News
July 2024
Hyeonjong and Seongjae won the grand prize at the KoMaP artificial intelligence (AI) competition organized by Korea Industrial Technology Agency (KIAT). Congratulations!! (이투데이, 부산일보, 데일리안, NATE, 대한경제 등).
Jae-Seung won the ACS Best Poster Award at the ACS Nano Summit 2024. Congratulations!!
(신규 과제) 독일 Merck 그룹의 지원을 받아 소듐 고체전해질 소재 연구를 수행하게 되었습니다.
(신규 과제) 글로벌 TOP 과제에 참여하여 리튬금속전지용 고성능 전해질 소재 개발 연구를 수행하게 되었습니다.
(신규 과제) 탑-티어 지원사업을 통해 KAIST-MIT 미래 에너지 이니셔티브 연구 센터 (AI-로보틱스 기반 에너지 소재 혁신)에 참여하여 연구를 수행하게 되었습니다.
May 2024
Dae-hyung's recent work on 'Nearly all-active-material cathodes free of nickel and cobalt for Li-ion batteries' with Dr. Eunryeol Lee and Prof. Jinhyuk Lee at McGill University was published in Energy & Environmental Science on March 27, 2024 (featured as a front cover, 헤럴드경제, 데일리안, 부산일보, 세계일보, IT조선, 전자신문, 동아사이언스, 조선비즈 등).
We have developed a high-performance next-generation lithium-ion battery cathode that eliminates the need for costly nickel and cobalt. This cathode(DRX) is based on manganese materials and incorporates multi-walled carbon nanotubes (MWCNT) to improve electronic conductivity and volume stability during battery operation. With an energy density of approximately 1050 Wh/kg, this new cathode design provides a 40% increase in energy density compared to traditional cathodes.
(신규 과제) LG화학의 지원을 받아 배터리 양극 소재 연구를 수행하게 되었습니다.
February 2024
Jaekyeong, Jinyeong and Ukseon won Excellence Award as a team 'Atomic Architects' at Materials - AI model presentation of 2024 Winter material informatics education in Korea Research Institute of Standards and Science (KRISS). Congratulations!!
(신규 과제) SK Ecoplant의 지원을 받아 배터리 재활용 관련 연구를 수행하게 되었습니다.
January 2024
Prof. Dong-Hwa Seo was invited at 48th International Conference and Exposition on Advanced Ceramics and Composites conference (ICACC 2024), January 31, 2024 at the Hilton Daytona Beach Resort and Ocean Center in Daytona Beach, Florida, USA and delivered a presentation on the topic of “Nanocomposite Engineering of Heterogeneous Mn-based Cation-Disordered Cathodes for High-Performance and Low-Cost Lithium-ion Batteries”.
Dr. Dong-Yeon Kim`s recent work on the bifunctional electrocatalysts for acidic overall water splitting with Prof. Jungki Ryu has been published in Advanced Materials! (연합뉴스, 부산일보, 뉴시스, 전자신문, 조선비즈, 월간수소경제 등)
This study unveils the synthesis of a robust, bifunctional electrocatalyst via the electrochemical evolution of Ru-based polyoxometalates into Si,W-codoped RuOx (RuSiW) for efficient acidic water splitting. Exploiting the synergistic effects of Si and W codoping, RuSiW catalyst achieves remarkable activity and stability for acidic hydrogen and oxygen evolution reactions.
November 2023
Dr. Hyun-woo Ha and Yoonjung Choi joined the group for Researcher. Welcome to CMDD lab!
October 2023
Prof. Dong-Hwa Seo was invited at the 6th International Conference on Molecular Simulation (ICMS 2023), October 9, 2023 at National Taiwan University, Taipei, Taiwan and delivered a presentation on the topic of "First-principles Study on the Stabilization of Oxidized Lattice Oxygen for High-Energy Li-Rich Cathodes".
Jae-Kyeong won the Korean Institute of Metals and Materials 2023 Fall Conference Excellence in Poster Award . Congratulations!!
Sang-Hyo Kim and Hyeonjong Lee joined the group for Undergraduate Research Internship. Welcome to CMDD lab!
(신규 과제) 포스코 미래기술연구원의 지원을 받아 세라믹 소재 합성을 위한 무인 자율 실험실 개발 및 구축 연구를 수행하게 되었습니다.
(신규 과제) 서울대학교, 홍익대학교, 차세대융합기술연구원과 KAIST 연구진으로 구성된 디지털연구혁신선도기관육성사업 "계층적 모듈 기반 무인 자율 실험실"에 참여해서 2026년까지 리튬이차전지 소재 개발을 위한 무인 자율 실험실을 구축하게 되었습니다.
