until the biurea conversion rate reaches 92% or above, and then washing, centrifuging and drying to obtain the ADC foaming agent. The ADC foaming agent for improving the foaming pore density is prepared by the method. The inorganic nucleating agent is added in the stage of preparing the ADC foaming agent, and compared with the inorganic nucleating agent added in the subsequent foam material preparation process, the density of foaming pores can be remarkably improved.

The invention discloses a forming method of a flash memory unit. The forming method comprises the following steps: providing a semiconductor substrate; forming a tunneling oxide layer on the semiconductor substrate; forming nanocrystalline silicon particles on the tunneling oxide layer; forming an isolation insulating layer on the tunneling oxide layer and the nanocrystalline silicon particles; and forming a control grid on the isolation insulating layer, wherein the step of forming the nanocrystalline silicon particles on the tunneling oxide layer comprises: forming an amorphous silicon layer on the tunneling oxide layer; and performing repeated seed crystal particle forming processes on the amorphous silicon layer, wherein surface annealing treatment is performed between two adjacent seed crystal particle forming processes, and an annealing process is performed after the last seed crystal particle forming process. The flash memory unit can be used for storing a large quantity of electrons, and has high performance.

The invention belongs to the technical field of ceramic materials, and particularly discloses whisker toughened zirconium oxide-aluminum oxide composite ceramic and an additive manufacturing method thereof, the composite ceramic comprises the following components by mass: 94 parts of zirconium oxide toughened aluminum oxide ceramic and 5 parts of silicon carbide whisker; the zirconium oxide toughened aluminum oxide ceramic is prepared from the following components in parts by mass: 76 parts of aluminum oxide and 24 parts of zirconium oxide, and 3mol% of yttrium oxide is added into the zirconium oxide. According to the whisker toughened zirconium oxide-aluminum oxide composite ceramic and the additive manufacturing method thereof, the preparation method has unique design of components and process, and the preparation of a high-density and high-performance ceramic-based composite material part based on a fused deposition modeling technology is successfully realized. Further, the prepared silicon carbide whisker toughened zirconium oxide-aluminum oxide-based composite ceramic has relatively high density and excellent obdurability.

The invention discloses a matrix type temperature detection system and method based on temperature-sensitive diodes, the problems of complex wiring and large temperature drift of a traditional multi-node temperature measurement system are solved through M * N matrix layout, row and column time-sharing gating and constant current driving technologies, the system adopts an independent column constant current source to ensure the measurement consistency, and a high-precision ADC and a dynamic calibration algorithm are combined, so that the measurement accuracy is improved. And the precision of + / -0.2 DEG C is realized within the range of 50-150 DEG C. The method is particularly suitable for high-density temperature measurement scenes such as battery thermal management, electronic equipment overheating monitoring and the like.

The invention provides a PQC and SM2 / 9 cooperative operation cryptographic chip and method based on an RISC-V architecture, and belongs to the technical field of cryptographic security. The chip comprises an RISC-V core and a configurable password collaborative operation unit, wherein the configurable password collaborative operation unit comprises a collaborative control state machine and a unified operation unit capable of being dynamically reconfigured. The method comprises the following steps: receiving and decoding a single cooperative operation instruction from an RISC-V core through a cooperative control state machine, and obtaining operation data feature information; the data length and the security level identification are extracted, and the optimal collaborative operation process is selected in a self-adaptive mode through comparison with a preset threshold value; and finally, dynamically configuring and scheduling a unified operation unit according to the selected process, and completing cooperative operation of the post-quantum cryptography algorithm and the SM2 / SM9 algorithm in an atomization mode. According to the method, deep fusion and intelligent scheduling of the two algorithms are realized on the hardware level, and the efficiency, the resource utilization rate and the safety of cooperative operation are improved.

