> On Campus > Hanyangians
New Battery Technology for Generations to Come▪ Sun Yang-kook, a Professor in the Department of Energy Engineering ▪
Oh Seung-seok  |  hjournal@hanyang.ac.kr
폰트키우기 폰트줄이기 프린트하기 메일보내기 신고하기
[329호] 승인 2016.03.02  
트위터 페이스북 미투데이 요즘 네이버 구글 msn

Lithium-air batteries will bring about change over a lifetime. Imagine an electric car and a smart phone that require charging only once a week. Improving energy efficiency will have a positive effect on the environment. “It might be difficult to commercialize at the moment but research on ‘LithiumOxygen Batteries based on Lithium Superoxide’could serve as a stepping stone for other researchers,” said Sun Yang-kook, a Professor in the Department of Energy Engineering at Hanyang University(HYU).

The Lithium-ion battery is a rechargeable battery in which the lithium ions move from the negative to the positive electrode when charging. It is commonly used in our daily lives; in smart phones, cameras, and even in electronic cars. The Lithium-air battery is a next generation battery that has five to ten times more energy density than a Lithium-ion battery. It is also made up of graphite which is much cheaper than the manganese or cobalt used for Lithium-ion batteries. Unfortunately, the downside is that it is unable to be recharged more than 10 times. 
However, Sun’s new Lithium-Oxygen battery’s negative and positive poles are made up of catalytic iridium nanoparticles on graphene, which can resolve the problem of low energy efficiency. Having theoretical specific surface area, graphene can maximize the lithium-Oxygen Battery capacity. Additionally, minimizing electrical resistance can increase the energy efficiency. 
Regarding his research, Sun said, “In the past, the primary cell category was so regulated that only small businesses with low technical skills were allowed in the market. But in 1991, SONY developed a rechargeable battery and that made the government cut the regulatory red tape. From that point on, major companies began their research on batteries. Being a part of a research team got me interested in this field because I could tell it would be a promising area in the future.”
Society’s concern for the environment also played an important role in the development. “As environmental issues worsen, the matter at hand is how to efficiently use energy without harming our surroundings. For instance, we know that exhaust emissions from cars contribute to air pollution. But, ironically, cars are a necessity these days. Then the only solution is to develop CO2-free technology. The earth doesn’t only belong to our generation. It should be preserved for generations to come,” Sun said.
Oh Seung-seok의 다른기사 보기  
폰트키우기 폰트줄이기 프린트하기 메일보내기 신고하기
트위터 페이스북 미투데이 요즘 네이버 구글 msn 뒤로가기 위로가기
이 기사에 대한 댓글 이야기 (0)
자동등록방지용 코드를 입력하세요!   
- 200자까지 쓰실 수 있습니다. (현재 0 byte / 최대 400byte)
- 욕설등 인신공격성 글은 삭제 합니다. [운영원칙]
이 기사에 대한 댓글 이야기 (0)
School Violence, Reaching Beyond the School Walls
Students’ Right to Education: Well-Reflected Through Online Learning Services?
Beware of the Orange Warning: Anyone Could Be a Victim of Messenger Phishing
Listen to the Superheroes: What Superpowers Do You Want to Have?
The Stalking Punishment Act: A 22-Year Step Forward
A Way of Making Every Day Count: The Miracle Morning
Find a Bookstore that Suits Your Taste
Hanyang University’s First MUN: The Start of a New Chapter
Go Away COVID-19! The Hanyang Goblins Are Here!
Making Mobility Easy: How One of Our Very Own Became the CEO of a Mobility Startup
About HJSubscriptionTo HJFree BoardContact UsPrivacy PolicyYouth Protection Policy
Executive Editor Professor Yun Seong-won | Editor-in-Chief Lee Jung-joo Youth Protection Officer : Lee Jung-joo
Seoul Campus, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Rep. of KOREA | Tel_02 2220 4774
Ansan Campus, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan Kyeonggi-do, 426-791, Korea
Copyright © 2007 The Hanyang Journal. All rights reserved.