一类阴离子自由基液态电极材料研究
发布时间：2018-11-14 14:24
【摘要】：将碱金属溶于含有芳香化合物的醚类溶剂,碱金属的一个电子转移给芳香化合物形成一个碱金属离子和一个阴离子自由基,同时溶于醚类溶剂得到一类具有高电子电导率和离子电导率的蓝黑色液体.当碱金属为钠、芳香化合物为联苯、醚类溶剂为乙二醇二甲醚时,其电子电导率和离子电导率分别为8.4×10~(-3)S.cm~(-1)和3.6×10~(-3)S.cm~(-1),电极电位为0.09 V vs.Na/Na~+,适合作为负极材料,具有原材料低廉、易于制备等优点.我们将该液体作为负极,分别以苯醌和蒽醌(AQ)溶液作为正极构建了一种新型二次电池,结果表明以AQ溶液作为正极的电池具有长循环寿命、低成本的优势.该阴离子自由基液态负极材料的提出为开发新型的储能电池提供了新思路.
[Abstract]:The alkali metal is dissolved in ether solvents containing aromatic compounds, and an electron of the alkali metal is transferred to the aromatic compounds to form an alkali metal ion and an anionic radical. A class of blue and black liquids with high electronic conductivity and ionic conductivity were obtained by dissolving in ether solvents at the same time. When alkali metal is sodium, aromatic compound is biphenyl, ether solvent is ethylene glycol dimethyl ether, its electronic conductivity and ionic conductivity are 8.4 脳 10 ~ (-3) S.cm ~ (-1) and 3.6 脳 10 ~ (-3) S. cm ~ (-1), respectively. The electrode potential is 0.09 V vs.Na/Na~, which is suitable for negative electrode material and has the advantages of low raw material and easy preparation. A new type of secondary battery was constructed by using the solution of benzoquinone and anthraquinone (AQ) as positive electrode. The results show that the battery with AQ solution as positive electrode has the advantage of long cycle life and low cost. The development of the anion free radical liquid negative electrode provides a new idea for the development of new energy storage battery.
【作者单位】： 中国科学院物理研究所;中国科学院大学物理学院;
【基金】：国家自然科学基金(批准号:51222210,11234013,51421002)资助的课题~~
【分类号】：TM912
[Abstract]:The alkali metal is dissolved in ether solvents containing aromatic compounds, and an electron of the alkali metal is transferred to the aromatic compounds to form an alkali metal ion and an anionic radical. A class of blue and black liquids with high electronic conductivity and ionic conductivity were obtained by dissolving in ether solvents at the same time. When alkali metal is sodium, aromatic compound is biphenyl, ether solvent is ethylene glycol dimethyl ether, its electronic conductivity and ionic conductivity are 8.4 脳 10 ~ (-3) S.cm ~ (-1) and 3.6 脳 10 ~ (-3) S. cm ~ (-1), respectively. The electrode potential is 0.09 V vs.Na/Na~, which is suitable for negative electrode material and has the advantages of low raw material and easy preparation. A new type of secondary battery was constructed by using the solution of benzoquinone and anthraquinone (AQ) as positive electrode. The results show that the battery with AQ solution as positive electrode has the advantage of long cycle life and low cost. The development of the anion free radical liquid negative electrode provides a new idea for the development of new energy storage battery.
【作者单位】： 中国科学院物理研究所;中国科学院大学物理学院;
【基金】：国家自然科学基金(批准号:51222210,11234013,51421002)资助的课题~~
【分类号】：TM912
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