The 7th "Maker China" SME Innovation and Entrepreneurship Contest, Photovoltaic New Energy Industry Circuit, settled in Xuzhou

In order to thoroughly implement the decision -making and deployment of the Party Central Committee and the State Council, further stimulate the "dual innovation" vitality, gather "dual innovation" resources, play the role of innovation and entrepreneurship on improving the competitiveness and stability of the industrial chain supply chain Development, in accordance with the relevant requirements of the Ministry of Industry and Information Technology and the Ministry of Finance, the seventh "Maker China" SME Innovation and Entrepreneurship Contest has been settled in Xuzhou.

The competition was sponsored by the Xuzhou Industry and Information Bureau, and the theme of "Empowering the Future of Double Carbon Intelligence" brought together many hot issues on the current photovoltaic new energy industry chain. The contest is a national competition for the whole society. It is planned to adopt the game system model of online preliminary rounds, online rematch and offline finals. The competition period continues from June to August. The relevant information of the competition is as follows:

(1) Participation conditions

1. Enterprise Group

(1) Registering in China, complies with the "SME Planning Standards" (Ministry of Industry and Information Technology Union Enterprise [2011] No. 300) documents (can scan the code to use the "SME scale type self -test applet" for self -self Measurement);

(2) Participating projects have entered the market and have good development potential;

(3) Disputes of independent intellectual property rights and immovable rights;

(4) No bad records.

2. Maker group

(1) Personal or team that abides by the law;

(2) There are no more than 5 members of the team;

(3) The creative, products, technology and related patents of the project belong to the participating teams, and have no intellectual property disputes with other units or individuals.

(2) Participating requirements

1. Participating works must be in line with the direction of the track, and the participating works that have nothing to do with the direction of the game will be regarded as invalid.

2. The same participation works are not allowed to register repeatedly. The same participating team signed up for up to 2 works. The works that have won other "Maker China" awards must not be registered.

3. The participating team must submit the entry explanation documents and other related materials through the participating requirements, and ensure the authenticity, accuracy and integrity of the materials.

4. During the review of the entry, the competition organizing committee may ask the participating team to add other necessary description materials in accordance with the suggestions of the expert committee of the competition.

5. All the submitted works and related materials are not refunded in principle.

(3) Registration requirements

Participants need to register online through the official website of the "Maker China" SME Innovation and Entrepreneurship Competition (http://www.gcltech.com/register/). Material upload:

1. Participating team declaration form

Introduction to the participating team: core member resumes, team core qualifications and advantages. It should be consistent with the content of the website.

Introduction to the entry: name, background, the main problems/main scenes, core advantages, application enterprises, etc.

Product/solution introduction: technical architecture, functional description, innovative, universal, openness, etc. of schemes.

Commercial value analysis: market analysis, competition analysis, profit model, market strategy, etc.

Application effectiveness: The application of the solution and the application value, the return on investment, the deployment cycle, the promotionability, etc.

2. Introduction to PPT and other related materials

Online registration

From now on, the official website of the "Maker China" SME Innovation and Entrepreneurship Competition (http://www.gcltech.com/register/) is registered for registration, and no registration fee and participation fee will be charged. The registration time is ended at 24:00 on July 10.

Online preliminary

In late July, the jury formed by the preliminary competition of the competition at home and abroad to conduct a centralized review of the participating projects. In principle, about 40 projects were selected. To.

Online rematch

In early August, the jury formed by experts at home and abroad to make a remote online review of the finalists of the finals. The comprehensive judges scored scores and finally selected about 30 promotion finals. According to the prevention and control requirements of the epidemic and the registration of the contest, if the jury opinions are consistent, the semi -participating projects can also be promoted directly to the final.

Offline

At the end of August, an offline final road show was held in Xuzhou. In accordance with the competition, the contestants were given to the contestants' lectures and questions from the review experts, and a total of 16 award -winning projects were decided. In principle, 1 first prize, 2 second prizes, 3 third prizes, 3 winning prizes in the enterprise group; 1 first prize in the maker group, 1 second prize, 2 third prizes, 2 third prizes, 2 third prizes, 2 third prizes, 2 third prizes, 2 third prizes, 2 third prizes, 2 third prizes Two winning prizes (specific quota allocation is adjusted accordingly according to the registration status).

In principle, there are no more than two award -winning projects in each competition group. The awards ceremony of the contest was uniformly awarded the award certificate.

