烧结式泡沫式基板对高倍率电池性能的影响  

Influence of sintered and foamed electrode on electrochemical performance in high-rate battery

作　　者：唐琛明 高效岳[2] 

机构地区：[1]江苏动力电池及材料工程技术研究中心,江苏启东226200 [2]轻工业化学电源研究所,江苏苏州215006

出　　处：《电池工业》2005年第6期327-331,共5页Chinese Battery Industry

摘　　要：用烧结式正极镍基板制成的MH-Ni、Cd-Ni电池比用泡沫式基板制成的电池内阻小。10C电流放电,烧结式的电池放电平台高出25～50mV。电池放电后常温下储存较长时间,当电压低于1.0V时泡沫式基板制成的电池容量将不可逆衰减15%～25%,55℃高温下搁置更明显;烧结镍电极制成的电池无此现象。结果表明:造成容量不可逆衰减的原因是泡沫式基板依赖的钴导电网被破坏所致。The inner resistance of Ni-MH ＆ Ni-Cd battery, which is fabricated from sintered nickel positive substrate, is lower than the battery that fabricated from foamed nickel substrate. When discharging at 10C, the discharge level of the sintered battery is 25 - 50mV higher than that of the foamed nickel battery. When the battery is stored for a long time under the normal temperature after discharge and the voltage is lower than 1.0V, the capacity of battery fabricated from foamed nickel substrate will decay by 15% - 25% irreversibly. The decay will be more obvious at 55℃ or higher temperature, The battery fabricated from sinter nickel substrate has no the phenomenon. It was discussed that the decay of the battery was caused by the destroying of CoOOH conductive net in the foamed nickel substrate.

关 键 词：氢镍电池 镉镍电池 烧结式基板 泡沫式基板 高倍率放电 贮存性能 

分 类 号：TM912.2[电气工程—电力电子与电力传动]