The invention discloses an enhanced generation query method and system based on multi-granularity retrieval and reinforcement learning strategies. According to the method, semantic analysis is carried out on an original query by utilizing a large language model, the original query is decomposed into a plurality of sub-problems, and each sub-problem generates a query vector; in the multi-granularity vector knowledge base, respectively executing vector similarity retrieval on the query vector of each sub-problem to obtain a related document fragment vector of each sub-problem under each granularity, and further generating a multi-granularity vector set of each sub-problem; weighting the multi-granularity vector set of each sub-problem to obtain a comprehensive context information block, determining the weight of the multi-granularity vector set of each sub-problem through a multi-arm reinforcement learning strategy, and inputting the comprehensive context information block into a large language model to output a query result. According to the method, the retrieval accuracy is improved through semantic decomposition and multi-granularity knowledge collaborative retrieval, results are intelligently integrated through a self-learning mechanism, and lightweight self-adaptive optimization is achieved.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The application provides a ceria / yttria composite stabilized zirconia grinding medium and a preparation method. The method comprises the following steps: step one, mixing zirconia, ceria, yttria and kaolin, and then adding an appropriate amount of dispersant and water to obtain a slurry; step two, performing centrifugal spray drying on the slurry to obtain ceria / yttria composite stabilized zirconia powder; step three, adding the ceria / yttria composite stabilized zirconia powder into a binder, and then rolling to form a green body of spherical grinding medium; and step four, sintering and polishing the green body of spherical grinding medium to obtain the ceria / yttria composite stabilized zirconia grinding medium. The method can obtain low particle size and high specific surface area through high-temperature ball milling, and can also promote the solid solution of the stabilizer into the zirconia crystal lattice through heat treatment, so as to improve sintering activity, reduce sintering temperature and reduce production cost.

This invention relates to a method, apparatus, electronic device, and storage medium for intelligent agent memory management. The method includes: acquiring interaction content between the intelligent agent and a user; performing semantic segmentation and metadata extraction to generate memory fragments; storing the memory fragments in a multi-level directory structure of a local file system, without deleting memory fragments already stored in the multi-level directory structure; constructing a time index, keyword index, semantic index, and association index for the memory fragments; and, in response to a retrieval request from the intelligent agent or user, retrieving memory fragments matching the retrieval request from the time index, keyword index, semantic index, and association index respectively to obtain a candidate memory set, performing fusion and sorting to obtain sorted memory data. This invention improves the efficiency of intelligent agents in accumulating and reusing knowledge and experience, and also enhances privacy protection and long-term memory reliability.

This invention discloses a high-density inclined rail storage equipment, relating to the field of automated loading and unloading devices. The main structure includes shelves, a storage machine, a picking machine, and pallet trolleys. The shelves include uprights, horizontal supports, and guide rails. Multiple horizontal supports are arranged from top to bottom between the uprights, and guide rails are positioned above the horizontal supports, inclined downwards from the storage end to the picking end of the shelf. Pallet trolleys are mounted on the shelves, storage machines, and picking machines. Inclined guide rails replace the rollers of gravity-flow shelves. The wheels of the pallet trolley cooperate with the guide rails, and under the action of gravity, the pallet trolley moves downhill along the guide rails, sliding from the storage end to the picking end. A storage machine is installed at the storage end, and a picking machine is installed at the picking end to store or retrieve goods. This achieves high-density cold storage and the first-in, first-out (FIFO) principle, reducing the cost of automated cold storage.

