摘要
小容量单体锂离子电池具有比能量高的突出优点,但动力型锂离子电池却至今尚未得到电动汽车市场认可。价格高和安全性隐患是锂离子动力电池众所周知的影响因素;高内阻、低温(0℃以下)时电池内阻急剧升高和容量快速下降、耐过充电和过放电能力差等因素使电动汽车起动性能差,行程没有预期的长,并且电池组使用寿命大幅度缩短。对锂离子动力电池要加强基础研究,尤其是开发新的电极材料。
The Li-ion single battery of small capacity exhibites an outstanding advantage of high specific energy, but the power Li-ion battery group has not been accepted by EV market hitherto. It is known to all that high cost and less safety are the factors preventing Li-ion battery from EV market. And there are high internal resistance, capacity decreasing and internal resistance increasing rapidly at low temperature （ 〈 0 ℃）, as well as the bad ability resisting over-charging and over-discharging, which lead to the bad starting performance, suggested that the basic studies no long travel distance as expected, for Li-ion power battery should be shortened serve life of EVs. It is strengthen, and the new electrode materials should be researched especially.
出处
《电池工业》
CAS
2011年第6期359-362,366,共5页
Chinese Battery Industry
关键词
锂离子动力电池
电池寿命
内阻
比能量
比功率
Li-ion power battery
serve life of battery
internal resistance
specific energy
specific power
