, Volume 8, Issue 2, pp 91-105
Date: 29 Apr 2012

Nanoscale interface control for high-performance Li-ion batteries

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Li-ion batteries have attracted great interest for the past decades, and now are one of the most important power sources for portable electronic devices, store electricity, hybrid electric vehicles (HEV), etc. However, Li-ion-battery technologies still have several problems related to the electrochemical performance (cycle-life performance and power density) or safety of the active electrode materials. There have been numerous breakthrough challenges to overcome these problems by extensive research. Among the various methods to improve the battery’s electrochemical properties, nanoscale coating on active materials and control of the nanostructured morphology were proven as effective approaches over the last decade. In this review paper, enhanced electrochemical properties of the cathode and anode materials via nanoscale interface modification and the respective enhancing mechanisms will be discussed.