采用ＸＲＤ、ＴＥＭ方法对纳米相电极材料的结构、形貌进行表征，并用循环伏安法、恒流充放电法对电极材料的嵌锂电化学行为进行研究．结果表明，由于纳米材料的微结构特性使其具有优越的嵌锂特性：１）锂离子嵌入电极材料内部的深度小，过程短，具有较大的比表面，有利于采用较大的电流对该电池进行充放电．２）具有较大的嵌锂空间位置，有利于增加电极的锂嵌容量．
In this paper, the structure and morphology of the nano phase electrode materials have been characterized with XRD and TEM. The performances of electrochemical intercalation and deintercalation of lithium ions have been studied by using cyclic voltammograms and galvanostatic charge discharge techniques. The results show that the nano materials posses advantage of micro structure and Li+ ions intercalation performances. The observed high capacity and large charge discharge current density of the nano phase materials seem to have resulted from three kinds of effects: 1) an increase in the space for Li+ ions intercalation; 2) a decrease in the distance for Li+ ions to diffuse through the solid phase; 3) a decrease in real current density of high specific surface area at nano phase materials.
1PeledE，MenachemC，Bar－TwoDetal．Improvedgraphiteanodeforlithiumbateries．J．Electrochem．Soc．，1996，143：L42PaneroS，SpilaE，ScrosatiB．Anewtypeofarocking－chairbatteriesfamilybasedonagraphiteanodeandapolymercathode．J．Electrochem．Soc．，1996，143：L293LiuW，KowalK，FarringtonGC．ElectrochemicalcheracteristicofspinelphaseLiMn2O4－basedchathodematerialspreparedbythepechiniprocess．J．Electrochem．Soc．，1996，143：35904XiangHQ，FangSB，JiangYY．Carbonaceousanodesforlithium－ionbateriespreparedfromphenolicresinswithdiferentcross－linkingdensities．J．Electrochem．Soc．，1997，144：L1875ShiH，BroddR．Batteriesforportableapplicationsandelectricvehicles．ElectrochemicalSocietyProceed－ings，Vol．97－18，p．776SanchezL，Pereira－PamosJP．Electrochemicalpropertiesofanewnon－stoichiometricapineloxide（MN2．5O4）asLiinsertioncompound．ElectrochemicalActa，1997，42：5317NisbizawaM，MukaiK，KuwabataSetal．Templatesynthesisofpolypyrole－coatedspinelLiMn2O4nanobulesandtheirpropertiesascathodeactivemeterialsforlithiumbatteries．J．Electrochem．Soc．，1997，144：19238杨勇，舒东，余海等．大隧道结构锂锰氧化物电极材料研究．电源技术，1997，21（5）：1909夏熙，刘玲．二氧化锰在锂离子电池中的应用．电源技术，1997，21（3）：12010王大志，修向前，林俊德等．纳米氧化锆结构对其电性能的影响．第八届全国固态离子学学术会议论文集，1996：2111陈萍．甲烷催化部分氧化制合成气及甲烷催化裂解制碳纳米管的研究（学位论文）．厦门：厦门大学化学系，1997．5
