Process for manufacture and improved manganese dioxide for electrochemical cells
    1.
    发明授权
    Process for manufacture and improved manganese dioxide for electrochemical cells 有权
    电化学电池的制造和改善二氧化锰的方法

    公开(公告)号:US06585881B2

    公开(公告)日:2003-07-01

    申请号:US09788754

    申请日:2001-02-20

    IPC分类号: C25B100

    摘要: A process for manufacture of manganese dioxide comprising subjecting an aqueous bath comprising manganese sulfate (MnSO4) and sulfuric acid (H2SO4) to electrolysis in a closed cell wherein the electrolysis bath is maintained at an elevated temperature above 110° C., preferably above 115° C. and at superatmospheric pressure. Desirably the bath can be maintained at an elevated temperature between about 115° C. and 155° C. The electrolysis is carried out preferably at elevated current density of between about 12.5 and 37 Amp/sq. ft (135 and 400 Amp/sq. meter) which allows for smaller or fewer electrolysis units. An MnO2 product having a specific surface area (SSA) within desired range of between 18-45 m2/g can be obtained. A doping agent, preferably a soluble titanium dopant is employed to help obtain the desired specific surface area (SSA) of the MnO2 product. The manganese dioxide product in zinc/MnO2 alkaline cells gives excellent service life, particularly in high power application.

    摘要翻译: 一种制造二氧化锰的方法,包括使包含硫酸锰(MnSO 4)和硫酸(H 2 SO 4)的水浴在闭孔中电解,其中电解浴保持在110℃以上,优选高于115℃的高温 C.和超大气压。 理想地,浴可以保持在约115℃和155℃之间的升高的温度。电解优选在升高的电流密度为约12.5A和37安培/平方米之间进行。 ft(135和400安培/平方米),允许更小或更少的电解单元。 可以获得具有在18-45m 2 / g之间的期望范围内的比表面积(SSA)的MnO 2产物。 使用掺杂剂,优选可溶性钛掺杂剂来帮助获得MnO 2产物的所需比表面积(SSA)。 锌/锰氧化物碱性电池中的二氧化锰产品具有优异的使用寿命,特别是在高功率应用中。

    Hydrogen recombination catalyst
    2.
    发明授权
    Hydrogen recombination catalyst 有权
    氢复合催化剂

    公开(公告)号:US06500576B1

    公开(公告)日:2002-12-31

    申请号:US09605902

    申请日:2000-06-28

    IPC分类号: H01M400

    摘要: A metal-air battery includes (a) an anode; (b) a cathode including a metal that reduces oxygen; (c) a housing for the anode and cathode having an air access that allows oxygen to contact the cathode; (d) a separator between the anode and the cathode; and (e) a hydrogen recombination catalyst within the housing. The hydrogen recombination catalyst can include a Pd, Pt, Ru metal or a salt thereof, and CuO.

    摘要翻译: 金属空气电池包括(a)阳极; (b)包含减少氧的金属的阴极; (c)用于阳极和阴极的壳体,其具有允许氧接触阴极的空气进入; (d)阳极和阴极之间的隔膜; 和(e)壳体内的氢复合催化剂。 氢复合催化剂可以包括Pd,Pt,Ru金属或其盐和CuO。

    Hydrogen recombination catalyst
    3.
    发明授权
    Hydrogen recombination catalyst 有权
    氢复合催化剂

    公开(公告)号:US06333123B1

    公开(公告)日:2001-12-25

    申请号:US09605596

    申请日:2000-06-28

    IPC分类号: H01M1034

    摘要: An alkaline battery includes a cathode, an anode, a separator, an alkaline electrolyte, and a hydrogen recombination catalyst. The hydrogen recombination catalyst includes a hydrogen oxidizing material, such as CuO, and an activating material. The activating material includes a first activating component and a second activating component. The components of the activating material can be Pd, Pt, Ru metals or salts thereof.

    摘要翻译: 碱性电池包括阴极,阳极,隔板,碱性电解质和氢复合催化剂。 氢复合催化剂包括氢氧化材料如CuO和活化材料。 活化材料包括第一活化组分和第二活化组分。 活化材料的组分可以是Pd,Pt,Ru金属或其盐。

    Manganese dioxide for alkaline cells
    5.
    发明授权
    Manganese dioxide for alkaline cells 有权
    二氧化锰用于碱性电池

    公开(公告)号:US06939528B2

    公开(公告)日:2005-09-06

    申请号:US10724495

    申请日:2003-11-28

    摘要: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.

    摘要翻译: 颗粒状MnO 2 2同时具有大于8.0m 2 / g的微孔表面积,理想地在约8.0和13m 2 / g之间, 在具有约0.035cm 3 / cm 3的总体内孔隙度的MnO 2 N 2的上下文中,BET表面积为约20和31m 2 / g之间, 当在电化学电池,特别是碱性电池中用作阴极活性材料时,SUP> / g和0.06cm 3 / g产生增强的性能。 MnO 2 N(内 - 宏孔半径)内的中孔和大孔的平均孔半径理想地大于32埃。

    Manganese dioxide for alkaline cells
    6.
    发明授权
    Manganese dioxide for alkaline cells 有权
    二氧化锰用于碱性电池

    公开(公告)号:US06863876B2

    公开(公告)日:2005-03-08

    申请号:US10094199

    申请日:2002-03-08

    摘要: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.

    摘要翻译: 在上下文中同时具有大于8.0m 2 / g的微孔表面积的颗粒状MnO 2,优选在约8.0和13m 2 / g之间,BET表面积在约20和31m 2 / g之间 当在电化学电池,特别是碱性电池中用作阴极活性材料时,具有约0.035cm 3 / g至0.06cm 3 / g的总内部颗粒孔隙率的MnO 2产生增强的性能。 MnO2(中大宏孔径)内的中孔和大孔的平均孔半径期望大于32埃。