2021-05-18
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In order to accelerate the transformation and upgrading of Taiwan's industries, the government has promoted the "5+2 Industrial Innovation Plan". Based on this, it has further proposed "six core strategic industries" in 109 years. The Ministry of Science and Technology's "Green Energy Technology Joint Research and Development Program" is affiliated to the "Green Power and Renewable Energy Industry" of the six core strategic industries. The forward-looking technology application of energy and energy storage helps to promote the policy target of 20% of renewable energy power generation in 2025.
The development of forward-looking green energy technology in the field of energy creation cooperates with the characteristics of renewable energy such as Taiwan's solar photovoltaic and offshore wind power, and drives the cost reduction of solar photovoltaic by improving the efficiency of battery modules, and uses the smart platform system to help marine engineering measurement of offshore wind farms And operation and maintenance, reduce the cost of wind farm operation and maintenance, in order to enhance the competitiveness of the industry.
It is urgent to improve the efficiency of solar cells. The team of Professor Chen Yinqian of Chenggong University uses atomic layer deposition technology to deposit different oxide material layers in stacked solar cells to optimize the thickness, quality and material purity of each layer to further enhance solar energy. battery quality. The team of Professor Xu Jinwei and Professor Liu Zhengyu of Central University used flexible III-V solar cells to collect outdoor light sources and provide enough power for the smart module (temperature sensor and Bluetooth) to send back electronic signals, moving towards the "self-sustainability" of the smart module.
In terms of cost reduction, the team of Professor Huang Junjie of Daye University used non-vacuum equipment instead of plasma-assisted chemical vapor deposition (PECVD), atomic layer deposition equipment (ALD) and copper paste instead of silver paste to achieve low-cost emitter passivation and Rear electrode (PERC) solar cell development. Associate Researcher Zhang Guihao of Chenggong University and Professor Li Wenxi's team innovated a process to replace solar aluminum electrodes, and applied low-cost air-sintered copper electrodes to high-efficiency double-sided solar cells, which will effectively reduce the cost of solar cells and increase the profitability of the industry.
With the gradual saturation of the solar photovoltaic production capacity market, related companies are transforming to seek high-efficiency and ultra-lightweight solar modules. Taking the application of drones as an example, the team of Professor Lan Chongwen of National Taiwan University sewed clothes for drones that can absorb sunlight and convert it into electricity. , given tasks such as investigation and communication. The team of Professor Lin Qingfu of National Taiwan University developed a large-area (30x150 cm 2 ) solar simulator suitable for lightweight solar modules of fixed-wing UAVs , and built a solar simulator at Chengnan Campus of Yilan University to test take-off and landing of solar UAVs. flight field.
Hydrogen energy is a clean, high energy density, environmentally friendly, zero-pollution, widely used and easy-to-obtain new energy. Biomimetic batteries are multifunctional solar systems that can produce hydrogen and generate electricity by imitating plant photosynthesis. The team of Professor Yan Daren of Tsinghua University developed a hydrogen photocatalytic catalyst that converts platinum into a more popular and efficient material. Through the plasmonic structure, the interaction between molybdenum disulfide and sunlight light field is strengthened to increase the conversion of light energy into hydrogen. energy efficiency. The team of Professor Wang Guanwen of Central University built a high-efficiency, stable and low-cost double-effect hydrogen production and electricity generation system, using its solar energy to convert regenerative power to photocatalytically decompose water to produce hydrogen and store it to achieve the concept of sustainable energy development.
Facing the unique geographical environment of high temperature, high humidity, multiple typhoons and frequent earthquakes in the waters near Taiwan, as well as the harsh conditions at sea, Professor Lin Dahui of Chenggong University developed a wind direction orientation system for offshore observation towers, which can reduce measurement costs and improve observation accuracy And measurement efficiency, it is helpful for marine engineering measurement of offshore wind farm development. The team of Professor Cai Jinfa from National Taiwan University focuses on the development of a big data smart platform for offshore wind farm operation and maintenance, providing data and developing various measurement technologies to achieve early diagnosis and treatment of wind turbines and early prevention, in order to reduce operation and maintenance costs.
With the rapid development of the power system, the deployment of power storage equipment should increase its flexibility to ensure the storage integration of intermittent renewable energy and promote efficient conversion between power supply and storage. In the field of energy storage, the core development projects are based on advanced secondary batteries and advanced hydrogen energy.
In order to further improve the safety and efficiency of energy storage batteries, all-solid-state lithium batteries have become the mainstream of research and development. The research direction is mostly aimed at innovative materials and designs of battery positive electrodes, negative electrodes, and electrolytes, to further increase the energy density requirements and improve the overall energy of the battery system.
In terms of positive electrode materials, the team of Professor Lin Zhengyu of Tatung University has developed a layered lithium-rich manganese-based positive electrode material synthesis technology that can be mass-produced. Battery stability and capacity.