September 2023
(신규 과제) 고려대학교, 화학연구원, 동국대학교와 KAIST 연구진으로 구성된 미래기술연구실 "멀티스케일 산소안정성 개선을 통한 초고안전성-고에너지밀도 양극소재 및 리튬이차전지 구현"에 참여해서 2028년까지 과충전시에도 안전한 양극소재 및 리튬이차전지에 대해 연구하게 되었습니다.
August 2023
Jae-Seung and Minjun won Samsung Global Technology Symposion (Samsung GTS) 2023 Excellence in Poster & Motivate Award and Innovate & Motivate Award, respectively. Congratulations!!
July 2023
(New Paper) You-Yeob's recent work on the thermally regenerative electrochemical cycles system with Prof. Hyun-Wook Lee has been published in Adv. Mater.! (울산매일신문, 경상일보, 등)
June 2023
Jae-Seung and Dea-Hyung won GCIM2023 Best Poster and Outstanding Poster Awards, respectively. Congratulations!!
May 2023
(New Paper) Ukseon's recent work on the new liquid electrolyte for safer Li-ion batteries with Dr. Minah Lee and Dr. Jayeon Baek has been published in Energy Environ. Sci.! This is featured on the front cover.
We propose molecular engineering of linear carbonates as a method for creating thermally stable, high-performance batteries. We use a tailored molecule, bis(2-methoxyethyl) carbonate (BMEC), which possesses a flash point 90°C higher than that of conventional electrolytes, yet still maintains the necessary quality for battery performance. The study shows that the new BMEC electrolyte enables long-lasting cycling of graphite and Ni-rich layered oxide electrodes for over 500 cycles in practical pouch cells. Additionally, the BMEC electrolyte effectively reduces heat and reactive-gas release under various abuse conditions, successfully preventing a thermal explosion in a 4 Ah pouch cell upon nail penetration.
(New Paper) Jae-Seung's recent work on electrostatic covalent organic frameworks (COFs) for improved Li metal batteries (LMBs) with Prof. Sang-Young Lee has been published in ACS Energy Letter!
We've developed molecular traps that help regulate electrostatic interactions between charged molecules, leading to enhanced battery performance. By incorporating bipyridine-based COFs into NCM811 cathodes and Li metal protective layers, our approach improves Li+ desolvation, reduces solvent decomposition, and stabilizes electrolyte anions. The outcome is an LMB that effectively utilizes the theoretical specific capacity of NCM811 while maintaining stable Li plating/stripping. Our pouch-type LMB full cell offers competitive gravimetric and volumetric energy densities (466.7 Wh/kgcell/1370.1 Wh/Lcell) under constrained cell configurations. Explore the potential of our COF molecular traps for the next generation of batteries!
(New Paper) Jae-Seung's recent work on the new concept of solid electrolytes for all-solid-state batteries with Prof. Kyung-Wan Nam & Prof. Yoon Seok Jung has been published in Nature Communications!
We have successfully developed halide nanocomposite solid electrolytes (HNSEs) ZrO2(-ACl)-A2ZrCl6 (A = Li or Na) using cost-effective materials. These innovative HNSEs showcase significantly enhanced ionic conductivities at 30°C, reaching up to 1.3 mS/cm for Li+ and 0.11 mS/cm for Na+, while offering improved compatibility with sulfide solid electrolytes. Our advanced mechanochemical synthesis method forms nanostructured networks that boost interfacial superionic conduction. Our fluorinated ZrO2−2Li2ZrCl5F HNSE outperforms current alternatives, maintaining Li+ conductivity while improving high-voltage stability and interfacial compatibility. Moreover, we've successfully tested a Li-In||LiNi0.88Co0.11Mn0.01O2 lab-scale cell (115 mAh/g after ~2000 cycles), demonstrating impressive performance and setting the stage for efficient, sustainable all-solid-state battery development.
Moving from UNIST to KAIST: A New Chapter for Our Research Group (May 1st, 2023)
We are excited to announce that our research group has officially moved from UNIST to join the Department of Materials Science and Engineering at the Korea Advanced Institute of Science and Technology (KAIST).
This transition provides us with unparalleled opportunities to access world-class facilities, resources, and expertise at KAIST. We are particularly looking forward to working with renowned professors and talented students at our new institution, contributing to the scientific excellence and innovation fostered by the department.
As we embark on this exciting new chapter, we express our gratitude to both UNIST and KAIST for their support during this transition.
