公开(公告)号：US20100051857A1

公开(公告)日：2010-03-04

申请号：US12519629

申请日：2007-11-13

申请人： Hidehiro Takakusa ,  Minoru Okada ,  Haruki Wada ,  Masaji Haneda ,  Takahiro Osawa

发明人： Hidehiro Takakusa ,  Minoru Okada ,  Haruki Wada ,  Masaji Haneda ,  Takahiro Osawa

IPC分类号： H01M4/583

CPC分类号： H01M4/62 ,  H01M4/20 ,  H01M4/38 ,  H01M4/48 ,  H01M4/625

摘要： A storage battery or a secondary battery is capable of improving the utilization of an active material and obtaining a high energy density, using raw materials having costs substantially equal to those of a conventional lead storage battery especially as a negative-electrode plate of the secondary battery. The negative-electrode active material for the secondary battery is a kneaded mixture including: a raw active material having a metal and an oxide of the metal; and carbon in such an amount that the total absorption number thereof is at least 4.7 ml per mol of the raw active material, in which the kneaded mixture contains no sulfates or sulfates in an amount of 7×10−2 mol or smaller per mol of the raw active material. The negative-electrode active material has a specific volume of 2.2×10−1 to 5×10−1 ml/g with subjected to no formation. The carbon is acetylene black or furnace carbon.

摘要翻译： 蓄电池或二次电池能够使用与常规铅蓄电池的成本基本相同的原材料，特别是作为二次电池的负极板，能够提高活性材料的利用率并获得高能量密度 。 二次电池用负极活性物质是将具有金属和金属的氧化物的原料活性物质作为混合物， 和碳，其总吸收数为每摩尔原料活性物质至少4.7ml，其中捏合的混合物不含有每摩尔7×10 -2摩尔或更小的硫酸盐或硫酸盐 原料活性物质。 负极活性物质的比体积为2.2×10 -1〜5×10 -1 ml / g，不经形成。 碳是乙炔黑或炉碳。