|
|||||
|
|
Constructing a novel and safer energy storing system using a graphite cathode and a MoO3 anode |
|
| Authors: | Nanda Gunawardhana Gum-Jae ParkNikolay Dimov Arjun Kumar ThapaHiroyoshi Nakamura Hongyu WangTatsumi Ishihara Masaki Yoshio |
| Affiliation: | a Advanced Research Center, Saga University, 1341 Yoga-machi, Saga 840-0047, Japan b Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan c Department of Chemistry and Applied Chemistry, Saga University, 1 Honjo, Saga 840-8502, Japan d State Key Laboratory Chinese Academy of Sciences, Changchun 130022, China |
| Abstract: | A cell employing a graphite cathode and a molybdenum (VI) oxide (MoO3) anode is investigated as a possible energy storage device. Graphite cathode allows raising the voltage well above the cathode materials of LIBs without causing safety issues. The bottom potential of this anode is 2.0 V vs. Li/Li+, which is well above the lithium plating potential. Pulse polarization experiment reveals that no lithium deposition occurs, which further enhances the safety of the graphite/MoO3 full cell. Charge/discharge mechanism of this system results from intercalation and de-intercalation of the PF6− in the cathode (KS-6) and Li+ in the anode (MoO3). This mechanism is supported by in situ X-ray diffraction data of the graphite/MoO3 cell recorded at various states of charge. |
| Keywords: | Safety of batteries Graphite cathode Molybdenum oxide anode Intercalation/de-intercalation Pulse polarization |
| 本文献已被 ScienceDirect 等数据库收录！ | |