자료유형
전체 선택해제
총 13건 검색
본문검색 결과만 보기
-
Employment of Carbonaceous Materials for the Anode of Lithium Secondary Battery
Joong Kee Lee, Byung Won Cho 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2002, Vol.3 No.3 6 155-163 (9 pages)
리튬이차전지는 21세기 정보화 및 환경친화적 사회를 뒷받침하는 핵심적인 에너지저장 및 동력원으로 사용되고 있어 소형이면서도 고출력, 장수명,대용향 전지 개발을 목표로 연구가 진행되고 있다. 현재 리튬이차전지는 기존의 휴대용 전화기,notebook의 구동전원 이외에도 새로운 CDMA, PDAd의 전원으로 채용되기 때문에 소형이면서도 무게가 가벼운 리튬이차전지의 수요는 앞으로도 꾸준하게 10%이상의 시장이 확대되어질 것으로 예상되고 있다. -
The Polyaniline Electrode Doped with Li Salt and Protonic Acid in Lithium Secondary Battery
Ryu. Kwang-Sun, Kim. Kwang-Man, Hong. Young-Sik, Park. Yong-Joon, Jang. Soon-Ho 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2002, Vol.23 No.8 1144-1148 (5 pages)
-
Three-dimensional porous graphene materials for environmental applications
Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 한국탄소학회 Carbon Letters 13 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 1 1-13 (13 pages)
Porous materials play a vital role in science and technology. The ability to control their pore structures at the atomic, molecular, and nanometer scales enable interactions with atoms, ions and molecules to occur throughout the bulk of the material, for practical applications. Three-dimensional (3D) porous carbon-based materials (e.g., graphene aerogels/hydrogels, sponges and foams) made of graphene or graphene oxide-based networks have attracted considerable attention because they offer low... -
Study on urea precursor effect on the electroactivities of nitrogen-doped graphene nanosheets electrodes for lithium cells
Ki-Yong Kim, Yongju Jung, Seok Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 5 40-46 (7 pages)
Nitrogen-atom doped graphene oxide was considered to prevent the dissolution of polysulfide and to guarantee the enhanced redox reaction of sulfur for good cycle performance of lithium sulfur cells. In this study, we used urea as a nitrogen source due to its low cost and easy preparation. To find the optimum urea content, we tested three different ratios of urea to graphene oxide. The morphology of the composites was examined by field emission scanning electron microscope. Functional groups and... -
Effects of phosphorus content and operating temperature on the electrochemical performance of phosphorus-doped soft carbons
Eun Hee Kim and Yongju Jung 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.4 7 277-281 (5 pages)
A series of high capacity soft carbons with different phosphorus contents were successfully prepared by carbonizing petroleum cokes treated with hypophosphorous acid at 900°C. The effect of phosphorus content on the electrochemical performance of the soft carbons was extensively investigated. The P-doped soft carbons exhibited greatly enhanced discharge capacities and outstanding rate capabilities with increasing phosphorus content. In addition, the influence of temperature on the... -
Effect of microporosity on nitrogen-doped microporous carbons for electrode of supercapacitor
Eun-A Cho, Seul-Yi Lee, Soo-Jin Park 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 9 210-213 (4 pages)
Nitrogen-doped microporous carbons were prepared using a polyvinylidene fluoride/melamine mixture. The electrochemical performance of the nitrogen-doped microporous carbons after being subjected to different carbonization conditions was investigated. The nitrogen to carbon ratio and specific surface area decreased with an increase in the carbonization temperature. However, the maximum specific capacitance of 208 F/g was obtained at a carbonization temperature of 800°C because it produced the...