In order to further clarify the technical needs and match the accurate supply and demand, GCL Group will conduct technical intercourse one week before the event of the project subject to participate in the finals (including technical needs, technical background, technical name and function, key core core, beneficial effects, etc.), Improve the accuracy, matching and applicationability of the contestants' "answering questions".

Fund reward

The first prize is 60,000 yuan, the second prize is 40,000 yuan, the third prize is 20,000 yuan, and the winning prize is 10,000 yuan (all the above bonuses are pre -tax bonuses).

(4) Strategic cooperation GCL Group needs to give priority to the actual business in the fields of photovoltaic, hydrogen energy, new energy, smart energy, mobile energy and other fields. Provide broad cooperation space for the industrial chain SMEs. After cooperation after the game, there are major breakthroughs in industry cutting -edge technology, and both parties can jointly formulate and improve national standards and industry standards to promote the transformation of scientific and technological innovation results between the two parties.

(5) Technical support

After the game, GCL Group established a special platform to provide technical consulting, technical consultation, and market expansion for the winners.

(6) Policy support

1. According to the relevant provisions of the Ministry of Industry and Information Technology's "Interim Measures for Cultivating Management of High -quality Small and Medium -sized Enterprises Cultivation" (Ministry of Industry and Information Technology Enterprise [2022] No. 63), the "Maker China" national top 500 enterprises will give policy support in the identification of special specialized SMEs. In the past three years, he has entered the list of the Fortune 500 enterprises in the "Maker China" SME Innovation and Entrepreneurship Competition to meet the basic identification conditions, obtaining a specialized new small and medium -sized enterprise in direct identification; The list of top 50 enterprises in the country has obtained the direct conditions for innovation capabilities of the new "little giant" enterprise. The 16 winning projects (including maker groups) in this track will directly enter the National Finals. It will recommend the national "Maker China" SME Innovation and Entrepreneurship Competition National 500 directly -pass list.

2. The award -winning projects that meet the relevant conditions are given priority to the relevant plan of the Xuzhou Science and Technology Line and enjoy the relevant policy treatment. Priority support for industrial development policies such as R & D institutions, the promotion and application of key new technologies and new products, the first set of applications, intelligent green manufacturing, and specialized new identification.

3. If the award -winning project meets the conditions listed in the implementation plan of the Xuzhou "555" citation project, the subject of the project can give priority to the Pengcheng Yingcai card, and enjoy various preferential policies such as the corresponding children's entry, rental housing and salary contribution awards in accordance with the policy and regulations.

4. The award -winning projects that meet the relevant conditions, according to the characteristics of the project and the industry category, coordinate the corresponding cities (county) districts, provide a maximum starting capital of 3 million yuan, and assist the project to land, and give preferential policies and supporting support.

5. The award -winning projects that meet the relevant conditions will give priority to enjoying policy support such as "Xu Digital Loan" and "small and micro -loan".

Xuzhou Industry and Information Bureau

Zhang Xingwang Tel: 18052118622

GCL Science and Technology General Engineer Office

Liu Tao Tel: 15021970470 Email: [email protected]

Attachment: Detailed description of photovoltaic new energy industry circuit topics

Information Center of the Ministry of Industry and Information Technology, June 10, 2022

Photovoltaic New Energy Industry Circuit Tournament Questions Detailed Instructions

1. Title Title: Industrial Silicon Lianlian Machine

Description of the topic: Realize the continuous pouring of industrial silicon hydranes to form a block between 80-100mm. Reduce industrial silicon equipment waste of finished products, reduce equipment accident rates, realize automation in production, reduce labor intensity, increase labor productivity, and make industrial silicon production closer to Industry 4.0. Background of the question: The current enterprise adopts the traditional ground model pouring and then uses artificial or crushing machines to crush. The size of the crushing particles is different. There are large hidden safety hazards, many employers, large waste, and large silicon silicon powder rates reached about 12%. In particular, the pouring metal silicon plates of land use the metal silicon product elements is analyzed, which reduces the difference in the quality of the metal silicon product in product quality. Expected indicators: (1) Corresponding cooling molding machine: liquid silicon cooling molding granularity requirements can be controlled at about 5-10mm, and the machine has the function of high temperature smoke recovery and thermal energy use. (2) Continuous cast circulating cooling molding device to process liquid silicon-sized granularity requirements at about 20-60mm, and the machine requires the function of high-temperature flue gas recovery and thermal energy utilization.