March 2023
(New Paper) Eunryeol and Dong-Hwa's recent work with Prof. Jinhyuk Lee at McGill University and Prof. Hyun-Wook Lee at UNIST has been published in Advanced Materials! It has been featured on the front cover.
We reveal the multiphase heterogeneous nature of ultrahigh-energy Mn-based partially disordered Li-ion cathodes through combined experimental and computational studies. This fundamental understanding enables novel nanocomposite design, wherein a phase fraction of the nanocomposites is manipulated. Consequently, cathodes engineered via nanocomposite engineering exhibit superior reversible redox properties and improved cycle retention.
November 2022
서동화 교수가 ‘세계 상위 1% 연구자(HCR)’에 선정되었습니다. HCR은 분야별로 논문이 인용된 횟수를 정리해 매년 발표하는 ‘상위 1% 연구자’ 명단입니다. 올해 명단에 이름을 올린 한국 기관 소속 연구자는 70명(중복 제외 63명)입니다. 서동화 교수는 리튬이온전지를 비롯한 이차전지 분야의 전문가로 여러 분야에서 상당한 영향력을 갖는 우수 연구자로 뽑혔습니다. (연합뉴스, 매일경제 외 25개의 신문, 방송 매체에 보도됨)
Dong-Hwa is listed as one of Clarivate’s Highly Cited Researchers (HCR) 2022.
Highly Cited Researchers have demonstrated significant and broad influence reflected in their publication of multiple highly cited papers over the last decade. These highly cited papers rank in the top 1% by citations for a field or fields and publication year in the Web of Science™. Of the world’s population of scientists and social scientists, Highly Cited Researchers™ are 1 in 1,000.
September 2022
(New Paper) Dong-Yeon and Dong-Hwa's recent work with Prof. Soojin Park at POSTECH has been published in Advanced Functional Materials!
We developed an anode-free Li metal battery with an ion-conductive layer coated Cu current collector in typical carbonate-based electrolytes, which delivered exceptionally high discharge capacity retention. Our DFT calculations demonstrated the beneficial effect of Li hosting behavior of the ion-conductive layer.
July 2022
(New members) Jae Eun Joo joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
April 2022
(New members) Youngkwang Jung joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
(신규 과제) 한국에너지기술연구원, 한국원자력연구원, 한양대학교, 전남대학교, GIST, 부경대학교, 숙명여자대학교 등의 연구과 함께 산업통산자원부 주관의 "저탄소 고부가 전극 재제조 혁신기술개발사업"에 대해 5년간 연구하게 되었습니다.
(New Project) Our team with Prof. Hyun-Kon Song (ECHE, UNIST) will work on new organic electrolytes for Li-metal batteries funded by SAMSUNG Future technique development foundation ('22-'24 + 3 years)
(신규 과제) 삼성미래기술육성사업의 지원을 받아 UNIST 송현곤 교수님 (PI)과 함께 "리튬금속전지용 덴드라이트-프리 유기 얼음 전해질 ICE"에 대해 2(+3)년간 연구하게 되었습니다.
March 2022
(New members) Minjun Kwon, SeungHui Ham, and Jaekyeong Han joined the group as a PhD student.
(New members) Hojoon Kim, Yuseon Choi, and Ukseon Shin joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
(New Project) We are going to work on lithium-excess cathode materials for lithium-ion batteries funded by POSCO TJ Park Foundation (2022~2024).
January 2022
(New Project) We are going to work on cathode materials for lithium-ion batteries funded by LG Chem (2022~2023).
(New members) Seung Ho joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
(New facility) New glove box (KIYON), Mixer/Mill Machine (SPEX 8000D Dual Mixer/Mill), Spray Dryer (Yamato ADL311-A), and 48 more channels for Battery Cycler System (WonATech WBCS3000).
November 2021
(New paper) Dong-Yeon and Dong-Hwa's recent work with prof. Ji Wook Jang, prof. Youngsik Kim, prof. Seok Ju Kang at UNIST has been published in JACS Au! We performed a computational study on the catalytic reactions (HER and ORR) in Seawater batteries. [울산 MBC, 부산일보 등]
(Award) Sang-Wook received a Gold medal for ICAE Best Poster Award in 6th International Conference on Advanced Electromaterials (ICAE 2021).
(신규 과제) 현대자동차그룹-서울대 배터리 공동연구센터의 "전고체 배터리(SSB)" 분야에 참여하여 6년간 연구하게 되었습니다. (뉴스)
(New Project) Our team joined a joint research center of Hyundai Motor Group-Seoul National University to work on solid-state batteries (2021-2027).
