| 학회 |
한국재료학회 |
| 학술대회 |
2013년 봄 (05/23 ~ 05/24, 여수 엠블호텔(THE MVL)) |
| 권호 |
19권 1호 |
| 발표분야 |
C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 |
ELECTROCHEMICAL PERFORMANCE OF LITHIUM–SILICON ALLOY SYNTHESIZED BY MECHANICAL ALLOYING FOR USE IN LITHIUM SECONDARY BATTERIES |
| 초록 |
Graphite is the current choice as an anode material for commercial Li-ion batteries owing to its long cycle life and low cost. However, graphite has relatively low capacity (~375 mAh/g), thus its use is limited to low-energy-density batteries. In recent years, alternative anode materials with high energy density and long cycle life have been extensively studied for applications such as electric vehicles and energy-storage systems. In particular, alloy anode materials are a promising prospect owing to their safety as well as high capacity. In this study, Li–Si alloy powders with metastable phases were synthesized by mechanical alloying. In order to identify the various sample phases, X-ray diffraction (XRD) analysis was conducted on the ball-milled samples. The electrochemical properties of these powders were investigated to ascertain their suitability as anode active materials for use in Li secondary batteries. Detailed electrochemical results such as the effects of the alloy composition and the particle size on the electrochemical properties of the samples will be discussed later. |
| 저자 |
PARK Hye Won1, SONG Jung-Hoon2, CHOI Heekyu1, LIM Hyung-Tae1
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| 소속 |
1창원대, 2POSCO 소재사업실 |
| 키워드 |
Lithium–silicon alloy; Mechanical alloying; Lithium batteries; Anode materials
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| E-Mail |
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