| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 |
20권 1호, p.531 |
| 발표분야 |
에너지 |
| 제목 |
Lithium Battery Using Porous Carbon/Sulfur Composite Cathode |
| 초록 |
Sulfur (S) has many valuable characteristics, such as a low equivalent weight, extremely low cost, and nontoxicity. In a Li-S cell, the potential corresponds to 1/2 ~ 2/3 of the potential exhibited by a typical positive electrode for a Li-ion cell (3.2 V ~ 4.2 V). However, this low potential is outweighed by the 1672 mA h g-1 theoretical specific capacity, which is the highest of all known solid cathode materials. To improve the electrochemical performance of Li-S rechargeable batteries, tunable porous carbon materials, which are known as carbide-derived carbons (CDCs), are employed as adsorbents and conductive matrices for the cathodic sulfur materials. A new assembly for Li-S cells was developed by introducing multi-layer membranes as separators. The utilization of the multi-layer membranes enables the minimization of the shuttle effect by expanding the distance between the separators and blocking the penetration of the polysulfide. |
| 저자 |
연순화1, 김지은1, 안욱2, 임성남3, 신경희1
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| 소속 |
1한국에너지기술(연), 2연세대, 3한국과학기술원 |
| 키워드 |
리튬전지; 리튬황전지; 다공성 카본; 분리막
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| E-Mail |
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| 원문파일 |
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