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锂电池厂家讲解动力电池有哪些?

2022-09-13

锂电池

动(dong)力(li)电(dian)池(chi)(chi)主要有镍(nie)(nie)氢(qing)电(dian)池(chi)(chi)、铅酸电(dian)池(chi)(chi)、镍(nie)(nie)镉电(dian)池(chi)(chi)、锂(li)电(dian)池(chi)(chi)这四(si)大(da)类,下面看看各种(zhong)电(dian)池(chi)(chi)的特点:

1、铅(qian)酸电池(chi)由于自身的性能逐(zhu)渐退出市(shi)场,其具有铅(qian)污染(ran);

2、镍镉电池(chi)也有污染和严重的记忆效益,并(bing)已基本退出市场(chang);

3、镍氢电(dian)池(chi)是镍镉电(dian)池(chi)的改进(jin),比(bi)能(neng)可达60-80Wh/kg,并具有充(chong)电(dian)速度快、基(ji)本无记(ji)忆效应、无环境污染、安全性高的特点,目(mu)前作为(wei)汽车动力电(dian)池(chi)的生产技(ji)术已(yi)基(ji)本成熟。

4、目前,镍氢电(dian)池(chi)在动力电(dian)池(chi)行业中(zhong)占(zhan)主导地位,磷(lin)酸铁锂(li)电(dian)池(chi)处于(yu)工(gong)业发展(zhan)的早(zao)期(qi)阶(jie)段。

5、镍氢(NIMH)电(dian)池具有更好的电(dian)池性能(特别是(shi)安全性)和成熟的制造技(ji)术,目(mu)前(qian)在(zai)世界(jie)上常(chang)见(jian)的混合动力汽车(HEV)电(dian)池中(zhong)占主导地位。

6、镍氢(qing)电池目前占主(zhu)导(dao)地位,主(zhu)要原(yuan)因是现有(you)混(hun)合动(dong)力汽(qi)车的电池能量只(zhi)有(you)1 ~ 2kWh,纯电动(dong)汽(qi)车无法(fa)运行或纯电动(dong)汽(qi)车的电池续(xu)航不足3km。从长远来看,NIMH是不可用(yong)的插电式混(hun)合动(dong)力汽(qi)车、电动(dong)汽(qi)车。

7、与镍氢电池相比(bi),锂离子电池的优点主要(yao)体现在:

比能(neng)(neng)和能(neng)(neng)量密(mi)度高,约为(wei)镍氢电(dian)池的两倍(bei),可大大提高电(dian)动汽(qi)(qi)车(che)的续航(hang)能(neng)(neng)力,功率更高,自(zi)放电(dian)小(xiao),无记忆效应(ying),这些特点可以提高电(dian)动汽(qi)(qi)车(che)使(shi)用的便捷性;

原(yuan)材料成本低,技术改进空间大,成本降低空间大。

镍(nie)氢电(dian)(dian)(dian)池(chi)(chi)(chi)技术(shu)成(cheng)熟,安全性好,是混(hun)合(he)动(dong)力汽(qi)车(HEV)电(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)主(zhu)要选择,但(dan)难以满足较高(gao)电(dian)(dian)(dian)气(qi)化程度的(de)(de)需(xu)求。锂(li)(li)电(dian)(dian)(dian)池(chi)(chi)(chi)是下一代(dai)电(dian)(dian)(dian)动(dong)汽(qi)车电(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)佳选择,预计在未来三年左右的(de)(de)时间里(li),锂(li)(li)电(dian)(dian)(dian)池(chi)(chi)(chi)将(jiang)取代(dai)金属氢化物镍(nie)成(cheng)为电(dian)(dian)(dian)动(dong)汽(qi)车电(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)主(zhu)流。

国内企业在镍(nie)氢动力电池市(shi)场的机(ji)会窗口很小。


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