公开(公告)号：US20090225498A1

公开(公告)日：2009-09-10

申请号：US12228730

申请日：2008-08-15

申请人： Eun Sung Lee ,  Kyun Young Ahn ,  Kwang Bum Kim ,  Kyung Wan Nam ,  Sang Bok Ma ,  Won Sub Yoon

发明人： Eun Sung Lee ,  Kyun Young Ahn ,  Kwang Bum Kim ,  Kyung Wan Nam ,  Sang Bok Ma ,  Won Sub Yoon

IPC分类号： H01G9/00 ,  H01G9/15

CPC分类号： H01G11/32 ,  H01G11/06 ,  H01G11/46 ,  Y02E60/13

摘要： The present invention provides an asymmetric hybrid capacitor, in which metal oxide containing lithium and capable of producing lithium ions by an electrochemical reaction and supplying the lithium ions in an electrolyte in the capacitor is used as a positive electrode active material, and metal oxide capable of accepting the lithium ions supplied through the electrolyte is used as a negative electrode active material, such that the lithium ions of the same participate in the electrochemical reactions at both electrodes. As a result, it is possible to minimize reduction in ionic conductivity during charge/discharge, compared with conventional asymmetric hybrid capacitors, in which metal oxide and a carbon material are used as electrode materials, respectively. Moreover, since metal oxide having high specific capacitance is used to form both electrodes, it is possible to maximize energy density and power density.

摘要翻译： 本发明提供一种不对称混合电容器，其中使用含锂的能够通过电化学反应产生锂离子并将电解质中的锂离子供应到电容器中的金属氧化物作为正极活性材料， 接受通过电解质供给的锂离子用作负极活性物质，使得其中的锂离子参与两电极的电化学反应。 结果，与使用金属氧化物和碳材料分别用作电极材料的常规非对称混合电容器相比，可以使充电/放电期间离子导电率的降低最小化。 此外，由于使用高比电容的金属氧化物形成两个电极，所以可以使能量密度和功率密度最大化。