Structure Search

    Search

    Online Support

  •  Customer service

    Location: Technique Support

二氟草酸硼酸锂(LiODFB cas 409071-16-5)在电解液常用溶剂中的电化学行为研究

2014-08-27 来源:亚科官网

 二氟草酸硼酸锂简称LiODFB,CAS No.:409071-16-5,是一种白色结晶固体,是最近几年发展起来的一种新型电解质锂盐。这种新型电解质锂盐,因为能够改善锂电池的低温循环性能,有望在动力电池行业得到广泛的应用。

我们利用自身独特的技术,制备得到了高纯的二氟草酸硼酸锂,然后进行了一系列的测试,测试结果与参考文献基本一致。

现引述文献结论如下:

(1) LiODFB has higher thermal stability and much less free acid content, and released CO2  possibly provides good safety of cells.

(2) The cells using LiODFB-based electrolyte have lower capacity fade than the cells using LiPF6-based electrolyte after 100 cycles at         55 , and higher initial capacity retention at the elevated temperature.

(3) At 0.5C and 1C discharge rates, the rate capability of the cells with the LiODFB-based electrolyte is almost the same as that of the       cells with the LiPF6-based electrolyte after 20 cycles,and the gap between the two cells is tiny.

(4) Interface properties of the cells show that LiODFB is reduced and forms a thickening and protective SEI film on the negative            electrode. Although this can increase the impedance of SEI film, the cells still can provide a preferable rate performance. More work    is needed to carry out in the lithium battery of commercialization in the future.

另外通过实验也明确了二氟草酸硼酸锂在电解液常用溶剂 EC、DMC中的溶解性能。 

 

 

本文由苏州亚科科技股份有限公司编辑

 

 



Copyright © 2010 SuZhou Yacoo Science Co., Ltd All Rights Reserved Powered by: Founder International
Yacoo Information Management Platform   用户登录   站内地图