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- Park Ho-seok of Chemical Engineering developed an all-solid secondary battery that can be freely bent or cut
- Park Ho-seok, a joint research team from the Department of Chemical Engineering/Polymer Engineering, developed an all-solid secondary battery that can be freely bent or cut. South Korean researchers have developed an all-solid secondary battery that works even if it is bent or cut freely. The secondary cell battery if exposed in the air inside the stable operation of the very stable, researchers explained. It is evaluated as a technology that will increase the degree of freedom in producing and designing wearable electronic devices because it can be freely transformed into secondary batteries. The Korea Basic Science Support Institute (KBSI) announced on the 13th that Dr. Kim Hae-jin's team of the Ministry of Materials and Analysis developed a solid secondary battery that can be safely and freely modified through joint research with the Korea Chemical Research Institute, Sungkyunkwan University, Chonnam National University and Inha University. All solid secondary batteries with 100£h/g capacity, which are manufactured to check their performance, maintained 90% of their capacity even after 500 charging and discharging and 1,000 bending tests were tested. In addition, batteries that are thin with a thickness of less than 1mm worked normally even in extreme deformation such as crumpling or cutting. It also has the advantage that all solid secondary batteries developed this time can be produced using the existing secondary battery manufacturing process. The researchers expect that commercialization of all solid secondary batteries will be easier through cooperation with real-demand companies. This solid secondary battery consists of solid, not liquid, electrolytes that can flow electric energy between the cathode and the anode. Secondary batteries that use conventional liquid electrolytes have a risk of explosion because they leak out of the battery even if they have only a small groove. The entire solid secondary battery developed by the researchers does not need a separation membrane that separates the anode from the anode, but also works stably even if the battery is cut or the battery's outer pouch is opened to expose the inside to the air. Dr. Kim Hae-jin said, "Explosion and fire accidents of existing secondary batteries stem from liquid electrolytes, and through this fusion study, we have secured the technology to manufacture next-generation free-form full-solid secondary batteries that are safe." In order to develop whole-solid secondary batteries, researchers secured material technology by developing new materials for anode and cathode materials, whole house, and solid polymer electrolyte and improving performance of existing materials at the same time. In particular, it has developed a composite electrode technology that can move lithium-ion smoothly to the inside of the electrode and a cell assembly technology that can minimize surface resistance. We also have a pouch-type full-cell full-solid secondary battery manufacturing technology to apply it to a large area and an additive technology to connect a number of single cells in series or in parallel within a cell stack. The researchers evaluated that the free deformation of the battery is possible despite the large area of single cells, which is the result of advances in conventional solid secondary battery technology. Because it can make large capacity and high voltage, it is essential for developing high-performance solid secondary batteries. Dr. Kim Hae-jin said, "This technology can replace existing technologies that will reach performance limits within the next 10 years, and it can be applied to wearable electronics, drones, and large secondary batteries used in electric vehicles, so it will act as a game changer for the future secondary battery industry." In this joint research, KBSI was in charge of research projects and was in charge of developing anode materials and assembling all solid secondary batteries. Dr. Kim Dong-wook of the Institute of Chemistry and Professor Ji-ho Ji-ho of Inha University have developed solid polymeric electrolyte materials. Professors Park Ho-seok and Son Sung-wook of Sungkyunkwan University and Jeon Young-si of Chonnam National University were in charge of developing cathode materials and developing flexible collections. The study was conducted as a creative convergence research project by the National Science and Technology Research Association, and KBSI was the organizer and conducted the study for five years from 2015. In the first three years of the first phase, companies participated in securing key element technologies, including material development, and in the second phase, companies participated in research on core technologies for producing and practicalizing solid secondary batteries. During the research process, 65 SCI-level papers were published, including 46 patent applications (including eight overseas cases) and 21 patent registrations (including three overseas cases). Source : https://www.fnnews.com/news/202101130939439280
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- 작성일 2021-01-24
- 조회수 4408
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- Chemical Engineering-BASF Research Institute, Development of Plastic Flexible Substrate Technology for OLED
- Department of Chemical Engineering-BASF Electronic Materials Research Institute, Development of Plastic Flexible Substrate Technology for Next Generation OLED - Securing technology for plastic substrates with glass substrate level transparency and thermal expansion coefficient - Selecting an internal cover thesis for Advanced Materials Interfaces In cooperation with BASF's Asia-Pacific Electronic Materials Research Institute, a global chemical company, Korea University has succeeded in developing plastic flexible substrate technology for OLED displays. Through industrial-academic cooperation research to develop technologies for next-generation displays, it has secured technologies for plastic substrates with transparency and thermal expansion coefficients that are equivalent to glass substrates. Professor Lee Ki-ra, Professor Cho Sung-min, Professor Yoo Pil-jin, Professor Kim Duk-joon's research team, and Dr. Marc Schroeder of Basf Asia-Pacific Electronic Materials Research Institute manufactured nanoparticles with refractive index in PESU. New composite film materials developed can be used as plastic flexible substrates for next-generation OLED displays that have excellent transparency and require high performance stability due to low thermal expansion factors. The researchers coated