2. Title Title: Direct Single Single Crystal High Pure quartz 坩埚

Description of the topic: Photovoltaic single crystal technology transitions from P -type to N type. The metal impurities concentration of silicon single crystal growth and high temperature resistance have a direct impact on the life of the young children of the N -type single crystal and the oxygen content. By improving the service life of the synthetic process or coating technology, while meeting the precipitation of low metals and oxygen, it has become a key indicator for measuring quality. The background of the topic: The quality of quartz 量 is the main factor affecting the output of silicon crystal. There are many reasons for the failure of the growth of single crystals. Granules are one of the main reasons for the failure of large diameter and non -errors. Expected indicators: 32-inch corrosion <300 microns/hour, quality loss <30g, impurities <3.0E-5.

3. Title Title: Polycrystalline Silicon Casting Molition quartz lyt Melons

Description of the topic: Moisturizing quartz 石 in the photovoltaic industry is a necessary device for the production of polysilicon ingots. As the production process has improved, the quality of the product has improved significantly. 1PPM, because B is a doped element, the existence of B has potential adverse effects on the electrical properties of silicon ingots. How to optimize it through process, at the same time does not increase raw materials production costs, or develop new ore sources, the B content in the melting quartz material reaches the B content in high pure quartz sand, that is, below 0.1 PPM. The background of the topic: Photovoltaic direct -pull single crystal has become the mainstream technology to produce high -quality silicon wafers. Now the ingot casting is also purifying silicon materials as a direct pull single crystal raw material. Essence Objective to: B content <0.01 PPM. 4. Title Title: Gao Pure quartz sand purification process

Description of the topic: High -purity lithoscopic sand used in the inner layer of the fifty quartz for photovoltaic lithoscopy and semiconductor, the high purity sand is required, and the purity is high. At present, the price of quartz sand in foreign countries is high, reaching 50,000 yuan/ton, and affected by the epidemic, and the supply risk is high. It is reported that there are already team companies, breaking through purity and mass production bottlenecks, and advantages: low total metal impurities, low alkaline metal impurities, can ensure the softness of the sedimentation of the quartz cymbal process, which controls Holiday life. Domestic industrialization. Background of the topic: The price of imported quartz sand is high and the supply risk is high. Breakthroughs through the domestic purification process, the production cost of quartz pupa is reduced, and the continuous production cycle is guaranteed. Expecting indicators: High pure quartz sand total metal impurities ≤10ppm.

5. Title Name: Magnetic Extension Line Sensor

Description of the topic: The original silicon wafer to the battery film, during the process, should go through the cleaning and etching of multiple chemicals. There is a process supplement. In the process, the amount of various chemicals in the groove body is controlled by the circuit of the sensor through the pulse current inspired by the waveguide wire. Background of the question: Since the development of solar energy, the requirements of the product qualification rate are getting higher and higher, and the process control is becoming more and more refined. This has put forward high requirements for the wet equipment. The sensor is controlled, the sensitivity of the photoelectric sensor is greatly affected by external factors, such as high temperature, high humidity, high corrosion, and medicinal liquid viscosity, the cleanliness of the test pipeline, and so on. It is precisely because the accuracy of the solution controlled by the photoelectric sensor is fluctuating, and the frequency of the daily replenishment is very high, so it is difficult to use artificially to detect intervention. Difficulty in the replenishment error. Objective to: Matching liquid error <1%(the original error is 10%)

6. Title Name: Matching the boron expansion of the laser SE

Description of the topic: In the N -type Topcon battery, the positive stack of the laser SE can effectively mix with the contact site of the metal grid (electrode) and the silicon wafer, so that the short -circuit current and filling factors can be improved well, thereby improving the improvement, thereby improving Conversion efficiency. The position between the electrode is a mixed mix of a grid line (electrode) and the non -contact site of the silicon wafer. Such a structure can reduce the composite of the diffusion layer, which can increase the short wave response of light and reduce the contact resistance of the front metal electrode and silicon. Copycare background: TOPCON battery front metal induction composite is an important part of the total composite loss in solar components. In the Prec battery, by optimizing the diffusion process matching the laser SE, the purpose of reaching the metal grid line (electrode) and silicon wafer contact site for rewinding, but on the N -type battery Small degree and damage to the brought by laser for silicon wafers are difficult to balance the effectiveness of laser selective launch polar doping. Objective to: Light mixing concentration of 3 × 1018-6 × 1018cm-3, heavy mixing concentration of 2 × 1019-5 × 1019cm-3, and an efficiency of 0.2%-0.4%.

