SKKU Prof. Yi, Gi Ra, Develop the highest level of Rechargeable battery electrode technology that combined nanoparticles
- Engineering
- Hit5824
- 2015-11-03
SKKU and Yonsei University research team(Gi ra Yi, Jong Hyeok Park) achieved Ultrahigh Power and Cyclability of LiFePO4 supported by the NRF of Korea Grant funded by the Ministry of Science and KANEKA/SKKU Incubation Center(The Director : Yong Soon Bu)
Surface carbon coating to improve the inherent poor electrical conductivity of lithium iron phosphate (LiFePO4, LFP) has been considered as most efficient strategy.
They also report one of the conventional methods for LFP but exhibiting a specific capacity beyond the theoretical value, ultrahigh rate performance, and excellent long-term cyclability: the specific capacity is 171.9 mAh/g (70 μm-thick electrode with ∼10 mg/cm2 loading mass) at 0.1 C (17 mA/g) and retains 143.7 mAh/g at 10 C (1.7 A/g) and 95.8% of initial capacity at 10 C after 1000 cycles.
This conformal carbon coating approach can be a promising strategy for the commercialization of LFP cathode in lithium ion batteries.
This study was published in International celebrated journal ‘ Nano Letter’(Citation Index : 13,592)