silicon oxide (SiO2) nanoparticles on zinc sulfide (ZnS) particles to equal refractive index of polyethersulfone macromolecules, and implemented relative transparency of more than 90% of composite films. At the same time, chemical bonds between particles and macromolecules were induced to reduce the thermal expansion coefficient of composite films to 12 ppm/oC, which is much lower than the 20 ppm/oC required for practical use in OLED processes. The results of this study were selected as an internal cover paper in the renowned international journal Advanced Materials Interfaces in material science and published in December, and the industry-academic cooperation team is currently conducting a follow-up study to commercialize plastic flexible substrates for OLED displays. Shin Dong-ryul, president of this school, expressed his expectation, saying, "It will be the best model of global industry-academic cooperation pursued by universities around the world as the first joint research by the cooperation of the two institutions, each symbol of innovation." Dr. Mark Shredder, former director of electronic materials research in Basf Asia-Pacific, said, "We have achieved the achievement of developing new nano-complex materials with excellent materials applicable to electronic devices in cooperation with top-notch universities and affiliated studies in Korea."
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- 작성일 2021-01-24
- 조회수 4526
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- Professor Han Gwi-young of Chemical Engineering has published a translation of "All About Global Warming."
- Professor Han Gwi-young of the Department of Chemical Engineering/Polymer Engineering has published a translation of "All About Global Warming." Han Gwi-young, a professor of chemical engineering/polymer engineering at our university, translated and published Jeffrey Bennett's "Everything about Global Warming" (human pattern), which contains the scientific facts, results and solutions of global warming. Is human-induced 'global warming' a real threat to the future? Many people express their opinions on the subject, but few people speak with solid scientific evidence. In fact, the science of global warming is not that difficult. Clearly, the Earth's climate is complex, and there are many factors in the science of global warming. However, the mysterious climate phenomenon that we hear in the media and books is actually simple if we focus on the key points. This book is a must-read for everyone to easily understand, respond correctly, and act on the subject of global warming. Professor Han Gwi-young has been working on energy for 30 years, especially on renewable energy, focusing on engineering measures to address the shortage of fossil fuels and environmental pollution caused by the use of fossil fuels. Recently, he translated the book by paying attention to its seriousness while conducting research on reducing carbon dioxide emissions, which is the cause of global warming.
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- 작성일 2021-01-24
- 조회수 4553
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- Lee Byung-sang of Materials Engineering, Development of Analyzing technology to form of Nanomaterials by Utilizing AI
- Lee Byung-sang (Professor Lee Jung-heon's research team) of the Department of New Materials Engineering, Development of a technology that can statistically analyze the form of nanomaterials by utilizing AI-based image analysis technology - It can be used in various fields where nanomaterials are utilized. - Lee Byung-sang, a Ph.D. researcher at the Department of New Materials Engineering, and Professor Lee Jung-hun developed an algorithm that can analyze the morphological properties of nanoparticles with high accuracy by applying AI technology to electron microscopic image analysis technology. ※ Authors: Lee Byung-sang (first author, new material engineering), Yoon Seok-young (participating author, Sungkyunkwan University), Dr. Lee Jin-woong (participating author, new material engineering), Jang Jun-hyuk (participating author, new material engineering), Yoon Jae-sup (participating philosopher, system). Although the form of nano-new materials used in various fields such as renewable energy, nanopharmaceuticals, catalysts, and sensors has a significant impact on physical and chemical characteristics, no technology has existed so far to accurately read and quantitatively analyze its morphological information in large quantities. Lee Byung-sang and Lee Jung-hun's team developed a technique for analyzing nanoparticles with 99.75% higher accuracy and 0.25% lower misperception rate by automatically optimizing various methods and variables used for image analysis using a machine learning technique called genetic algorithm. In particular, this algorithm can significantly increase the density and analysis accuracy of nanoparticles at the same time by finding attached or enclosed nanoparticles in the electron microscope image, separating them by themselves, and removing them if they are not separated. Using this technique, the researchers conducted various statistical analyses of the morphological properties of nanoparticles. First of all, using the Markov chain Monte Carlo performed based on Bayesian statistics, we estimated the distribution of a large number of nanoparticle forms, which are 160,000 and found the number of nanoparticles needed to be representative at the confidence level. Furthermore, we have developed algorithms to automatically classify and cluster various forms of nanoparticles present in the samples, and we can confirm that the optical properties of nanoparticles can be calculated with considerable accuracy when utilizing this statistical information. The results of this study were published in the online edition of ACS Nano (IF=14.58) and adopted as an ACS Editors' Choice paper recommended and selected by more than 400 editors of 44 journals published by the American Chemical Society. ※ 논문명 : Statistical characterization of the morphologies of nanoparticles through machine learning based electron microscopy image analysis The study is the first to precisely analyze and statistical analysis of the morphological properties of hundreds of thousands of nanoparticles by applying machine learning techniques to electron microscopic image analysis, and is expected to be one of the key technologies needed to build big data. In particular, since the shape of individual nanomaterials has a significant impact on physical and chemical properties such as optical properties and surface reactions, this technology can be used not only to evaluate the reliability of nanomaterials but also to develop new nanomaterials.
