摘要：Lithium-ion capacitors(LICs)could combine the virtues of high power capability of conventional supercapacitors and high energy density of lithium-ion ***,the lack of high-performance electrode materials and the kinetic imbalance between the positive and negative electrodes are the major *** this study,Fe3O4 nanoparticles encapsulated in nitrogen-rich carbon(Fe3O4@NC)were prepared through a self-assembly of the colloidal Fe OOH with polyaniline(PANI)followed by *** to the well-designed nanostructure,conductive nitrogen-rich carbon shells,abundant micropores and high specific surface area,Fe3O4@NC-700 delivers a high capacity,high rate capability and long cycling *** analyses of the redox reactions reveal the pseudocapacitive mechanism and the feasibility as negative material in LIC devices.A novel LIC was constructed with Fe3O4@NC-700 as the negative electrode and expanded graphene(EGN)as the positive *** wellmatched two electrodes effectively alleviate the kinetic imbalance between the positive and negative *** a result,Fe3O4@NC-700//EGN LIC exhibits a wide operating voltage window,and thus achieves an ultrahigh energy density of 137.5 W h kg^-*** results provide fundamental insights into the design of pseudocapacitive electrode and show future research directions towards the next generation energy storage devices.

摘要：在"窄马路、密路网"的城市规划理念基础上,结合天津八大里项目的规划实践,通过分析"窄路密网"理念在建设实施中遇到的障碍,提出开放便捷需求下制度规范的弹性保障、精细化需求下实施建设的技术保障以及城市运营需求下开发管理的协同保障,以支撑"窄路密网"模式的顺利实施。