公开(公告)号：US20080241691A1

公开(公告)日：2008-10-02

申请号：US12057825

申请日：2008-03-28

申请人： Chihiro FUJISAWA ,  Atsuya FURUICHI ,  Kazuki SHIMOZONO ,  Kohei KARASUMI ,  Yasushiro KUDO ,  Makoto OCHI

发明人： Chihiro FUJISAWA ,  Atsuya FURUICHI ,  Kazuki SHIMOZONO ,  Kohei KARASUMI ,  Yasushiro KUDO ,  Makoto OCHI

IPC分类号： H01M4/44 ,  H01M4/08

CPC分类号： H01M4/26 ,  H01M4/246 ,  H01M4/801 ,  H01M10/28 ,  Y02E60/124 ,  Y02P70/54 ,  Y10T29/10 ,  Y10T428/1209

摘要： A sintered substrate is configured such that pores having a pore size (pore radius) of from 5 μm to 7 μm have a peak volume fraction with respect to the total pore volume of the sintered substrate, and pores having a pore radius of greater than 8.5 μm has a volume fraction of 11% or less with respect to the total pore volume of the sintered substrate. The sintered substrate has a smaller number of large-sized pores than conventional sintered substrates and a more uniform pore size distribution, and therefore shows a sufficient strength even when the porosity is increased. In addition, a cadmium negative electrode employing the sintered substrate shows excellent gas absorption capability and therefore can reduce the internal pressure of the battery during charge.

摘要翻译： 烧结基板被构造成使得具有5μm至7μm的孔径（孔半径）的孔相对于烧结基板的总孔体积具有峰体积分数，以及孔半径大于8.5的孔 相对于烧结基板的总细孔容积，体积分数为11％以下。 烧结基板具有比常规烧结基板更小数量的大孔，并且孔尺寸分布更均匀，因此即使当孔隙率增加时也显示出足够的强度。 此外，使用烧结基板的镉负极表现出优异的气体吸收能力，因此可以降低充电期间电池的内部压力。

公开(公告)号：US20080206646A1

公开(公告)日：2008-08-28

申请号：US12038484

申请日：2008-02-27

申请人： Tetsuya KIKUCHI ,  Kazuki SHIMOZONO ,  Chihiro FUJISAWA ,  Kazuo TOMIMOTO

发明人： Tetsuya KIKUCHI ,  Kazuki SHIMOZONO ,  Chihiro FUJISAWA ,  Kazuo TOMIMOTO

IPC分类号： H01M2/14 ,  H01M10/04

CPC分类号： H01M2/162 ,  H01M10/0431 ,  H01M10/24 ,  H01M10/4235

摘要： An electrode assembly of an alkaline secondary battery includes positive and negative electrodes disposed to face each other via a separator sandwiched therebetween. The separator has a dual-layer structure composed of a main-fiber nonwoven layer and an aromatic-polyamide-fiber nonwoven layer that are laminated in the thickness direction. The main-fiber nonwoven layer contains nylon as main fiber and does not contain aromatic-polyamide-fiber. In the electrode assembly, the separator is so disposed that the aromatic-polyamide-fiber nonwoven fabric layer faces toward the negative electrode.

摘要翻译： 碱性二次电池的电极组件包括通过夹在其间的隔膜相对设置的正极和负极。 隔板具有由厚度方向层叠的主纤维非织造层和芳香族聚酰胺纤维非织造层构成的双层结构。 主纤维非织造层含有尼龙作为主纤维，不含芳香族聚酰胺纤维。 在电极组件中，隔板被布置成使得芳族聚酰胺纤维无纺布层面向负极。