| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
Preparation and Electrochemical Characterization of Li1.1Nb0.9O2-y as a Negative Electrode Material for Lithium Secondary Batteries |
| 초록 |
In the present work, we report on the oxide Li1.1Nb0.9O2-y as a novel active material for application to the negative electrode of lithium secondary batteries. First principles calculations predicted that redox reactions of lithium ions on the Li1.1Nb0.9O2-y material occur at low potentials. This was subsequently confirmed experimentally by electrochemical measurements. The sample formulated as Li1.1Nb0.9O2-y was prepared by heating a mixture of powders of Li1.1Nb0.3O1.3 and NbO in a molar ratio of 6:3.6 in an alumina tube at 1000 oC in H2 for 60 hours. The structure of Li1.1Nb0.9O2-y was characterized by X-ray diffraction (XRD). Rietveld refinement of the collected data was performed using the Reflex (Accelrys Inc. Ver. 5.0) Rietveld (DBWS) code. Composite electrodes were used for charge/discharge tests and cyclic voltammetry (CV). |
| 저자 |
조용훈1, 정순기1, 정현철2, 황선호2, 유찬서3, 나강문3, 김양수3
|
| 소속 |
1순천향대, 2유림산업, 3한국기초과학지원(연) |
| 키워드 |
Lithium Secondary Batteries; Negative Electrode; First principles calculations
|
| E-Mail |
|
