-
公开(公告)号：EP0702421B1
公开(公告)日：1998-12-16
申请号：EP95201887.7
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
-
2.发明公开Lithiated nickel dioxide and secondary cells prepared therefrom 无效Lithiumhaltiges Nickeldioxid和daraus hergestellteSekundärzellen
公开(公告)号：EP0702421A1
公开(公告)日：1996-03-20
申请号：EP95201887.7
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
摘要： Lithiated nickel dioxide cathode-active materials for electrochemical cells having the formula Li x Ni 2-x-y M y O 2 , with x being between about 0.8 and about 1.0, M being one or more metals selected from cobalt, iron, chromium, titanium, manganese and vanadium, and y being less than about 0.2, with the proviso that y is less than about 0.5 for colbalt, which material is substantially free of lithnium hydroxide and lithium carbonate. The materials are prepared by providing a substantially homogeneous dry intermediate mixture of a starting material containing a nickel compound selected from nickel oxide, nickel hydroxide, and mixtures thereof, and optionally including one or more oxides or hydroxides of a transition metal selected from cobalt, iron, chromium, titanium, manganese and vanadium, together with between about a 10 and about a 25% stoichiometric excess of lithium hydroxide. The mixture is heat treated at a temperature above about 600°C in an atmosphere substantially free of carbon dioxide and having a partial pressure ratio of oxygen to water vapor greater than about 15, after which any lithium hydroxide or lithium carbonate present in the mixture is removed. Thermally stable lithiated nickel dioxide having a BET surface area less than about 3.0 m 2 /g, and is also disclosed, as well as electrochemical cells prepared from the disclosed lithiated nickel dioxides.
摘要翻译： 具有式LixNi2-x-yMyO2的电化学电池的锂化二氧化镍阴极活性材料，x在约0.8至约1.0之间，M是选自钴，铁，铬，钛，锰和钒中的一种或多种金属，以及 y小于约0.2，条件是对于钴，y小于约0.5，该材料基本上不含氢氧化锂和碳酸锂。 通过提供含有选自氧化镍，氢氧化镍及其混合物的镍化合物的原料的基本均匀的干燥中间体混合物，并任选地包括一种或多种选自钴，铁的过渡金属的氧化物或氢氧化物， ，铬，钛，锰和钒，以及大约10至大约25％的化学计量过量的氢氧化锂。 混合物在大约600℃的温度下在基本上不含二氧化碳的气氛中进行热处理，并且氧气与水蒸气的分压比大于约15，此后混合物中存在的任何氢氧化锂或碳酸锂是 除去。 具有小于约3.0m 2 / g的BET表面积的热稳定的锂化二氧化镍，并且还公开，以及由所公开的锂化二氧化镍制备的电化学电池。
-
公开(公告)号：EP0468942B1
公开(公告)日：1997-01-15
申请号：EP91850075.2
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
-
4.发明公开Lithiated nickel dioxide and secondary cells prepared therefrom 失效锂电池Nickeldioxid和daraus hergestellte电镀Sekundärelemente。
公开(公告)号：EP0468942A2
公开(公告)日：1992-01-29
申请号：EP91850075.2
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
摘要： Lithiated nickel dioxide cathode-active materials for electrochemical cells having the formula Li x Ni 2-x-y M y O₂, with x being between about 0.8 and about 1.0, M being one or more metals selected from cobalt, iron, chromium, titanium, manganese and vanadium, and y being less than about 0.2, with the proviso that y is less than about 0.5 for cobalt, which material is substantially free of lithium hydroxide and lithium carbonate. The materials are prepared by providing a substantially homogeneous dry intermediate mixture of a starting material containing a nickel compound selected from nickel oxide, nickel hydroxide, and mixtures thereof, and optionally including one or more oxides or hydroxides of a transition metal selected from cobalt, iron, chromium, titanium, manganese and vanadium, together with between about a 10 and about a 25% stoichiometric excess of lithium hydroxide. The mixture is heat treated at a temperature above about 600°C in an atmosphere substantially free of carbon dioxide and having a partial pressure ratio of oxygen to water vapor greater than about 15, after which any lithium hydroxide or lithium carbonate present in the mixture is removed. Thermally stable lithiated nickel dioxide having a BET surface area less than about 3.0 m²/g, and is also disclosed, as well as electrochemical cells prepared from the disclosed lithiated nickel dioxides.
摘要翻译： 具有式LixNi2-x-yMyO2的电化学电池的锂化二氧化镍阴极活性材料，x在约0.8至约1.0之间，M是选自钴，铁，铬，钛，锰和钒中的一种或多种金属，以及 y小于约0.2，条件是对于钴而言，y小于约0.5，该材料基本上不含氢氧化锂和碳酸锂。 通过提供含有选自氧化镍，氢氧化镍及其混合物的镍化合物的原料的基本均匀的干燥中间体混合物，并任选地包括一种或多种选自钴，铁的过渡金属的氧化物或氢氧化物， ，铬，钛，锰和钒，以及大约10至大约25％的化学计量过量的氢氧化锂。 混合物在大约600℃的温度下在基本上不含二氧化碳的气氛中进行热处理，并且氧气与水蒸气的分压比大于约15，此后混合物中存在的任何氢氧化锂或碳酸锂是 除去。 具有小于约3.0m 2 / g的BET表面积的热稳定的锂化二氧化镍，并且还公开，以及由所公开的锂化二氧化镍制备的电化学电池。
-
公开(公告)号：EP0468942B2
公开(公告)日：1999-12-01
申请号：EP91850075.2
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
-
公开(公告)号：EP0468942A3
公开(公告)日：1993-01-20
申请号：EP91850075.2
申请日：1991-03-25
CPC分类号： H01M4/485 , C01G53/42 , C01G53/50 , C01P2002/54 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587
摘要： Lithiated nickel dioxide cathode-active materials for electrochemical cells having the formula Li x Ni 2-x-y M y O₂, with x being between about 0.8 and about 1.0, M being one or more metals selected from cobalt, iron, chromium, titanium, manganese and vanadium, and y being less than about 0.2, with the proviso that y is less than about 0.5 for cobalt, which material is substantially free of lithium hydroxide and lithium carbonate. The materials are prepared by providing a substantially homogeneous dry intermediate mixture of a starting material containing a nickel compound selected from nickel oxide, nickel hydroxide, and mixtures thereof, and optionally including one or more oxides or hydroxides of a transition metal selected from cobalt, iron, chromium, titanium, manganese and vanadium, together with between about a 10 and about a 25% stoichiometric excess of lithium hydroxide. The mixture is heat treated at a temperature above about 600°C in an atmosphere substantially free of carbon dioxide and having a partial pressure ratio of oxygen to water vapor greater than about 15, after which any lithium hydroxide or lithium carbonate present in the mixture is removed. Thermally stable lithiated nickel dioxide having a BET surface area less than about 3.0 m²/g, and is also disclosed, as well as electrochemical cells prepared from the disclosed lithiated nickel dioxides.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.013 秒)