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- 작성일 2021-01-24
- 조회수 4543
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- President Shin Dong-ryul joins "Stay Strong Campaign" to overcome Corona 19.
- President Shin Dong-ryul joins "Stay Strong Campaign" to overcome Corona 19. President Shin Dong-ryul joined the Stay Strong Campaign on December 7 to pray for the end of Corona 19. The Stay Strong campaign is a relay campaign launched by the Ministry of Foreign Affairs in March this year to spread solidarity and support around the world in response to Corona 19. President Shin Dong-ryul said, "Even in the midst of the recent spread of Covid 19, our university puts the safety of the community first with thorough quarantine management and rapid response. Please follow the personal quarantine rules and work together to overcome Covid-19. Shin Dong-ryul participated at the recommendation of Oh Se-jeong, president of Seoul National University, and named Jang Yoon-geum, president of Sookmyung Women's University, Kim In-cheol, president of Hankuk University of Foreign Studies, and Kim Chang-yong, head of the Information and Communication Industry Promotion Agency.
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- 작성일 2021-01-24
- 조회수 4431
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- Interview with Professor Kim Han-ki of Materials Engineering - "New Run and Photosynthesis… I'm a science painter."
- Interview with Professor Kim Han-ki of the Department of New Materials Engineering - "New Run and Photosynthesis… I'm a science painter." "Quantum mechanics starts with the question of whether light is a wave or a particle. So I drew waves in the middle of the painting and yellow particles in the middle of the wave. Kim Han-ki, 46, a professor of new materials engineering at Sungkyunkwan University, said this, pointing to a painting stuck in his laboratory at Suwon Campus on the 13th. Professor Kim is a 15-year-old semiconductor engineer who has 300 papers registered in SCI. While focusing on his research without a single sabbatical, he suddenly grabbed a brush in November last year. He also painted about 30 oil paintings in a year. Professor Kim of "Workaholic" began painting because of the conflict with his adolescent son. Unlike research, children's education did not go as well as their minds. He was also shaken when the child, who was attending the science and gifted institute of the city's education office, said he would quit his studies due to depression. So I just registered in the studio. "I wanted to find comfort in the painting. When I hold the brush, my thoughts disappeared and my mind became calm.” Like a scientist, he drew only "know-how." Neurons (neurocells) in the brain are connected like spider webs and "the principle of photosynthesis" in the canvas. "There were some painters who painted science, but they were mostly non-publicists, so they were based on inaccurate information. I knew exactly what my major was, and I wanted to express it exactly." "When I write a scientific paper, I put pictures in between to explain the principles," he said. "I thought I was drawing a picture for the paper to explain the concepts of quantum mechanics and AI to the public." Professor Kim said, "As I was immersed in art, I no longer leaned on my children and found happiness on my own." His son quit the gifted and started wrestling. "Last month, my son won a bronze medal in the national city and provincial competition during his presidency. Seeing her happy makes me feel like I've found the answer." "My goal is to draw one point a month consistently," he said. On the 17th, his first exhibition began at the Korean Museum of Art in Yongin, Gyeonggi Province. "I want to take the lead in breaking the barriers of science and art. I hope we can move the principles and applications of science to the arts and create rich expressions." Source : https://www.chosun.com/national/people/2020/11/25/EOQK47TWFNA6FHNCF3VDHTCZKM/?utm_source=naver&utm_medium=referral&utm_campaign=naver-news
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- 작성일 2021-01-24
- 조회수 4296
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- Professor Kim Jae-Yoon of Chemical Engineering, Development of Adhesive Hydrogel Patch for Transdermal Drug Delivery
