| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
(전기화학) EV/ESS용 대용량 이차전지 전극물질 개발 |
| 제목 |
Multi-scale Design of Si Anodes for Fast-charging Battery |
| 초록 |
Si anodes are expected to potentially reduce the weight of battery packs mounted on the electric vehicles as well as to extend the driving mile range with their high capacity while the chronic challenge of uncontrollable volume change of Si anodes has not been clearly addressed yet. Under this situation, charging the batteries in a few minutes seems to be impossible with electronically insulating Si materials. Herein, we demonstrate multi-scale solutions to above concerns by realizing the interconnected Si nanostructures as a proof-of-concept via a chemical vapor decomposition method and quasi-metallic bulk Si through the low-temperature reduction process in a scalable manner. Such original designs of Si anodes enable stable operation of Li-ion cells under near-practical conditions to give promise of Si-based fast-charging and high energy density battery. |
| 저자 |
류재건, 박수진
|
| 소속 |
POSTECH |
| 키워드 |
Si anode; fast-charging battery; nanostructure; doping
|
| E-Mail |
|