This application provides a vertical heat recovery coke oven waste heat exchange unit, waste heat utilization system, and method, using supercritical carbon dioxide as the heat exchange medium. The unit includes a main compressor, a regenerator assembly, a high-pressure turbine, a low-pressure turbine, a precooler, and a heat exchanger. The heat exchanger internally houses a high-temperature superheater, a high-temperature reheater, a low-temperature superheater, a low-temperature reheater, an air-cooled wall, and an economizer. The main compressor outlet is connected to the cold-side inlet of the regenerator assembly, and the cold-side outlet of the regenerator assembly is connected to the working fluid inlet of the heat exchanger. The working fluid flows sequentially through the economizer, the air-cooled wall, the low-temperature superheater, and the high-temperature superheater before entering the inlet of the high-pressure turbine. The high-pressure turbine outlet is connected to the inlet of the low-temperature reheater, the low-temperature reheater outlet is connected to the inlet of the high-temperature reheater, and the high-temperature reheater outlet is connected to the inlet of the low-pressure turbine. The low-pressure turbine outlet is sequentially connected to the hot side of the regenerator assembly, the precooler, and the main compressor inlet.

The present application relates to the field of high-speed spraying technology, in particular to a supersonic flame spraying process for steam turbine blades. The present application overcomes the problems of insufficient coating bonding strength and poor corrosion resistance of the supersonic flame spraying. The present application uses nickel-coated alumina composite sand for sandblasting pretreatment of the blades to achieve micro-implantation of active nickel; adjusts the ratio of NiCr and Cr3C2-NiCr powders by using double powder feeders to build a gradient structure coating with continuous component change; uses a modified sealing agent containing nano-alumina for vacuum impregnation sealing; and finally obtains finished blades through graded vacuum diffusion annealing. Through surface nickel implantation, gradient structure design and diffusion annealing, the present application realizes metallurgical bonding and thermal stress matching between the coating and the substrate, greatly improving the bonding strength; at the same time, the in-situ ceramicization reaction of the sealing agent eliminates micro-pores, significantly enhancing the corrosion resistance of the coating.

The application provides an inverse-conducting insulated gate bipolar transistor and a preparation method thereof, and belongs to the technical field of power semiconductor devices, and comprises: a first groove is a gate groove, a second groove is an emitter groove, and a third groove is an ineffective gate groove; in the lateral direction parallel to the cell surface, the first groove, the second groove and the third groove are sequentially and spacedly arranged, and the first groove and the second groove are connected through a fourth groove, and the fourth groove is a gate groove; in the longitudinal direction, the second groove is located between two adjacent fourth grooves. The beneficial effects are as follows: the gate groove and the ineffective gate groove are connected through the lateral gate groove, the forward conduction voltage drop and the conduction loss of the device are reduced; the current channel is increased, the current distribution is more uniform, the heat loss is reduced, the reliability and the power density of the device are improved; the emitter groove is used for repeatedly arranging the polysilicon gate and the metal gate in the lateral and longitudinal directions, the regularly arranged diodes and Schottky diodes are formed, and the reverse diode current distribution is more uniform.

The invention belongs to the field of monatomic materials, and particularly relates to a carbon material rich in nitrogen and monatomic zinc and application of the carbon material in catalytic activation of carbon dioxide, the content of nitrogen in the carbon material is 16.1 wt%-21.6 wt%, the monatomic zinc is distributed in the carbon material in a monatomic state, and the content of the monatomic zinc in the carbon material is 10.3 wt%-18.7 wt%. The high zinc loading capacity and nitrogen content can increase the catalytic active site density, optimize the electronic structure, and significantly improve the activity of the carbon material rich in nitrogen and monatomic zinc in catalyzing the activation of carbon dioxide.

The application relates to the field of wastewater treatment catalysis, and discloses a Fe-Cu-Mn ternary hydrotalcite-like catalyst and a preparation method thereof, which comprises iron, copper and manganese; the iron, copper and manganese are distributed in the layer plate metal central site in an atomic dispersion mode; the layer plate oxygen octahedron is in a non-symmetrical stretching distortion state; a 3.2-4.8 degree deviation is generated in the manganese oxygen copper bond angle in the layer plate; the lattice parameter a of the layer plate 110 crystal face direction is 0.305-0.312 nm; the molar ratio of copper to manganese is 1:2-1:5; and the molar sum of copper and manganese to the molar ratio of iron is 2:1-4:1. According to the application, the lattice non-symmetrical distortion induces the space overlap of the auxiliary metal and the iron active center orbit, an electron transfer path is constructed, the shielding effect of the hydroxyl ion on the iron active site under the alkaline environment is eliminated, the catalytic site activity is maintained, and stable and efficient catalytic treatment under wide pH working conditions is realized.

