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1. 发明申请

WO1997037934A1 METHOD OF PREPARATION OF LITHIUM MANGANESE OXIDE SPINEL 审中-公开
标题翻译：锂锰氧烷磁珠的制备方法
公开(公告)号：WO1997037934A1
公开(公告)日：1997-10-16
申请号：PCT/US1997005464
申请日：1997-04-02
申请人： DURACELL, INC. , WANG, Enoch, I. , BOWDEN, William, L. , GIONET, Paul
发明人： DURACELL, INC.
IPC分类号： C01G45/00
CPC分类号： H01M4/505 , C01G45/1221 , C01P2002/32 , C01P2006/40 , H01M10/0525
摘要： A method of making lithium manganese oxide of spinel structure is disclosed. The method involves the step of prelithiating a manganese oxide by reacting it with lithium hydroxide or lithium salt and then reacting the prelithiated manganese oxide in a second step at elevated temperature to form a lithium manganese oxide spinel. In a specific embodiment manganese dioxide powder is reacted with lithium hydroxide to prelithiate the manganese dioxide and the prelithiated manganese dioxide is separated from the reaction mixture and heated and reacted with lithium carbonate at elevated temperature to convert it to lithium manganese oxide spinel. The spinel product may be used advantageously in secondary (rechargeable) batteries.
摘要翻译：公开了制备尖晶石结构的锂锰氧化物的方法。该方法包括通过使其与氢氧化锂或锂盐反应来预氧化氧化锰的步骤，然后在升高的温度下在第二步骤中使预氧化的氧化锰反应形成锰酸锂尖晶石。在具体实施方案中，将二氧化锰粉末与氢氧化锂反应以预氧化二氧化锰，并将预氧化的二氧化锰与反应混合物分离，并在升高的温度下加热并与碳酸锂反应，将其转化为锰酸锂尖晶石。尖晶石产品可以有利地用于二次（可充电）电池中。

2. 发明申请

WO1998002930A1 METHOD OF TREATING LITHIUM MANGANESE OXIDE SPINEL 审中-公开
标题翻译：处理锂锰氧化物磁珠的方法
公开(公告)号：WO1998002930A1
公开(公告)日：1998-01-22
申请号：PCT/US1997011816
申请日：1997-07-08
申请人： DURACELL, INC. , WANG, Enoch, I.
发明人： DURACELL, INC.
IPC分类号： H01M04/50
CPC分类号： H01M4/505 , C01G45/1242 , C01P2002/32 , C01P2002/52 , C01P2002/54 , C01P2004/61 , C01P2004/80 , C01P2006/40 , H01M4/131 , H01M10/0525
摘要： A method of treating lithium manganese oxide of spinel structure is disclosed. The method involves heating the lithium manganese oxide spinel in an atmosphere of an inert gas, e.g. argon, helium, nitrogen or carbon dioxide, which does not react with the spinel. Alternatively, the spinel may be first coated with an alkali metal hydroxide, preferably lithium, sodium or potassium hydroxide and then heated in an atmosphere preferably containing carbon dioxide. Such treatment of lithium manganese oxide spinel improves the performance of the spinel when employed as an electrode in rechargeable cells such as lithium-ion cells. Alternatively, the spinel may be first treated in an aqueous solution of a soluble metal salt of a carboxylic acid prior to treatment with heated carbon dioxide or inert gas. In such latter case the spinel may optionally also be treated with an alkali metal hydroxide prior to treatment with carbon dioxide or inert gas.
摘要翻译：公开了一种处理尖晶石结构的锰酸锂的方法。该方法包括在惰性气体气氛中加热锂锰氧化物尖晶石。氩，氦，氮或二氧化碳，其不与尖晶石反应。或者，尖晶石可以首先用碱金属氢氧化物，优选氢氧化锂，氢氧化钠或氢氧化钾涂覆，然后在优选含有二氧化碳的气氛中加热。这种锂锰氧化物尖晶石的处理改善了尖晶石在用作可再充电电池如锂离子电池中的电极时的性能。或者，尖晶石可以在用加热的二氧化碳或惰性气体处理之前首先在可溶性羧酸金属盐的水溶液中处理。在这种后一种情况下，在用二氧化碳或惰性气体处理之前，尖晶石也可以任选地用碱金属氢氧化物处理。

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