公开(公告)号：WO1996040588A1

公开(公告)日：1996-12-19

申请号：PCT/US1996008833

申请日：1996-06-05

Applicant: DURACELL INC.

Inventor： DURACELL INC. ,  BOWDEN, William, L. ,  CAPPARELLA, Mark ,  FOOKSA, Radek

IPC: C01G45/02

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

Abstract: 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.

Abstract translation: 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：WO1994008056A2

公开(公告)日：1994-04-14

申请号：PCT/US1993007333

申请日：1993-08-04

Applicant: DURACELL INC.

Inventor： DURACELL INC. ,  WANG, Enoch, I. ,  LIN, Lifun ,  BOWDEN, William, L.

IPC: C22B0

CPC classification number: H01M4/502 ,  C01G45/02 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2006/10 ,  C01P2006/40 ,  C01P2006/60 ,  H01M4/50

Abstract: The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD). The manganese dioxide product is particularly suitable for use as a cathode active material in electrochemical cells.

Abstract translation: 本发明涉及通过化学方法制造二氧化锰。 所得到的二氧化锰产品采用以其表面突出的丝状突起为特征的颗粒的形式。 具有这种表面特征的二氧化锰颗粒可以通过使硫酸锰与过硫酸氢钠在水溶液中反应来制造。 可以控制该过程以产生高密度二氧化锰。 在该过程中形成的二氧化锰可以直接沉积在电解二氧化锰（EMD）的表面上。 二氧化锰产品特别适用于电化学电池中的阴极活性材料。

公开(公告)号：WO1996040590A1

公开(公告)日：1996-12-19

申请号：PCT/US1996009461

申请日：1996-06-05

Applicant: DURACELL INC.

Inventor： DURACELL INC. ,  BOWDEN, William, L. ,  WANG, Enoch ,  KALLMES, Andrew

IPC: C01G45/12

CPC classification number: H01M4/505 ,  C01G45/1242 ,  C01G45/1257 ,  C01P2002/32

Abstract: Disclosed is a process for making a lithiated lithium manganese oxide spinel of the formula: Li(1+x)Mn2O4 comprising contacting a lithium manganese oxide spinel of the formula: LiMn2O4 with a lithium carboxylate compound, at a temperature and for a time sufficient to decompose the carboxylate compound and free the lithium to form said lithiated spinel.

Abstract translation: 公开了一种制备下式的锂化锂锰尖晶石的方法：Li（1 + x）Mn 2 O 4，包括使式LiMn 2 O 4的锂锰氧化物尖晶石与羧酸锂化合物接触，温度和时间足以 分解羧酸盐化合物并释放锂以形成所述锂化尖晶石。

公开(公告)号：WO1994008056A3

公开(公告)日：1994-04-14

申请号：PCT/US1993007333

申请日：1993-08-04

Applicant: DURACELL INC.

Inventor： DURACELL INC. ,  WANG, Enoch, I. ,  LIN, Lifun ,  BOWDEN, William, L.

IPC: C01G45/02