公开(公告)号：US5415957A

公开(公告)日：1995-05-16

申请号：US130194

申请日：1993-10-01

申请人： Shigeto Okada ,  Hideaki Ohtsuka ,  Hajime Arai ,  Masasi Shibata ,  Masahiro Ichimura

发明人： Shigeto Okada ,  Hideaki Ohtsuka ,  Hajime Arai ,  Masasi Shibata ,  Masahiro Ichimura

IPC分类号： H01M4/58 ,  H01M10/05 ,  H01M6/14 ,  H01M4/52

CPC分类号： H01M4/5825

摘要： A cathode material made of anhydrous ferric sulfate with a hexagonal crystal structure is presented for use in a secondary battery which generates a stable open-circuit-voltage of about 3.6 volts and offers a recharge cycling capacity of over 100 times. The cathode material is obtained by heating hydrous iron sulfate material in a temperature range between 250.degree. and 600.degree. C. to remove the water of crystallization. The secondary battery made with this cathode material provides a long-service life and a stable output voltage economically, because the starting material, iron sulfate, is abundantly available at relatively low cost.

摘要翻译： 提供了一种由六方晶体结构的无水硫酸铁制成的阴极材料，用于产生约3.6伏的稳定的开路电压并提供超过100次充电循环能力的二次电池。 阴极材料是通过在250〜600℃的温度范围加热含水硫酸铁材料来除去结晶水而得到的。 用这种阴极材料制成的二次电池经济地提供长使用寿命和稳定的输出电压，因为原料硫酸铁以相当低的成本可用。