Women Scientists at the Forefront of Energy Research: A Virtual Issue, Part 3

Nam-Soon Choi (Photo courtesy of Nam-Soon Choi)
 Electrolyte systems—my current field of research—create complex interactions with electrodes in a battery and significantly affect the battery’s performance. The reason I was inspired by the not-so-simple mechanism of battery electrolytes and continued my research in this field can be traced back to 2004, when I was working as a senior researcher after completing my doctoral program, at the R&D center of Samsung SDI—a company specializing in battery technology. I took part in a project for developing high-energy batteries with a team of experts responsible for the design, manufacture, and evaluation of battery systems, and our research focused not only on the characteristics of electrolytes but also on the suitability of the developed electrolytes toward electrodes and manufacturing process. Through this process, I developed fluoroethylene carbonate, which is the most potent additive for improving the performance of high-capacity Si anodes. This experience of working with industry experts on the project enabled me to evolve material development strategies for overcoming the limitations of existing electrolytes.
Based on personal experience, I would like to tell younger researchers in the field the following four points which I consider important: (1) For practical use of a new material through R&D, “it is more important to see the woods instead of the tree.” (2) You must have the flexibility to accept that your research outcome may not be perfect. Developing a new material and accurately interpreting the functions of that material can only be achieved through continued research and taking into account the new advances made by several researchers. (3) The same material may vary in its performance depending on the system manufacturing and evaluation conditions. Therefore, transparency must be maintained during research. (4) Although research focusing on performance improvement is important, efforts to understand the degradation behavior of systems and materials could be a foundation for scientific advancement.
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February 7th, 2022

[인터뷰] 산업계에서 익힌 연구철학으로 전지 연구를 선도하다

2020년 국제저널인 〈ACS 에너지 레터(ACS Energy Letters)〉에 에너지 분야를 이끄는 여성 과학자로 소개됐다. 바로 최남순 KAIST 생명화학공학과 교수다. 5년여의 회사 […]

November 29th, 2021

[News coverage] Development of technology of electrolyte additives to improve the cycle performance of lithium metal batteries

February 15th, 2021

*[Nature Communications] Prof. Nam-Soon Choi’s group reported “Replacing conventional battery electrolyte additives with dioxolone derivatives for high-energy-density lithium-ion batteries”

충방전 횟수·고속충전 늘어나도 대용량 유지하는 새 전기차 배터리 첨가제 개발 (동아사이언스)   리튬이온 전지에 미량의 첨가제를 넣어 400회 충방전한 뒤에도 […]

December 8th, 2020

Women Scientists at the Forefront of Energy Research: A Virtual Issue, Part 3

 Women Scientists at the Forefront of Energy Research: A Virtual Issue, Part 3 Nam-Soon Choi (Photo courtesy of Nam-Soon Choi) […]

August 19th, 2020

[News coverage] 600km driving on a 5-minute charge… Launching development of lithium metal batteries for electric vehicles

April 30th, 2020

*[Advanced Energy Materials] Prof. Choi’s group reported “An Anti-Aging Electrolyte Additive for High-Energy-Density Lithium-Ion Batteries”

UNIST, 활성산소 제거해 고용량 배터리 수명·성능 개선 (울산=연합뉴스) 허광무 기자 = 울산과학기술원(UNIST) 연구진이 ‘활성산소’를 제거해 고용량 리튬 이온 배터리의 수명과 […]

March 17th, 2020

*[Advanced Energy Materials] Prof. Nam-Soon Choi’s group reported “Cyclic Aminosilane-Based Additive Ensuring Stable Electrode–Electrolyte Interfaces in Li-Ion Batteries.”

UNIST, 배터리 성능 획기적 개선 새 전해액 시스템 개발           <리튬이온전지 용량과 수명을 늘릴 수 있는 […]

December 18th, 2019

*[Nano Energy] Prof. Nam-Soon Choi’s group reported Fluorine-incorporated interface enhances cycling stability of lithium metal batteries with Ni-rich NCM cathodes.

UNIST, 고농축 전해액시스템 개발… 고용량 전지개발 기여 <전기차용 고용량 전지를 만들 수 있는 새로운 전해액시스템을 개발한 최남순 교수(왼쪽)와 곽상규 UNIST […]

May 17th, 2019

*[Advanced Materials] Our group’s article was featured on the outside back cover.

In Special Issure : Advancing Materials Science ​and Technology at UNIST. May 17, 2019   Related paper :  Scavenging Materials to Stabilize […]

April 4th, 2019

*[Advanced Energy Materials] Prof. Nam-Soon Choi’s group reported Metamorphosis of seaweeds.

Related paper :  Metamorphosis of seaweeds into multitalented materials for energy storage applications( Development of technology to inhibit high temperature […]