- Research team of Professor Kim Jae-yoon of the Department of Chemical Engineering/Polymer Engineering, Development of Adhesive Hydrogel Patch for Transdermal Drug Delivery Professor Kim Jae-yoon's research team at the Department of Chemical Engineering/Polymer Engineering (first author Jeong Hu-yeon), has developed an adhesive hydrogel patch for transdermal drug delivery with excellent skin adhesion and mechanical strength. Hydrogel is a hydrophilic polymer three-dimensional network containing more than 90% of water and is widely used as a drug transfer material for delivering various physiological active drugs. However, conventional hydrogels have low adhesion to the skin, which limits the delivery of drugs from the skin for a long time, and hydrogels with adhesion have problems of tearing easily due to reduced mechanical strength. The team produced adhesive hydrogels, including poly-dopamine, which is well known as mussel adhesives, and porous silica nanoparticles with pore sizes of tens of nanometers. Due to the high interaction with the macromolecular chain, which forms hydrogels with a large surface area of porous silica nanoparticles, it was able to implement hydrogels with excellent skin adhesion while maintaining mechanical strength. Additional application of porous silica nanoparticles to the intersection between the adhesive hydrogel and the skin could further increase adhesion. If the adhesive hydrogel patch, which was made by putting the model drug in the pores of porous silica nanoparticles, was attached to the pig skin, the drug was slowly delivered from the skin surface to the skin. Even if removed from the skin, hydrogel residue was removed without leaving any residue on the skin, and the inflammatory reaction of the attached skin area was minimal, confirming that the hydrogel itself was highly biocompatible. Professor Kim Jae-yoon explained, "In the future, it will be able to be applied to develop patches for transdermal drug delivery that can deliver drugs while maintaining a wet environment for various skin diseases." The results of this study were selected as the Frontispiece paper, an international journal of materials science, and was conducted with support from the Ministry of Science and ICT and the Korea Research Foundation for mid-sized researchers and the Korea Forest Service and Forestry Research Institute. ※ Name of the paper: Adhesive Hydrogel Patch with Enhanced Strength and Adhesiveness to Skin for Transdermal Drug Delivery, Adhesive Hydrogel Patch for Transdermal Drug Delivery with Excellent Strength and Skin Adhesiveness
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- 작성일 2021-01-24
- 조회수 4497
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- Professor Kim Sang-woo of the Department of New Materials Engineering, Selected as "2020 Top 10 Nanotechnology"
- Professor Kim Sang-woo of the Department of New Materials Engineering, Selected as "2020 Top 10 Nanotechnology" "Nano-power generation device technology for human implantation medical devices" and "Nano-heated material technology to improve electric vehicle efficiency" were selected as the top 10 nanotechnology in 2020. The Ministry of Science and ICT and the Ministry of Trade, Industry and Energy announced this year's top 10 nanotechnology at the 2020 Nano Convergence Performance Exhibition held at Yangjae L Tower in Seoul on the 26th and awarded ministerial commendations to those who have contributed to nanotechnology and industrial development. Among the top 10 nanotechnology, "Nano Power Device-Based Human Insertion Medical Device Charging Technology" (Professor Kim Sang-woo of Sungkyunkwan University) and "Nano Carbon-Based High Efficiency Thermal Materials and Flexible Film Heater Technology" (CEO Kim Yoon-jin) were selected as representative technologies for nano-field. Professor Kim Jin-young of Seoul National University, Professor Lee Nae-sung of Sejong University, Researcher Kim Jun-hyun of the National Nanotechnology Center, Director Oh Jae-seop of the Korea Advanced Institute of Science and ICT, Kim Se-hyun of LG Chem, Kim Ki-bok, Professor Kang Min-sik of Pohang University, and Choi Ji-sup. Lee Da-jin of Sookmyung Women's University and Lim Tae-kwon of Chonbuk National University received the Minister of Science and ICT award. Source : https://www.yna.co.kr/view/AKR20201126035400017?input=1195m
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- 작성일 2021-01-24
- 조회수 4319
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- Engineering Education Innovation Center to hold CATIA-based 3D modeling competition
