| Budget Amount *help |
¥41,340,000 (Direct Cost: ¥31,800,000、Indirect Cost: ¥9,540,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2016: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Fiscal Year 2015: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
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| Outline of Final Research Achievements |
Zeolite-templated carbon (ZTC) is characterized by the presence of a large number of edge sites. In this study, electrochemical redox sites such quinone groups are introduced into these edge sites and the resulting chemical modified ZTC is applied to the active material for a positive electrode with large capacity and high current density in lithium ion secondary battery. As a result, the effective introduction of quinone groups is achieved, but we have found that such groups do not work as a redox-active site. Instead, we demonstrate that furan-type ethers in ZTC function as such an electrochemically active site in a relatively high electric potential range. Moreover, our study reveals how carbon surface chemistry influences the electrochemical stability of carbon materials and we have succeeded in the synthesis of a large-surface area porous carbon having almost no edge sites using the template method.
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