摘要
锂离子电池具有质量比能量高的突出优点,因而人们期望它能在电动汽车和电动助力车领域做出令人满意的贡献。但它的体积比能量不高,跟阀控密封铅酸电池（VRLA）一样,内阻是VRLA电池的3~4倍,低温时内阻增加更快;电池组的性能远低于单电池,加上其价格是VRLA电池的4倍以及人们对其安全性放心不下。这些因素使其在电动助力车领域还比不过VRLA电池,在电动汽车领域尚未得到市场认可。
Li-ion battery has higher weight specific energy.So it is hoped that Li-ion battery would contribute obviously to the fields of EVs and HEVs.However,its volume specific energy is not high yet and equal to VRLA batteries.And its internal resistance is 3~4 times of VRLA batteries.At low temperatures,its internal increases more quickly.The performance of Li-ion single cell is better than battery group,its cost is 4 times of VRLA,and its safety is not be satisfying.So,it is thought that these factors mentioned above would not make it gain victory over VRLA in the electric moped markets,and not be approved by EV markets yet.
出处
《电池工业》
CAS
2011年第1期45-48,共4页
Chinese Battery Industry
关键词
锂离子电池
铅蓄电池
容量
内阻
比能量
Li-ion battery
VRLA battery
capacity
internal resistance
specific energy