October 2021
(신규 과제) 삼성미래기술육성사업의 지원을 받아 연세대학교 (PI: 정윤석 교수), 동국대학교 (co-PI: 남경완 교수) 연구진과 함께 "특이활성 계면전도를 통한 고이온전도성 고전압안정성 할라이드계 나노복합체 고체전해질 기반 전고체전지"에 대해 3년간 연구하게 되었습니다.
(New Project) Our team with Prof. Yoon Seok Jung at Yonsei University and Prof. Kyung-Wan Nam at Dongguk University will work on Halide-based Super ionic conducting solid electrolyte funded by SAMSUNG Future technique development foundation (2021-2024).
(Award) Dong-Hwa received POSCO Science Fellowship from POSCO TJ Park Foundation (2022~2023) [한경 뉴스]
September 2021
(New Paper) Our recent work with prof. Chae-Ryong Cho at Pusan National University has been published in Advanced Materials!
(New Project) We will work on lithium solid electrolytes funded by Samsung SDI (2021~2022).
(New facility) Two more robot arms (x-Arm 6 and u-Arm from Ufactory) have arrived. We will apply them to multi-purpose autonomous experimental systems.
(New members) Yoon-Seong Kim, Hyun-Woo Kim, and Seung-Bong Baek joined the group as a MS student.
Jinyeong Choi and Siheon Lee joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
August 2021
(신규 과제) 서울대학교, UNIST, 전남대, 한국표준과학연구원, 한밭대, KAIST 연구진으로 구성된 "인공지능-스마트랩 기반 산화물 고체전해질 혁신 연구실"에 참여해서 2025년까지 산화물계 고체전해질을 이용한 전고체 리튬 전지에 대해 연구하게 되었습니다.
(New Project) Our team with Prof. Kisuk Kang at Seoul National University will work on Super ionic conducting oxide solid electrolyte devise via machine learning and process automation funded by National Research Foundation of Korea (2021-2025).
July 2021
Seo-Young (MS 1st year) presented her experience working on Li-ion batteries field as a graduate student in front of the President, the ministers of Republic of Korea and representatives of korean battery companies in "the development strategy of K-battery" held in Ochang, Korea.
김서영 학생 (석사 1년)이 K-배터리 발전 전략보고회 'K-배터리, 세계를 차지(charge)하다!'에서 대통령, 각 장관, 이차전지 회사 대표들 앞에서 이차전지를 연구하는 대학원생의 경험을 발표하였습니다. 발전 전략 중 가장 핵심인 이차전지 전문인력 양성에 정부의 지속적인 투자가 기대됩니다. (관련 언론기사: 연합뉴스, 매일경제, 한국경제 등)
(New facility) One more liquid handler, Opentron OT-2 with 300ul & 1000ul auto pipetting module has arrived. We will develop autonomous laboratory for screening polymer materials funded by LG Chem.
June 2021
(New Project) Our proposal for "Material Research Data Platform Program (소재 연구데이터 플랫폼 사업단)" funded by National Research Foundation of Korea has been officially selected. CEMS lab will work on "Development of data-driven engineering for design of novel solid electrolyte materials (데이터 기반 고체전해질 소재 설계 기술 개발)" for next 7 years.
May 2021
(New Paper) Our recent work with prof. Jinhyuk Lee at McGill University and prof. Ju Li at MIT has been published in Advanced Energy Materials!
Development of disordered‐rocksalt (DRX) Li‐ion cathodes based on the percolation theory of Li diffusion has steered researchers to consider “Li‐excess” (x > 1.1 in LixTM2−xO2; TM = transition metal) as being critical for high performance. It is demonstrated that Li‐excess benefits are chemistry specific at the nanoparticle scale and that DRXs made with low‐voltage TMs do not require Li‐excess for high capacity.
(New facility) Liquid handler (ARA Handy 40) has just arrived. It will work for "Autonomous Li-ion BAttery Testing Robot SyStem (ALBATROSS)" and other projects.
March 2021
(New Paper) Our recent work with prof. Jaephil Cho has been published in Advanced Materials!
(New member) Dr. Dong-Yeon Kim has joined the group as a postdoc.
Jae-Seung Kim, Yoojong Park, and Youyeob Song have joined the group as a PhD student.
Seo-Young Kim, Min-Jeong Gong, and Hyun-Gi Lee have joined the group as a MS student.
Welcome to CEMS lab!
(New facility) The robot arm (Neuromeka Indy RP2 with Indyeye) has joined the group. It will work for "Autonomous Li-ion BAttery Testing Robot SyStem (ALBATROSS)" project.
