2013 Fiscal Year Final Research Report
Development of vanadate glass as a new cathode material for secondary batteries
| Project/Area Number |
23550229
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Inorganic industrial materials
|
|---|
| Research Institution | Tokyo Metropolitan University |
|---|
Principal Investigator |
KUBUKI Shiro 首都大学東京, 理工学研究科, 准教授 (90321489)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
NISHIDA Tetsuaki 近畿大学, 工学部, 教授 (10112286)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 二次電池 / 正極材料 / バナジン酸塩ガラス / メスバウアー分光法 |
|---|
| Research Abstract |
A relationship between local structure and electrical conductivity of new vanadate glasses was investigated by 57Fe-Mossbauer spectroscopy, X-ray diffractometory(XRD), Fourier transformed infrared spectroscopy(FT-IR) and DC four- and two-probe method. It was revealed that a coin cell containing isothermally annealed 15Li2O-10Fe2O3-5P2O5-70V2O5 glass as a cathodeactive material showed high capacity of 500mAh/g. The higher electrical performance was observed at least 8 cycles. We could successfully develope a new vanadate glass exhibiting the higher electrical performance when it is applied as a cathode active materialof secondary battery.
|
Research Products
(47 results)
