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    • 1. 发明授权
    • METHOD OF PREPARATION OF LITHIUM MANGANESE OXIDE SPINEL
    • VERFAHREN ZUR HERSTELLUNG EINES LITHIUMMANGANOXIDSPINELLES
    • EP0892762B1
    • 2001-05-30
    • EP97920053.2
    • 1997-04-02
    • DURACELL INC.
    • WANG, Enoch, I.BOWDEN, William, L.GIONET, Paul
    • C01G45/00H01M4/50
    • H01M4/505C01G45/1221C01P2002/32C01P2006/40H01M10/0525
    • 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.
    • 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锰氧化物,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,并将预锂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以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。
    • 8. 发明公开
    • METHOD OF PREPARATION OF LITHIUM MANGANESE OXIDE SPINEL
    • 制备氧化锰氧化锂的方法
    • EP0892762A1
    • 1999-01-27
    • EP97920053.0
    • 1997-04-02
    • DURACELL INC.
    • WANG, Enoch, I.BOWDEN, William, L.GIONET, Paul
    • C01D15C01G45H01M4H01M10
    • H01M4/505C01G45/1221C01P2002/32C01P2006/40H01M10/0525
    • 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.
    • 公开了一种制造尖晶石结构的锂锰氧化物的方法。 该方法包括通过使锰氧化物与氢氧化锂或锂盐反应,然后在升高的温度下在第二步中使预锂化的锰氧化物反应以形成锂锰氧化物尖晶石来预氧化锰氧化物的步骤。 在一个具体的实施方案中,二氧化锰粉末与氢氧化锂反应以使二氧化锰预锂化,并将预锂化的二氧化锰从反应混合物中分离出来,并在升高的温度下与碳酸锂反应并转化为氧化锂锰尖晶石。 尖晶石产品可有利地用于二次(可再充电)电池。
    • 9. 发明公开
    • AN IMPROVED MANGANESE DIOXIDE FOR LITHIUM BATTERIES
    • 用于锂电池的改进的二氧化锰
    • EP0842118A1
    • 1998-05-20
    • EP96917156.0
    • 1996-06-05
    • DURACELL INC.
    • BOWDEN, William, L.CAPPARELLA, MarkFOOKSA, Radek
    • C01G45H01M4H01M6
    • C01G45/02C01G45/1228C01P2002/54C01P2006/40H01M4/50H01M4/502H01M2300/0014
    • Disclosed is a process for treating manganese dioxide containing ion-exchangeable cations by replacing the ion-exchangeable cations present in the manganese dioxide with lithium by a process comprising first replacing ion-exchangeable cations present in the manganese dioxide with hydrogen. This readily is accomplished by slurrying the manganese dioxide in an aqueous acid solution. The resulting acidic manganese dioxide then is neutralized with a basic solution of a lithium containing compound, such as lithium hydroxide. This neutralization step serves to accomplish replacement of the previously introduced hydrogen, by ion-exchange, with lithium. The manganese dioxide then is washed with water, dried, and heat-treated at an elevated temperature, in conventional manner, to convert the gamma manganese dioxide to a mixture of the gamma and beta forms, which then is used as the active cathodic component in an electrochemical cell.
    • 本发明公开了一种处理含有可离子交换阳离子的二氧化锰的方法,该方法通过用氢气置换二氧化锰中存在的离子交换阳离子的方法用锂取代存在于二氧化锰中的可离子交换阳离子。 这很容易通过将二氧化锰在酸水溶液中浆化来完成。 然后用含锂化合物如氢氧化锂的碱性溶液中和所得酸性二氧化锰。 该中和步骤用于通过用锂进行离子交换来完成先前引入的氢的置换。 然后用水洗涤二氧化锰,干燥,并在常温下在升高的温度下进行热处理,以将γ-二氧化锰转化为γ和β形式的混合物,然后将γ-二氧化锰用作活性阴极组分 电化学电池。