Spec: 7 degree of freedom, +-175 deg for all joints, 1m/s speed, 5 kg playload, 1 um repeatability, vision sensor's processing time: 250 ms/image
January 2021
(New member) Yubin Chung has joined the group for Undergraduate Research Internship.
Welcome to CEMS lab!
September 2020
(New member) Chang-Dae Lee has joined the group as a PhD student. Jae-Seung Kim, Seo-Young Kim, Seung-Bong Baek, Min-Jeong Gong, Hyun-Gi Lee and Minjun Kwon have joined the group for Undergraduate Research Internship. Welcome to CEMS lab!
(New Project) Dong-Hwa receives mid-career researcher (중견연구) program of National Research Foundation of Korea (NRF). CEMS lab will work on "Development of new cation-disordered lithium-excess cathode materials with high capacity and cyclability for Li-ion batteries" for next 2.5 years.
August 8, 2020
(New Paper) Dong-Hwa's work from Samsung Research America and UNIST has been published in Advanced Energy Materials.
We develop a new class of mixed ionic–electronic conductors (MIECs) for a carbon‐free cathode (no liquid electrolyte) of a Li-air cell by combining first-principles calculations and experiments. The synthesized perovskite MIECs have both high electronic and lithium-ionic conductivities. The Li-air cell with an MIEC cathode delivers superior reversibility while avoiding the degradation associated with carbonaceous materials.
July 6, 2020
(New member) Dae Hyung Lee has joined the group as a MS student. Yoonseong Kim and Hyun Woo Kim have joined the group for Undergraduate Research Internship.
Eun Kyung Kang, Jong Oh Jeon, Hee Chang Lee have visited the group (July 6th~30th) for Summer Undergraduate Research Fellowship. Welcome to CEMS lab!
February 28, 2020
(New Paper) Dong-Hwa's recent work with prof. Ceder and Dr. Wang has been published in Science!
매일경제: 전기차 충전시간 확 줄인다…배터리 리튬이온 고속이동 원리 밝혀
UNIST news: 고속충전 배터리 속 리튬이온 움직임 실시간 추적 한다!
BNL news: Chasing Lithium Ions on the Move in a Fast-Charging Battery
LBNL news: One Step Closer to a Fast-Charging Battery
Science Daily: Chasing lithium ions on the move in a fast-charging battery
February 19, 2020
(New member) Sang Wook Park has joined the group as a PhD student. Welcome to CEMS lab!
January 10, 2020
Group members with prof. Gerbrand Ceder at the conference "Enabling Future of AI: Battery to Semiconductor", Chey Institute for Advanced Studies, Seoul, Republic of Korea
From left to right: Eunryeol Lee, Ji Hye Lim, prof. Gerbrand Ceder and prof. Dong-Hwa Seo
December 2, 2019
Dr. Dong-Hwa Seo has joined School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST) as an assistant professor.
(New member) Eunryeol Lee and Ji Hye Lim have joined the group as a PhD student. Welcome to CEMS lab!
November 26, 2019
Farewell with members of Advanced Materials Lab, Samsung Research America. Thanks for all help and support from AML team members for last two years!
June 19, 2019
Ceder group alumni at the 22nd International Conference on Solid State Ionics(SSI-22), PyeongChang, Korea
From left to right: Dr. Matteo Bianchini, Prof. Jae Chul Kim, Dr. Dong-Hwa Seo, Dr. Haegyeom Kim
March 14, 2018
Dr. Seo received IBA Early Career Award from the international Battery Materials Association (IBA) with significant contributions on "For outstanding contributions to the design of electrode and electrolyte materials by using combined atomistic modeling and machine/deep learning methods".
From left to right: Yong Yang (IBA Award Committee), Martin Winter (Chairman of the Board), Dong-Hwa Seo (IBA Early Career Awardee) and Dominique Guyomard (President of IBA)
From left to right: Kisuk Kang (IBA General Secretary) and Dong-Hwa Seo (IBA Early Career Awardee)
From left to right: Dong-Hwa Seo (IBA Early Career Award), Ryoji Kanno (IBA Research Award), Kuzhikalail M. Abraham (IBA Yeager Award), Claire Villevielle (IBA Early Career Award), Martin Winter (Chairman of the Board), Dominique Guyomard (IBA President)
June 2016
My recent Nature Chemistry paper is featured on News & Views of Nature Chemistry by Claude Delmas, LBNL News Center, Green Car Congress, Maekyung news paper and so on.
New Path Forward for Next-Generation Lithium-Ion Batteries (LBNL News Center)
Berkeley Lab researchers shed light on how lithium-rich cathodes work, opening the door to higher capacity batteries.
