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中文摘要：
尖晶石型钛酸锂(Li4Ti5O12)因其在循环过程中具有良好的稳定性和安全性以及优良的快速充电性能，成为Li4Ti5O12/AC非对称电化学电容器的重要电极材料。本项目为进一步提高此体系的功率密度以及能量密度，拟通过水热、溶剂热以及离子液体辅助组装合成小尺寸的Li4Ti5O12、碳包覆Li4Ti5O12以及含氮碳包覆Li4Ti5O12电极材料，并通过离子掺杂占位制备低嵌锂电位的改性Li4Ti5O12，深入研究制备方法、合成条件对Li4Ti5O12及碳包覆Li4Ti5O12微观结构、组成的影响，阐明改性Li4Ti5O12结构与其倍率性质及所组成电化学电容器功率密度、能量密度等电化学参数之间的关系，为设计高电子和锂子导通能力的Li4Ti5O12电极材料及其在高性能非对称电化学电容器中的应用提供理论指导。
英文摘要：
Li4Ti5O12；Wet chemistry method；Nano-micro-structure；Composite Electrodes；
结论摘要：
尖晶石型钛酸锂(Li4Ti5O12)作为一种“零应变材料”，循环性能稳定，安全性能好，高低温性能优异，以其作为负极的动力锂电池及锂离子电容器具有广阔的应用前景。本课题紧密围绕提高钛酸锂电子导电率、改善离子扩散速率这两个亟待解决的国际性难题，从钛酸锂材料的制备、组成、结构与性能的关系入手，开展了系统深入的研究工作，取得了一系列在国际上产生重要影响的创新性成果。发展了一种构筑钛酸锂纳微结构的“湿化学方法”，揭示了在化学锂化过程中纳米晶的生长规律；提出了碳自包覆、引入缺陷、掺杂降电位等三种结构与性能优化策略，解决了粒径不可控、电子导电率低、传荷阻抗大、嵌锂电位高等难题；同时也构筑了柔性一体化的电极结构；显著提高了锂离子电池的功率密度，实现了快速充放电特性；组装成高性能的锂离子电容器。将具有高电子和锂离子导通能力的Ti3+自掺杂的Li4Ti5O12、3D有序介孔TiNb2O7纳米管作为电池型负极，分别以花生壳衍生碳和石墨烯作为电容型正极，优化组装成非对称电化学电容器器件，即锂离子电容器。能量密度和功率密度（基于正负极活性物质总量）分别高达67、74 Wh kg-1和8000、7500 W kg-1。
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期刊论文
Facile growth of hexagonal NiO nanoplatelet arrays assembled by mesoporous nanosheets on Ni foam tow
Preparation and Electrochemical Lithium Storage of Titanium Dioxide@Multi-walled Carbon Nanotubes (T
Preparation and electrochemical capacitance of hierarchical graphene/polypyrrole/carbon nanotube ter
Three-Dimensional Coherent Titania-Mesoporous Carbon Nanocomposite and Its Lithium-Ion Storage Prope
3D porous layered double hydroxide grown on graphene as advanced electrochemical pseudocapacitor mat
Preparation and electrochemical performances of PEDOT/sulfonic acid-functionalized graphene composit
Enhanced cycling performance and electrochemical reversibility of a novel sulfur-impregnated mesopor
Design of N-doped Carbon Coated Li4Ti5O12 Nanocomposite with a Core-Shell Structure and Its Applicat
Mesoporous NiCo2O4 nanowire arrays grown on carbon textiles as binder-free flexible electrodes for e
Rhombohedral NASICON-Structured Li2NaV2(PO4)3 with Single Voltage Plateau for Superior Lithium Stora
Preparation and Electrochemical Performance of Carbon Nanotubes/Graphene Oxide/Sulfur Complex Cathod
Preparation and properties of polystyrene nanocomposites with graphite oxide and graphene as flame r
Confined germanium nanoparticles in an N-doped carbon matrix for high-rate and ultralong-life lithiu
Absorption mechanism of carbon-nanotube paper-titanium dioxide as a multifunctional barrier material
TiNb2O7 nanoparticles assembled into hierarchical microspheres as high-rate capability and long-cycl
Encapsulating sulfur into mesoporous TiO2 host as a high performance cathode for lithium-sulfur batt
High rate capability and superior cycle stability of a flower-like Sb2S3 anode for high-capacity sod
Three-dimensional graphene nanosheets/carbon nanotube paper as flexible electrodes for electrochemic
FacileWater/Ionic Liquid/Organic Triphase Interfacial Synthesis of Coral-Like Polyaniline toward Hig
Synthesis of hydrogenated TiO2-reduced-graphene oxide nanocomposites and their application in high r
Flower-like LiMnPO4 hierarchical microstructures assembled from single-crystalline nanosheets for li
High performance three-dimensional Ge/cyclized-polyacrylonitrile thin film anodes prepared by RF mag
Facile template-free synthesis of ultralayered mesoporous nickel cobaltite nanowires towards high-pe
Facile water/ionic liquid/organic triphase interfacial synthesis of coral-like polyaniline toward hi
Electrospun hierarchical Li4Ti4.95Nb0.05O12/carbon composite nanofibers for high rate lithium ion ba
Flexible Films Derived from Electrospun Carbon Nanofibers Incorporated with Co3O4 Hollow Nanoparticl
Synthesis of Nanostructured Materials by Using Metal-Cyanide Coordination Polymers and Their Lithium
General strategy for designing core-shell nanostructured materials for high-power lithium ion batter
Porous Nitrogen-Doped Carbon Nanotubes Derived from Tubular Polypyrrole for Energy-Storage Applicati
Advanced Energy-Storage Architectures Composed of Spinel Lithium Metal Oxide Nanocrystal on Carbon T
Enhanced Performance of Aqueous Sodium-Ion Batteries Using Electrodes Based on the NaTi2(PO4)(3)/MWN
Highly enhanced lithium storage capability of LiNi0.5Mn1.5O4 by coating with Li2TiO3 for Li-ion batt
Crumpled Nitrogen-Doped Graphene for Supercapacitors with High Gravimetric and Volumetric Performanc
Design of a Nitrogen-Doped, Carbon-Coated Li4Ti5O12 Nanocomposite with a Core-Shell Structure and It
NiCo2S4 Nanosheets Grown on Nitrogen-Doped Carbon Foams as an Advanced Electrode for Supercapacitors
Polymer-assisted synthesis of a 3D hierarchical porous network-like spinel NiCo2O4 framework towards
Enhancing the electrochemical performance of Li1.2Ni0.2Mn0.6O2 by surface modification with nickel-m
Facile Synthesis of N-Doped Carbon Coated Li4Ti5O12 Microspheres Using Polydopamine as Carbon Source
Nitrogen-doped carbon coated Li4Ti5O12 nanocomposite: Superior anode materials for rechargeable lith
Flexible Hybrid Paper Made of Monolayer Co3O4 Microsphere Arrays on rGO/CNTs and Their Application i
Pseudocapacitive behaviours of Na2Ti3O7@CNTs coaxial nanocables for high-performance sodium-ion capa
Si nanoparticles encapsulated in elastic hollow carbon fibres for Li-ion battery anodes with high st
Nanospace-Confinement Copolymerization Strategy for Encapsulating Polymeric Sulfur into Porous Carbo
Stabilized titanium nitride nanowire supported silicon core-shell nanorods as high capacity lithium-
Growth of ultrathin mesoporous Co3O4 nanosheet arrays on Ni foam for high-performance electrochemica
Facile hydrothermal synthesis of single crystalline TiOF2 nanocubes and their phase transitions to T
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