公开(公告)号：US5698176A

公开(公告)日：1997-12-16

申请号：US474871

申请日：1995-06-07

申请人： Mark Capparella ,  William L. Bowden ,  Radek Fooksa

发明人： Mark Capparella ,  William L. Bowden ,  Radek Fooksa

IPC分类号： C01G45/00 ,  C01G45/02 ,  H01M4/50 ,  H01M6/16

CPC分类号： C01G45/02 ,  C01G45/1228 ,  H01M4/50 ,  H01M4/502 ,  C01P2002/54 ,  C01P2006/40 ,  H01M2300/0014

摘要： 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.

摘要翻译： 公开了一种通过用氢替代二氧化锰中存在的可离子交换的阳离子的方法，用锂替代存在于二氧化锰中的可离子交换阳离子来处理含有可离子交换阳离子的方法。 这很容易通过将二氧化锰在酸性水溶液中制浆来实现。 然后将所得酸性二氧化锰用含锂化合物如氢氧化锂的碱性溶液中和。 该中和步骤用于通过与锂的离子交换来实现先前引入的氢的置换。 然后用水洗涤二氧化锰，干燥并以常规方式在升高的温度下热处理，以将γ二氧化锰转化成γ和β形式的混合物，然后将其用作活性阴极组分 电化学电池。

公开(公告)号：US5863675A

公开(公告)日：1999-01-26

申请号：US881453

申请日：1997-06-24

申请人： Mark Capparella ,  William L. Bowden ,  Radek Fooksa

发明人： Mark Capparella ,  William L. Bowden ,  Radek Fooksa

IPC分类号： C01G45/00 ,  C01G45/02 ,  H01M4/50 ,  H01M6/16

CPC分类号： C01G45/02 ,  C01G45/1228 ,  H01M4/50 ,  H01M4/502 ,  C01P2002/54 ,  C01P2006/40 ,  H01M2300/0014

摘要： 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.

摘要翻译： 公开了一种通过用氢替代二氧化锰中存在的可离子交换的阳离子的方法，用锂替代存在于二氧化锰中的可离子交换阳离子来处理含有可离子交换阳离子的方法。 这很容易通过将二氧化锰在酸性水溶液中制浆来实现。 然后将所得酸性二氧化锰用含锂化合物如氢氧化锂的碱性溶液中和。 该中和步骤用于通过与锂的离子交换来实现先前引入的氢的置换。 然后用水洗涤二氧化锰，干燥并以常规方式在升高的温度下热处理，以将γ二氧化锰转化成γ和β形式的混合物，然后将其用作活性阴极组分 电化学电池。