摘要
研究了乙腈(AN)和乙二醇二甲醚(DME)对六氟磷酸锂(LiPF6)电解液电导率的影响。结果表明:在同一温度下,电导率随AN添加量的增加而增大,而DME的添加则使电导率先增加后趋于稳定。在AN和DME添加量一定的情况下,电导率均随温度的升高而增大。电导率与物质的量比和温度之间的关系分别可用函数δ=A+B1x+B2x2和δ=A1+B2T拟合,相关系数(R2)都大于0.99。该研究结果可为六氟磷酸锂及相关电解液的制备提供相关参数。
The influences of AN and DME on the conductivity of the LiPF6 electrolytes were researched in this paper. The results showed that the conductivity was enhanced with the increasing content of AN in the same temperature. However, the conductivity was enhanced with the increasing content of DME at the beginning and then remained unchanged. The conductivity was increased with the rising temperature in the same addition of AN and DME. The relation of conductivity, mole ratio and temperature fitted in the function of 8 =A ＋B1χ ＋B2χ^2 and 8 =A1 ＋B2T, and the correlation coefficient （R2） was over 0.99. Experimental results could provide related parameters for the fabrication of lithium hexafluorophosphate and its electrolytes.
出处
《电池工业》
CAS
2011年第6期354-358,共5页
Chinese Battery Industry
关键词
乙腈
乙二醇二甲醚
电导率
电解液
六氟磷酸锂
acetonitrile
1,2-dimethoxyethane
conductivity
electrolyte
lithium hexafluorophosphate
