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Novel graphite/TiO2 electrochemical cells as a safe electric energy storage system |
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| Authors: | Arjun Kumar Thapa Hiroyoshi Nakamura Nariaki Moriyama Hongyu Wang |
| Affiliation: | a Advanced Research Center, Saga University, Saga 840-0047, Japan b Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan c Ishihara Sangyo Co., Ltd., Yokkaichi 510-0841, Japan d State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China |
| Abstract: | A graphite/TiO2 full cell has been developed as a new safety energy storage system using a highly safety process. The crystal structures of the anatase TiO2 electrode have been investigated with respect to the performance of the electrodes. Due to the large anion intercalation into the graphite positive electrode, the possible charging potential can be raised to around 5.3 V against the Li/Li+ electrode, which is a higher charging voltage than lithium-ion batteries (maximum voltage is around 4.3 V vs. Li/Li+). In situ XRD measurements have been carried out on both the cathode and anode electrodes of the graphite/TiO2 cell during the charge process to elucidate the intercalation mechanism. |
| Keywords: | Electrochemical cell Graphite TiO2 Intercalation In situ XRD |
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