| 发明名称 |
Akkumulator mit nichtwässrigem Elektrolyt und Verfahren zur Herstellung von positivem Elektrodenmaterial |
| 摘要 |
The present invention employ a positive electrode comprising an active material represented by the general formula: LiyNi1-xMexO2 where Me is any one of Ti, V, Mn and Fe; the numbers of moles of x and y: 0.2 < y </= 1.3; when Me is Ti, V, or Fe, 0 < x < 0.5; and when Me is Mn, 0 </= x < 0.6; having a hexagonal crystalline structure and the lattice constants, a0 being in the range of 2.83 to 2.89 ANGSTROM , c0 being in the range of 14.15 to 14.31 ANGSTROM as identified by X-ray diffraction pattern; or where y being in the range of 0.2 < y < 1.0; when Me is Ti, V, or Fe, 0 < x < 0.5; and when Me is Mn, 0 </= x < 0.6; or where y being in the range of 1.0 </= y </= 1.3; when Me is Ti, V, or Fe, 0 < x < 0.5; and when Me is Mn 0 </= x </= 0.3. Particularly. the use of an active material represented by the general formula: LiyNi1-xMexO2 where Me is Mn; the numbers of moles of x and y: 1.0 </= y </= 1.3 and 0 </= x </= 0.3 having the lattice constants: a0 being in the range of 2.87 to 2.89 ANGSTROM ; c0 being in the range of 14.15 to 14.25 ANGSTROM ; and the ratio in the diffraction peak intensity of the face (006) to the face (101) indicated by the hexagonal Miller indices, i.e., (006)/(101) being not higher than 0.60; and the magnitude of a unit cell volume being in the range of 101 to 103 ANGSTROM <3> enables attainment of further enhanced characteristics. The active material represented by the general formula: LiyNi1-xMnxO2 where the numbers of moles of x and y are 0 </= x </= 0.3 and 1.0 </= y </= 1.3 is synthesized by employing as starting materials an amount of a compound of divalent manganese corresponding to the number of atomic moles of Mn indicated by x, an amount of at least one nickel compound selected from the group consisting of Ni(OH)2 and NiCO3 corresponding to the number of atomic moles of Ni indicated by 1-x, and an amount of at least one lithium compound selected from the group consisting of Li2CO3 and LiNO3 corresponding to the number of atomic moles of Li indicated by y, predrying said starting materials, then subjecting said dried materials to first heat-treatment, passing through normal temperature to produce an intermediate, and subjecting said intermediate to the second heat-treatment at a different temperature than that of the first heat-treatment, with the heat-treatments being conducted in an oxidizing atmosphere of air or oxygen. |
| 申请公布号 |
DE69314818(D1) |
申请公布日期 |
1997.12.04 |
| 申请号 |
DE1993614818 |
申请日期 |
1993.02.05 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., KADOMA, OSAKA, JP |
发明人 |
NITTA, YOSHIAKI, OSAKA-SHI, JP;HARAGUCHI, KAZUNORI, JOTO-KU, OSAKA-SHI, JP;KOBAYASHI, SHIGEO, YAWATA-SHI, JP;OKAMURA, KAZUHIRO, HIGASHIOSAKA-SHI, JP;OHTA, AKIRA, OSAKA-SHI, JP |
| 分类号 |
C01G53/00;H01M4/131;H01M4/48;H01M4/485;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/052;H01M10/0525;H01M10/0568;H01M10/0569;H01M10/36 |
主分类号 |
C01G53/00 |
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