7. Title Name: Finger Finger Back contact the electrode structure of the battery

Description of the topic: Energy and environment are the two major conditions for human beings to survive and develop, and energy shortage, environmental pollution and ecological deterioration have become a major issue facing countries. The development of new energy and renewable clean energy, fully developing and using solar energy is a energy strategic decision for sustainable development of governments in the world. Modern solar battery industrialization production is developing in the direction of high -efficiency and low cost. For back contact with solar cells, it is characterized by the front of the battery without electrodes. It can effectively reduce the temperature coefficient of the battery and have great development potential. Background of the question: Photovoltaic single -crystal battery technology transitions from double -sided contact solar cells to the back of the back of the solar cell. The metal -based pattern structure of the back contact with solar cells, the series of losses in series, and the amount of silver consumption, and the battery component preparation of a small number direct impact. According to different types of silicon, the design of continuous fork finger distribution is distributed in the launch area/base area. The junction of the launch area/base area is completely isolated, which can reduce the composite of the carriers. Different amounts of auxiliary grid electrical electrodes in the launch area/base area. It can increase the collection of a small number of carrier -loaded electrodes; when using the main grid design, the main grid of the launch area/base area is a different shape PAD point. It can perfectly distinguish whether the electrode is positive or negative electrode, which is convenient for component welding to distinguish when welding. Reduce the probability of errors in the welding of components, so that the component does not need to add new materials and new equipment to the production of components under the conditions of existing welding technology; Collecting the current can reduce the consumption of silver, thereby greatly reduced production costs; low silver consumption, convenient component series, high efficiency and low cost, becoming a key indicator of measuring the back contact electrode structure. Objective to: Expecting indicators: 182 Simple Silver consumption <100mg, efficiency gain ≥0.1%. 8. Title Name: TopCon Battery Structure Industrialization Technical Bottleneck

Description of the topic: Polysi is plating; PolySi is mixed with unevenness; the spread of the P -type transmitting layer, the passivation of the P -type transmitting layer, the metal contact of the P -type emitter; Contradictions of characteristics. Background of the question: There are currently many technical bottlenecks, which restricts the expected goal of capital investment in the TOPCON structure battery: technical breakthrough, solve the current problem or replacement one by one.

9. Title Name: N -type Silicon High Uniformity Dynamic Dives Craft Digital Development

Background: Photovoltaic single crystal technology has changed from P -type to N type. Among them, crystal silicon heterogeneous tie solar cells (HJT) are the mainstream technology of the third -generation solar cells. The current mass production efficiency can generally reach 24%. The foundation of HJT to ensure that the battery conversion efficiency is the N -type silicon material with high uniformity doped. Although the improvement of the production line process can gradually overcome the problem of uneven mixing concentration of silicon materials, it is facing problems with difficulty, high costs, and long cycles. Based on the simulation simulation of the implementation of silicon material doping technology, combined with big data and artificial intelligence technology to carry out digital technology development, it can efficiently realize the improvement of the high uniformity of Silicon Silicon, effectively saving the economic costs and economic costs of industrial research and development Time costs. Objective: Build a doped process-silicon uniformity database, build a digital development platform for industrialization technology, shorten the research and development time of silicon doping process, and reduce research and development costs.

10. Title Name: Comprehensive use of polycrystalline ingot silicon material

Description of the topic: Through the method of casting the ingot, the ingredient plan, and the detection method, it will be used for the use of polycrystalline high -efficiency silicon materials to be used for single crystal direct feeding, increasing the use of yields and expanding the polycrystalline ingot furnace. Background of the question: As the polycrystalline silicon wafers and the battery industry chain continue to shrink, the polycrystalline ingot enterprise is facing huge survival problems. Used for single crystal direct investment. Objective to: Through various ingredients, crystal growth processes, controlling the content of boronicated oxygen and metal impurities in the silicon material, and detecting the content of these impurities in the silicon ingot in the silicon ingot through the resistivity, the life expectancy of the decree, and the infrared exploring And as a basis for the line, to obtain a single crystal available silicon material. Send the available silicon material to the single crystal silicon material factory for pulling the crystal experiments. Through the crystal, disconnect rate, the long -sisonic life of the single crystal rod, the conversion efficiency of the single crystal rod The purity of the silicon material of the ingot. The silicon material of polycrystalline ingot is generated. The B content is less than 10ppbw, the P content is less than 10ppbw, the GA content is less than 5000ppbW, the O content is less than 5*1016AT/CM3, the C content is less than 5*1016AT/CM3, and the metal content is less than 30ppbw.