- Engineering Education Innovation Center to hold CATIA-based 3D modeling competition The Engineering Education Innovation Center, along with the Construction Machinery Industry Human Resources Development Council (hereinafter referred to as the Construction Machinery Industry SC), held the CATIA-based 3D Construction Machinery Concept Modeling competition at the Natural Science Campus Running Factory. ※ Computer Aided Three-dimensional Interactive Application (CATIA) : A three-dimensional computer-assisted design program designed to design and develop automobiles or aircraft. This competition is the first of its kind in the construction machinery industry and proposes Concept Design to implement future construction machinery. Students received training on the CATIA Design Tool through Webex for about three weeks from August, and based on this, they implemented the completed model as a 3D printer. 39 students from 13 teams from 10 universities, including Sungkyunkwan University's D-MAN team, participated in the competition, and the screening was conducted by reflecting creativity, convergence, technicality and completeness, planning, teamwork, and sincerity. Results of CATIA-based 3D Construction Equipment Concept Modeling Competition [Target] TEAMMAD (Sungkyunkwan University - Kang Jung-hoon, Ko Young-woo, Choi Joo-sung) [Gold statue] Triple Point (Incheon University - Lee Won-seok, Lee Ha-neul, Kwak Sung-chan) Kyung Hee Crab (Kyung Hee University - Jang Dong Kyu, Kim Se-eun, Yoon Ye-jin) [Silver Award] Dankook University Dankook University (Jeong Jin-young, Lee Kyung-rok, Kim Tae-hyung) H.M.M.L. (Hoseodae - Kim Seokhee, Lim Changhyun, Jang Jungjae) [Statue] EROCA (Hanyang University - Park Dong-il, Lim Sung-taek, Choi Yoo-shin) Versatile (Daejin University - Kwon Woo-sung, Choi Ah-yoon, Park Seo-yeon) [Best Award] Excited (Gachon University - Oh Se-jin, Choi Bo-sung, Choi In-ho) Young Seok Bin (Gangwon University - Park Soobin, Lee Hyo Seok, Jeon Ju Young) KHU-TOOL (Kyung Hee University – Chun Hee-chan, Shin Dong-jin, Lee Hyo-bin) D-man (Sungkyunkwan University – Kim Dong-hyun, Lee Ki-taek, Park Hye-chan) Canvas de Miracle (Aju-dae – Baek Seung-hoon, Myung Seol-won, Lee Dong-jae) Ecanic (Hanyang University – Park Bum-soo, Kang Young-hoon, Kim Bum-soo) Kang Sung-in, general manager of the Construction Machinery Industry SC, said, "With this competition, we have strengthened our connection with the Engineering Education Innovation Leadership Center to provide a venue for the inflow of talented people and interest in the construction machinery industry." Lee Joon-young, head of the Center for Engineering Education Innovation, encouraged participants, saying, "It means a lot to complete education and participate in competitions in such a difficult time." The Engineering Education Innovation Center will carry out various projects to foster on-site customized human resources through business cooperation with TP and industry associations in various regions, including the Korea Construction Machinery Industry Association. 1st Prize ( SungKyunKwan Univ. - Teamed )
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- 작성일 2021-01-24
- 조회수 4555
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- Engineering Education Innovation Center hold a presentation of the final results of the S-HERO
- Engineering Education Innovation Center hold a presentation of the final results of the intelligence information connection S-HERO The Engineering Education Innovation Center held the "2020 Intelligence Information Connect S-HERO Final Results Presentation" at the 2nd Engineering Hall of the Natural Science Campus on 11.13 (Friday), which concludes the creative research team's activities this year. Professor-industrial mentor-team leader (graduate student) and team member (undergraduate student) formed a research team, and creative research activities that carried out the Capstone design research topic were more active than ever despite the aftermath of Corona 19. 56 S-HERO research teams with 302 students, 39 professors, and 51 industry mentors are divided into 6 categories: 1) Machinery/Aeronics/Joseon Marine Engineering, 2) Civil Engineering/Architecture/Environment/Resource, 3) Electricity/Electronics/Life/Material/Fiber, 5) Computer/IT/Other, 6) Online Platform Zo After the final screening, a total of 31 teams won the main prize, including one team for the grand prize, four gold medals, eight silver medals, and 18 bronze medals. The 3CHEM team, which collaborated with DS Lab on the theme of Wireless LED dot Patch, was honored with the Sungkyunkwan University President's Award, and the S.O.L.A.R.S team of "COLLECTING LITHIUM-ION FROM THE DISCHARGE SEATCHATION OF LATER" team of "Developing Solar Smart Classification System through Recycling Mark Recognition." At the finals, Shin Dong-ryul, president of Sungkyunkwan University, and Song Sung-jin, vice president of Sungkyunkwan University, made a surprise appearance using Zoom to encourage teams who have been conducting research activities until the end without getting tired even in difficult times. President Shin Dong-ryul said, "I believe the experience of participating in meaningful projects that solve big and small issues in the actual industrial field with team members in various majors will serve as a foundation for students' future growth."
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- 작성일 2021-01-24
- 조회수 4567