| 发明名称 |
Rechargeable lithium cell and process for making an anode for use in the cell |
| 摘要 |
This invention relates to a rechargeable lithium cell comprises a cathode having a discharge potential not less than 2 V relative to a Li/Li<+> anode, an anode capable of doping and un-doping lithium and made of a material comprising a lithium titanate having a spinnel structure and represented by the general formula, LixTiyO4 wherein 0.8</=x</=1.4 and 1.6</=y</=2.2, a separator separating the cathode and the anode from each other, and an electrolytic solution impregnated at least in the separator and dissolving a lithium salt in a non-aqueous solvent. When subjected to X-ray diffraction analysis, the material has peaks at least at 4.84 +/- 0.02 angstroms, 2.53 +/- 0.02 angstroms, 2.09 +/- 0.02 angstroms and 1.48 +/- 0.02 angstroms and a ratio of a peak intensity at 4.84 +/- 0.02 angstroms and a peak intensity at 1.48 +/- 0.02 angstroms of 100:30 +/-10. The material may consist of the lithium titanate or mixed crystals of the lithium titanate and rutile-type titanium dioxide. A process for making the anode is also described. |
| 申请公布号 |
EP0617474(B1) |
申请公布日期 |
1997.07.30 |
| 申请号 |
EP19940301864 |
申请日期 |
1994.03.16 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KOSHIBA, NOBUHARU;TAKATA, KENICHI;ASAKA, EMI (NEE NISHIMURA);NAKANISHI, MAKOTO |
| 分类号 |
C01B31/02;H01M4/131;H01M4/1391;H01M10/05;H01M10/0525;H01M10/0568 |
主分类号 |
C01B31/02 |
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