The application discloses a wet oxidation catalyst, which comprises the following raw materials in percentage by weight: 0.1-2% noble metal, 1-10% graphene-based material, and the rest is a carrier, wherein the carrier is modified titanium dioxide, specifically, a rare earth-transition metal-oxygen vacancy-mesoporous three-dimensional gradient titanium dioxide carrier. The application aims at solving the technical problem of poor stability of the catalyst.

This invention relates to the field of die-casting mold technology and discloses a die-casting mold for aluminum alloy forming, comprising a moving mold and a fixed mold, and further comprising: a pre-vacuuming mechanism, fixedly installed inside the fixed mold, the pre-vacuuming mechanism including a sealing element and a pre-vacuuming channel communicating with the sealing element, and a slot corresponding to the sealing element on the moving mold; a vacuuming mechanism, including a fixed mold vacuuming component fixed on the fixed mold and a moving mold vacuuming component fixed on the moving mold; and a feeding assembly, fixedly installed on the side of the fixed mold away from the moving mold. This die-casting mold for aluminum alloy forming, by setting the pre-vacuuming mechanism and the vacuuming mechanism, initiates pre-vacuuming during the mold closing process, utilizing the dynamic stage of the gradually decreasing cavity volume to expel most of the gas in advance; a second vacuuming is performed after mold closing to further extract residual gas. The synergistic effect of the two vacuuming processes effectively reduces the initial gas content in the cavity.

The application belongs to the field of smart fibers and flexible electronics, and relates to an integrated circuit fiber and a preparation method thereof. The fiber contains electronic components integrated in a single fiber, and the electronic components are composed of multiple functional layers serving as components of the fiber and extending along the axial direction of the fiber. The integrated circuit fiber includes two types of integration schemes: one is a two-dimensional grid structure of multiple electronic components arranged radially side by side, and the electronic components can be electrically interconnected or isolated; the other is a radial stacking structure of a single electronic component, which can be adapted to five types of functional units, including electroluminescence, resistance-capacitance processing, capacitance sensing, transistors and organic electrochemical diodes. The preparation method comprises the following steps: a multi-channel microfluidic chip is used, multiple spinning solutions are injected into different channels, the spinning solutions in some channels are periodically turned on and off, the flow rates of the channels are independently controlled, the solutions are combined to form a multi-layer laminar flow structure, and the product is obtained through solidification in a coagulation bath, cleaning and drying. The application realizes high-density and high-stability functional integration in a single fiber.

The utility model belongs to the technical field of automobile part casting molds, and provides an integrated semi-solid magnesium alloy high-pressure casting mold for a new energy automobile, which comprises a movable mold assembly, a fixed mold assembly, a sliding block mechanism, a sealing assembly, an exhaust assembly and a pouring system, the sealing assembly is arranged between the movable mold assembly and the fixed mold assembly, a sealing cavity is formed between the movable mold assembly and the fixed mold assembly, a product cavity is further formed between the movable mold assembly and the fixed mold assembly, and the product cavity comprises three cavities used for forming a first main body part, a second main body part and a third main body part respectively; the sliding block mechanism is arranged on the movable mold assembly; the exhaust assembly comprises an exhaust part; the pouring system comprises a pouring gate. Compared with the prior art, the pouring gates are asymmetrically distributed along the product cavity, semi-solid magnesium alloy slurry can be guided to be filled in a stable laminar flow state, air entrapment, turbulent flow and impact are reduced, the defects of cold shut and shrinkage porosity of products are reduced, and the forming precision and mechanical property of the integrated vehicle-mounted decoration plate are improved.

