| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-환경.에너지 |
| 제목 |
Ultrahigh-Energy-Density Lithium-Ion Batteries Based on a High-Capacity Anode and a High-Voltage Cathode with an Electroconductive Nanoparticle Shell |
| 초록 |
The combination of high-capacity anodes and high-voltage cathodes has garnered a great deal of attention in the pursuit of high-energy-density lithium-ion batteries. As a facile and scalable electrode-architecture strategy to achieve this goal, a direct one-pot decoration of high-capacity silicon (Si) anode materials and of high-voltage LiCoO2 (LCO) cathode materials is demonstrated with colloidal nanoparticles composed of electroconductive antimony-doped tin oxide (ATO). The ATO nanoparticles enhance electronic conduction in the LCO and Si electrode materials and mitigate unwanted interfacial side reactions between the electrode materials and liquid electrolytes. The ATO-coated LCO materials enable the construction of a high-mass-loading cathode and suppress the dissolution of cobalt . In addition, the ATO-coated Si anodes exhibit stable capacity retention upon cycling. Integration of the high-voltage ATO-LCO cathode and high-capacity ATO-Si anode into a full cell configuration brings unprecedented improvements in the volumetric energy density and in the cycling performance. |
| 저자 |
이은호1, 이상영2
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| 소속 |
1강원대, 2울산과학기술대 |
| 키워드 |
lithium-ion batteries; silicon; lithium cobalt oxide; antimony-doped tin oxide; electrode materials
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| E-Mail |
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