公开(公告)号：US20100028779A1

公开(公告)日：2010-02-04

申请号：US12533664

申请日：2009-07-31

Applicant: Qing GONG ,  Weiguo Yang ,  Lin Jiang ,  Jingyu Ren

Inventor： Qing GONG ,  Weiguo Yang ,  Lin Jiang ,  Jingyu Ren

IPC: H01M4/58 ,  C08J9/16 ,  C08G73/10

CPC classification number: H01M2/1653 ,  B01D67/0027 ,  B01D67/0093 ,  B01D71/64 ,  B01D2325/02 ,  C08G73/1046 ,  C08G73/105 ,  C08G73/1067 ,  C08G73/1071 ,  C08J9/26 ,  C08J2201/044 ,  C08J2379/08 ,  C08L79/08

Abstract: A porous polyimide membrane is provided. The volume of pores with a diameter of between about 50 and about 300 nm is more than about 40%, preferably more than 75% of the total pore volume in the membrane. A method for preparing a porous polyimide membrane comprises: preparing a porous polyamide acid membrane; stretching the porous polyamide acid membrane to form a stretched membrane; and imidizing the stretched membrane to form a porous polyimide membrane. The volume of the pores with a diameter of about 50-300 nm is more than about 40%, preferably more than 75% of the total pore volume in the porous polyimide membrane.

Abstract translation: 提供多孔聚酰亚胺膜。 直径为约50至约300nm的孔的体积大于膜中总孔体积的约40％，优选大于75％。 制备多孔聚酰亚胺膜的方法包括：制备多孔聚酰胺酸膜; 拉伸多孔聚酰胺酸膜以形成拉伸膜; 并且将拉伸的膜酰亚胺化以形成多孔聚酰亚胺膜。 直径约50-300nm的孔的体积大于多孔聚酰亚胺膜中总孔体积的约40％，优选大于75％。

公开(公告)号：US20090311607A1

公开(公告)日：2009-12-17

申请号：US12548626

申请日：2009-08-27

Applicant: Lei Han ,  Changping Wang

Inventor： Lei Han ,  Changping Wang

IPC: H01M4/02 ,  B05D5/12 ,  H01M2/14

CPC classification number: H01M2/04 ,  H01M2/06 ,  H01M2/08 ,  H01M2/1094 ,  H01M2/1241 ,  H01M2/1653 ,  H01M2/1673 ,  H01M2/18 ,  H01M2/202 ,  H01M2/22 ,  H01M2/347 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6553 ,  H01M10/6556 ,  H01M10/6567 ,  H01M10/6571 ,  H01M10/66 ,  H01M2004/025 ,  H01M2200/00

Abstract: A battery electrode sheet comprises a conductive substrate and an electrode material coated on at least a portion of the conductive substrate. The coated portion of the conductive substrate comprises a first region, a second region, and a transition region between the first and second regions. The electrode material on the first region has a first thickness; and the electrode material on the second region has a second thickness, which is smaller than the first thickness. The electrode material on the transition region has a thickness that decreases between the first and second regions.

Abstract translation: 电池电极片包括导电衬底和涂覆在导电衬底的至少一部分上的电极材料。 导电衬底的涂覆部分包括第一区域，第二区域和第一和第二区域之间的过渡区域。 第一区域上的电极材料具有第一厚度; 并且第二区域上的电极材料具有小于第一厚度的第二厚度。 过渡区域上的电极材料具有在第一和第二区域之间减小的厚度。