Provided is a tobacco sheet for a non-combustion heating flavor inhaler, the tobacco sheet including a fibrous material.

The application belongs to the technical field of medicine, and particularly relates to a method for embedding micro-organoids or cells with agarose. The method for embedding micro-organoids or cells with agarose comprises the following steps: 1) fixing micro-organoids or cells with a fixing solution; 2) washing the fixed organoids or cells, removing supernatant after centrifugation, and obtaining organoid or cell precipitate; 3) pre-embedding organoids or cells with agarose; 4) taking out the agarose pre-embedded organoids or cells after demolding, and transferring the agarose pre-embedded organoids or cells to an embedding box, and sequentially performing ethanol gradient dehydration, transparent treatment and paraffin wax immersion treatment on the sample according to a specific procedure; and 5) paraffin embedding. Compared with the prior art, the application has the following beneficial effects: improving organoid / cell density; by agarose embedding, reducing the relative dispersion volume of organoids / cells, significantly improving the density of the sample in the slice, facilitating observation and detection, and having good detection effect.

This invention discloses a low-altitude unmanned geochemical integrated geological exploration system and method. The system includes a geochemical exploration data processing unit, an in-situ geochemical robot, an unmanned aerial vehicle (UAV) geochemical sampling robot, and an UAV storage and flight control mobile operation unit. The method involves acquiring data on the exploration area and formulating a geochemical survey plan based on the data; the in-situ geochemical robot performs preliminary screening of geochemical data collection in the target area according to the survey plan and transmits the data to the geochemical exploration data processing unit; the geochemical exploration data processing unit processes and analyzes the preliminary screening data, delineates anomaly areas, and formulates a detailed geochemical survey design; the UAV geochemical sampling robot flies to the anomaly area and performs sampling and detection according to the detailed survey plan; the geochemical exploration data processing unit processes and analyzes all the geochemical data to obtain mineral-induced anomalies in the exploration area. This invention solves the problems of high reliance on manpower, high risk, low efficiency, high cost, and sparse geochemical data in traditional geochemical exploration.

The invention provides a combined process method for improving the yield of vacuum residue catalytic cracking products, which comprises the following steps: determining the asphaltene dispersion coefficient d of vacuum residue according to a formula (1), where w asphaltene, w colloid and w aromatics respectively represent the mass fractions of asphaltene, colloid and aromatics in vacuum residue; and carrying out modification and catalytic cracking reaction on the vacuum residue. According to the combined process method, the asphaltene dispersion coefficient d is ingeniously designed, and d is smaller than or equal to 0.5 and dgt; the vacuum residue of which the content is 0.5 is modified by adopting different modification methods, and then catalytic cracking reaction is performed under different conditions, so that the density of a catalyst in a reactor is improved, oil-agent contact in the reactor is improved, the contact instantaneous effective agent-oil ratio can be improved, the catalytic cracking reaction ratio can be remarkably improved, thermal cracking and condensation coke generation reactions are reduced, and the catalytic cracking efficiency is improved. Conversion of inferior heavy oil is promoted, meanwhile, the coke yield is remarkably reduced, and the yield of high-value products is increased.

The present application relates to a kind of spectral analysis system and method, specifically, a kind of laser-induced breakdown spectroscopy analysis system and method based on suspended electrode and filter paper.The system includes filter paper, adjustable sample stage, high-voltage discharge device, suspended electrode, laser ablation device and spectral signal acquisition and analysis device.The present application uses suspended electrode to change the distribution characteristics of high-voltage electric field, increase local electric field line density and electric field intensity, improve the collision frequency of charged particles in plasma, so as to further enhance the detection sensitivity of LIBS to trace elements, and reduce its detection limit.High-voltage discharge device is used to excite laser plasma again, to improve the detection and analysis ability of target elements.Filter paper enrichment method is used for pretreatment of the sample to be measured, which can effectively reduce the interference of liquid matrix on plasma spectral signal, and improve the sensitivity and stability of detection signal.

