发明名称 |
Nickelelectrode for alcaline accumulator |
摘要 |
A nickel electrode with a non-sintered support, for alkaline storage cells, has a porous three-dimensional conductive structure and an active material contg. beta nickel hydroxide particles, the novelty being that the hydroxide has one or more of the following characteristics: (a) an x-ray diffraction (103) line/(200) line intensity ratio of 0.95-1.15; (b) a coherence length (L) of 10-16 nm., where L = ( ( (100)<2>. (001)) (100) )<1/3> (001) = crystallite sizes calculated from the mid-height width of the (100) and (001) lines respectively; (c) a ratio of the sum of the areas of the RAMAN spectrum 3677-3697 and 3590-1610 cm.<-1> peaks to the area of the 3570-3590 cm.<-1> peak of 0.08-0.14; and (d) a ratio of the area of the RAMAN spectrum 501-k521 cm.<-1> peak to the area of the 450-470 cm.<-1> peak of 1.0-1.2. Also claimed are (i) a process for prepn., by pptn. from soln., of the hydroxide contained in the above electrode; (ii) a storage cell contg. the above electrode; and (iii) a storage battery contg. such cells. |
申请公布号 |
EP0730315(B1) |
申请公布日期 |
2000.06.07 |
申请号 |
EP19960400423 |
申请日期 |
1996.02.28 |
申请人 |
SAFT |
发明人 |
BERNARD, PATRICK;AUDRY, CLAUDETTE;LECERF, ANDRE;SENYARICH, STEPHANE |
分类号 |
H01M4/131;H01M4/1391;H01M4/32;H01M4/52;H01M4/76 |
主分类号 |
H01M4/131 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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