2022-07-22
锂电(dian)池可根据电(dian)解(jie)质不同分为液(ye)体锂离子电(dian)池和固体聚(ju)合物锂离子电(dian)池,两者的正负极材料和工作(zuo)原理是相同的,那哪种电(dian)池更好呢?
聚合物锂(li)离子电池可(ke)分为三类:
1、固体聚(ju)合物电(dian)解质锂(li)离子电(dian)池。电(dian)解质为聚(ju)合物和盐的(de)混合物,电(dian)池在室温(wen)下具有较低的(de)离子电(dian)导率,多应用于高温(wen)环(huan)境下。
2、凝胶(jiao)聚(ju)合(he)物(wu)电解(jie)质(zhi)锂离子电池(chi)。即在固体聚(ju)合(he)物(wu)电解(jie)质(zhi)中加入增塑(su)剂(ji)等添加剂(ji),提高离子电导(dao)率,一般应用(yong)于常温环(huan)境(jing)下。
3、聚(ju)合(he)物(wu)(wu)正极(ji)(ji)材料锂离子电池(chi)。采用导(dao)电聚(ju)合(he)物(wu)(wu)作为(wei)正极(ji)(ji)材料,比能是现有锂离子电池(chi)的(de)三倍,是新一代(dai)锂离子电池(chi)。
固体(ti)(ti)锂(li)离子(zi)电(dian)(dian)池和液体(ti)(ti)锂(li)离子(zi)电(dian)(dian)池的(de)区别(bie)在(zai)于电(dian)(dian)解质的(de)不同,后者使用的(de)是液体(ti)(ti)电(dian)(dian)解质,而聚合物锂(li)电(dian)(dian)池使用的(de)是固态电(dian)(dian)解质,其(qi)可(ke)(ke)以是干(gan)态的(de),也可(ke)(ke)以是胶态的(de),大多数使用的(de)是聚合物胶体(ti)(ti)锂(li)电(dian)(dian)池。
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