The application discloses a solid waste-based self-compacting super-waterproof backfill material and a preparation method thereof, and the solid waste-based self-compacting super-waterproof backfill material is formed by mixing and stirring slag and a solid waste-based high-impervious curing agent and water; the solid waste-based high-impervious curing agent comprises steel slag powder, granulated blast furnace slag, fly ash, red mud, industrial by-product gypsum, hydrophobic organic acid salt, alkali metal lactate, high-performance polycarboxylate water reducer and dispersant. Physical-chemical reactions occur in the mixing and stirring, a large amount of cementing bodies are generated in the curing process, the inter-particle pores of soil are filled, the structure is compacted, the strength is high, and the imperviousness is good; the application focuses on the solid waste resource utilization demand, has the advantages of high solid waste utilization rate, low economic cost, high fluidity, good waterproof performance and the like; and the application changes the need of adding cement clinker in traditional backfill materials, and is more economical and environment-friendly.

The present application relates to the technical field of weaving process, and particularly designs a multi-color cutting loop high-density weaving process. The lower needle is divided into three kinds, and the weaving group is also divided into three kinds, namely, the first weaving group, the second weaving group and the third weaving group. The cutting loop action performed in the first weaving group corresponds to cutting the loops woven by the second weaving group in the previous round. The cutting loop action performed in the second weaving group corresponds to cutting the loops woven by the third weaving group in the previous round. The cutting loop action performed in the third weaving group corresponds to cutting the loops woven by the first weaving group in the previous round. One root of yarn one and yarn two are fed into one weaving group, and the yarn one and yarn two are tightly bound to each other, so that the pile density is high. The weaving process adopts the loop cutting by turns, and the pile is not easy to fall off.

The invention discloses a low-temperature-resistant negative electrode zinc paste and a low-temperature alkaline zinc-manganese battery containing the zinc paste. The negative electrode zinc paste comprises the following components in parts by weight: 60-65 parts of zinc powder, 1-2 parts of a composite conductive agent, 0.1-0.3 part of a composite corrosion inhibitor and 35-38 parts of a low-temperature electrolyte; the low-temperature electrolyte comprises a multi-element nonionic surfactant system, a multi-element nano anti-freezing agent system and a mixed solution A, the 3.9 ohm discharge capacity of the battery under the condition of-40 DEG C is larger than or equal to 60% compared with the capacity retention rate at normal temperature, the interface impedance amplification is smaller than or equal to 15%, the hydrogen evolution amount is reduced by 80% on year-on-year basis, the process is compatible with an existing production line, and the battery is suitable for polar scientific investigation and electronic equipment in plateau and cold regions.

The embodiment of the present application provides an IBC battery aluminum paste and an IBC battery, wherein the IBC battery aluminum paste provided by the embodiment of the present application comprises an organic additive, boron powder, aluminum powder, gallium powder, glass powder and an organic binder. By adding gallium powder in the aluminum paste, because the gallium element has etching effect and high density, it is faster than aluminum to drop to the silicon surface in the sintering process, so that the Ga-Si contact probability is increased, the contact resistance of the paste and the battery is reduced, and a high open circuit voltage can be maintained. At the same time, because part of the aluminum powder is replaced by gallium, the content of aluminum is reduced, which is beneficial to reducing the side effect of Al, so that the Al-Si reaction is weakened, the formed aluminum silicon corrosion pit is shallow, the recombination is reduced, so as to improve the open circuit voltage and the photoelectric conversion efficiency of the battery. Therefore, the problem that the existing IBC battery aluminum paste is easy to form metal recombination in the cooling process after being sintered into a positive electrode grid line, resulting in the decrease of the open circuit voltage and the photoelectric conversion efficiency of the battery piece is solved.