11. Title Name: PEM Electrolytic Goods Core-Proton Exchange Membrane Development

Description of the topic: The current proton exchange membranes used are mostly full fluorosamulfonate. The preparation process is complicated, the synthesis is difficult, the cost is high, the price is as high as thousands of to 10,000 yuan per square meter. Nafion film. The modification of branches and sulfonization of polystumin, polyether etherone ketone can achieve low -cost, high -performance proton exchange membrane production, which can greatly reduce the cost of PEM electrolytic grooves, and then promote PEM electrolytic water technology and Green hydrogen application helps dual carbon targets. The background of the topic: PEM electrolytic water, as the optimal prospects of green hydrogen preparation technology, is subject to the high cost of PEM membrane and catalyst. Electrolytic groove cost. Objective to: On the basis of ensuring the performance of proton exchange capabilities and stability, the cost of proton exchange membrane is reduced by more than 30%. 12. Title Name: PEM membrane electrode preparation process

Description of the topic: Except for proton exchange membranes and catalysts, membrane electrode preparation processes are essential for reducing the cost of electrolytic systems and improving the performance and life of electrolytic grooves. The CCM method is the mainstream method of current membrane electrode preparation, but there are problems such as large diffusion resistance such as protons and hydrogen, unprepared diffusion gaps, and agglomeration agent, which affects the exposure and electrolytic efficiency of catalyst activity center. The orderly film electrode construction can realize efficient transmission of gas, protons, etc., reduce catalytic reunion, and effectively reduce catalyst load capacity. The background of the topic: The CCM method is to spray, transfer, and deposit the catalyst activity group on both sides of the proton exchange membrane, which will cause the catalyst activity center to be covered or filled with gas and ionic mass. Essence Objective: The amount of catalyst decreases by 5%year -on -year, and the energy consumption of electrolytes is controlled below 4.0kWh/NM3.

13. Title Title Name: Election air compressor and control system for high -power vehicle fuel cells

Description of the competition: meet the use of new energy commercial vehicle use environment, performance meets the use of 200-300kW hydrogen fuel system; the durability assessment of the air compressor under C-WTVC is not less than 2000h; meet the cold startup capacity of -30 ° C. At present, random vibration assessment and mechanical impact assessment are generally made in accordance with the battery pack vibration standard. The air compressor controller needs to complete the EMC demand test; the control strategy achieves changes in environmental pressure and other changes in the preset conditions. Background: Hydrogen fuel cell is a power generation device that can directly convert hydrogen and oxygen chemistry into electrical energy. Due to the advantages of abundant fuel gas sources, high efficiency, no noise, and pollution -free advantages, it will make great contributions to the energy conservation and protect the ecological environment in the future. It is currently a focusing on power generation technology in various countries. At present, the most important noise and energy consumption unit of hydrogen fuel fuel cells in the air compressor, and the demand for the development of high -power power supply systems has increased. Expecting indicators: Realize the capabilities of high efficiency, miniaturization and low cost, low noise, wide range of characteristics, and fast dynamic response of the air compressor. The air pressure ratio is not less than 3.5, the life span is not less than 20000H, the maximum flow is greater than 160g/s, the rated flow voltage ratio is 144g/s, PR2.8, and the speed is 120000R/min.

14. Title Title: Motor high -power vortex compressor

Description of the competition: The development of high-power vortex compressors to meet the needs of the integrated design of vehicle thermal management. The product needs to meet the complex and changeable environment of the vehicle. The environmental temperature should be able to work normally by -20 ~ 80 ° C. In order to meet the volume of vehicle layout requirements, the volume of compressors should be as small as possible. The compressor should be equipped with a controller and a circuit protection device. The protective device must be equipped with pre -charged capacitors, high -voltage insurance and relay. The product has self -protection functions such as overvoltage, under pressure, overload, overcurrent, stall, abnormal start -stop, IPM over temperature, and vortex core temperature. The background of the topic: The integrated design of the pure electric heavy truck heat management integration design needs to integrate the cockpit air conditioner and battery refrigeration requirements. The total cooling power demand reaches 15kW. Because the compressor is a special parts of commercial vehicles, the commercial vehicle refrigeration demand is large, major hosts are major hosts Factory thermal management integration development is in its infancy, leading to less supporting resources for compressors. Expected goals: long*width*height <400*170*170, high voltage range of 420 ~ 750V, rated power of 5.5kW, low voltage range of 9 ~ 36V, rated working current 0.3A, speed range of 2000 ~ 6000rpm, rated speed 4000rpm, master worker In the case of COP> 2.5, life> 50,000 hours, the cooling power is not less than 15kW, the protection level> IP67, total cost <2000 yuan.

Review: Pan Ruikai

Editor in charge: Yang Yan

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