In terms of negative electrode materials, the team of Professor Du Zhenggong of Tsinghua University used solar panels to make scrap silicon, which was converted into high-value lithium battery negative electrode materials, and used cross-linking reactions to develop silicon negative electrode binders. Co-precipitation method, self- The redox method is used to develop and modify positive electrode materials to improve the cycle life and rapid charge and discharge capabilities of lithium-ion batteries. The team of Professor Chen Zhi from Jiaotong University used electroplated twin crystal copper foil as the substrate of the silicon-based negative electrode material, combined with the nickel-rich layered oxide positive electrode to form a lithium battery, which improves the overall energy density of the lithium battery and provides better devices or vehicles. Endurance.
In terms of electrolyte materials, the team of Professor Yang Chuncheng of Mingzhi University of Science and Technology mainly developed lithium lanthanum zirconium oxide solid electrolytes, applied them to NCM811 cathode materials, and finally assembled them into button-type and pouch-type batteries. The team of Professor Fang Guanrong of Chenggong University has developed high-density perovskite, olivine, garnet structure oxide and sulfide electrolytes, as well as unique metal and non-metal interlayers, which can effectively reduce the solid-state electrolyte/electrode interface impedance. The team of Professor Wang Fumin from National Taiwan University of Science and Technology developed a solid electrolyte that is environmentally friendly and water-soluble, has the characteristics of low cost and green manufacturing process, and can effectively improve the interface problem of solid contact, and can be prepared into a high-capacity, lightweight and high-performance secondary battery. The team of Prof. Cheng Ru-chung from National Taiwan University has conducted in-depth research on polymer solid electrolytes. By synthesizing and modifying methods, flexible polymers can be provided. After further use, the types of lithium salts and additives can be adjusted to make the developed polymer solid electrolytes more in line with commercial specifications.
The reason why hydrogen energy can be used as an important energy storage technology research and development is because it can eventually practice clean energy, provide effective decarbonization methods for many industries (such as chemical industry, steel heavy industry, and long-distance transportation), reduce carbon emissions, improve air quality and Enhance energy security. Compared with other energy storage systems, another advantage of hydrogen energy is that the power-to-gas energy storage system has the characteristics of large storage capacity and long discharge time.
The Institute of Nuclear Energy of the Atomic Energy Commission of the Executive Yuan has long focused on the field of hydrogen energy. Dr. Zhang Junliang's team developed a mass-produced technology verification for the preparation of metal-supported solid oxide fuel cells by atmospheric plasma spraying, which can be used for the production of large-area (10╳10 cm2) metal-supported solid oxide fuel cells; Yu Qingcong, associate researcher The team uses new hydrogen production technology combined with carbon dioxide capture technology to produce more than 95% of hydrogen using low-cost catalysts, eliminating the need for complicated purification processes and greatly reducing the threshold for hydrogen production; researcher Li Ruiyi's team focuses on the development of solid oxide fuel cells for power generation The system can directly convert fuels such as hydrogen, gas or natural gas into electricity, and recover waste heat for reuse, with high energy conversion efficiency.
In terms of fuel cells, the team of Professor Li Shengwei of Central University has developed ceramic electrochemical energy storage batteries with medium and low temperature operation. The key electrolyte materials used can reduce the operating temperature to the range of 400-700 ° C, and the development of key electrolytes, hydrogen electrodes and air electrode materials Performance and microstructure design, using electrospinning technology to make air electrode material nanofibers, and successfully integrating with electrolytes, can improve the performance of single cells by 14.1%.
In terms of storing hydrogen, the team of Associate Professor Chen Canyao and Professor Zeng Fangen of Tsinghua University chose carbon materials for hydrogen storage research, synthesized nanocarbon spheres by zero-template hydrothermal carbonization, and finally supplemented with nano-metal modification to produce hydrogen spillover effect (Spillover Effect ) to enhance the hydrogen adsorption efficiency.
In terms of hydrogen production, the team of Professor Zheng Zhicheng of Taipei University of Technology is committed to developing low-cost, high-stability, high-efficiency medium-temperature solid-state oxide electrolysis battery electrode materials, and developing a new type of ammonia cracking catalyst technology to greatly improve the existing ammonia cracking catalyst. The disadvantage of the reaction rate is too slow. The team of Professor Yang Xihang from Chung Hsing University developed non-precious metal catalysts for water electrolysis to reduce device costs, and developed anion exchange membranes and membrane electrode groups to effectively improve efficiency. The team of Professor Xie Zonglin of National Taiwan University has developed a breakthrough solar electrolysis water hydrogen production technology, using low-cost, easy-to-mass production, and high-efficiency perovskite-silicon stacked solar cells to electrolyze water to produce hydrogen, and to achieve a competitive solar energy conversion Hydrogen efficiency level (10-15%). Professor Hu Qianjie from National Taiwan University of Science and Technology has developed a composite membrane suitable for hydrogen separation. By using the basic theory of thermodynamics and kinetics to control the membrane formation mechanism, a substrate membrane with high porosity and stable structure has been developed. The substrate membrane with excellent characteristics and Select the layer.
The Ministry of Science and Technology's "Green Energy Technology Joint Research and Development Program" uses the forward-looking innovative research and development energy of the academic and research circles to promote the technological innovation of new energy and renewable energy, further expand the benefits of industry-university-research links, and actively continue the scientific research results to implement industrial applications, with a view to Build opportunities for my country's green energy industry, and assist the government to achieve energy transformation, and leap onto the international stage through the development of green energy technology.
