论文部分内容阅读
To meet the demand in electric vehicles and energy storage applications, it is necessary for next generation lithium-ion batteries to have high energy density and fast charge and discharge capability.This manuscript demonstrates the preparation of transition metal oxide micro/nanostmctured arrays on metal substrates as anode and high energy hierarchical cathode materials towards fabricating new lithium-ion batteries with enhanced electrochemical performances.On one hand, a bulk aqueous solution-based process and a microemulsion-mediated process have been developed respectively to control the kinetic and thermodynamic processes for the transition metal oxide micro/nanostructured arrays grownon metal substrates as anode directly.On the other hand, aseries of hierarchical cathode materials, including spinel LiNi0.5Mn1.5O4, layered LiNi1/3Co1/3Mn1/3O2, and lithium-richlayered 0.SLi2MnO3·0.5LiNi1/3Mn1/3Co1/3O2, have been successfully prepared by a controllable stepwise co-precipitation method.This match design for the full cells not only takes advantages of the high specific capacity, high rate capability, good safety and other features related with the anode and cathode materials, but also simplifies the assembly procedures of full cells.