Process for producing manganese dioxide
    31.
    发明授权
    Process for producing manganese dioxide 失效
    二氧化锰生产工艺

    公开(公告)号:US5391365A

    公开(公告)日:1995-02-21

    申请号:US153259

    申请日:1993-11-16

    摘要: 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 manganese dioxide of varying density and surface area. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD) or onto the surface of other particles. The manganese dioxide product is particularly suitable for use as a cathode active material in electrochemical cells.

    摘要翻译: 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不同密度和表面积的二氧化锰。 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)的表面上或其它颗粒的表面上。 二氧化锰产品特别适用于电化学电池中的阴极活性材料。

    Non-aqueous cell with fluid cathode depolarizer and corrodible cathode
    35.
    发明授权
    Non-aqueous cell with fluid cathode depolarizer and corrodible cathode 失效
    具有流体阴极去极化器和可腐蚀阴极的非水电池

    公开(公告)号:US4366212A

    公开(公告)日:1982-12-28

    申请号:US232778

    申请日:1981-02-09

    IPC分类号: H01M4/86 H01M6/14 H01M4/36

    CPC分类号: H01M6/14

    摘要: A non-aqueous cell containing a corrosive fluid cathode depolarizer such as thionyl chloride (SOCl.sub.2) and a metal cathode such as of cold rolled steel which is substantially corroded by said fluid depolarizer with the cell having improved high rate discharge characteristics.

    摘要翻译: 含有腐蚀性液体阴极去极化剂(例如亚硫酰氯(SOCl 2))和金属阴极(例如冷轧钢)的非水电池,其被所述流体去极化器基本上腐蚀,电池具有改善的高倍率放电特性。

    Method of making non-aqueous electrochemical cell
    38.
    发明授权
    Method of making non-aqueous electrochemical cell 有权
    制造非水电化学电池的方法

    公开(公告)号:US07566350B2

    公开(公告)日:2009-07-28

    申请号:US11516084

    申请日:2006-09-06

    IPC分类号: H01M6/00

    摘要: A lithium electrochemical cell includes an electrolyte having a mixture of solvents including propylene carbonate (PC) and dimethoxyethane (DME), and a salt mixture. The salt mixture includes lithium trifluoromethanesulfonate (LiTFS), and lithium trifluoromethanesulfonimide (LiTFSI), and the cell contains less than 1500 ppm by weight of sodium. The mixture of solvents can further include ethylene carbonate (EC).

    摘要翻译: 锂电化学电池包括具有包括碳酸丙烯酯(PC)和二甲氧基乙烷(DME))在内的溶剂混合物的电解质和盐混合物。 盐混合物包括三氟甲磺酸锂(LiTFS)和三氟甲磺酰亚胺锂(LiTFSI),并且该电池含有小于1500ppm的钠。 溶剂的混合物可以进一步包括碳酸亚乙酯(EC)。

    Manganese dioxide for lithium batteries
    39.
    发明授权
    Manganese dioxide for lithium batteries 失效
    锂二氧化锰

    公开(公告)号:US5863675A

    公开(公告)日:1999-01-26

    申请号:US881453

    申请日:1997-06-24

    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。