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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/6101

    Title: 奈米鋰電池陰極材料之製備及其改質之電池性能探討;Polymer Electrolyte Encapsulated nanosize LiCoO2 cathode material for lithium battery
    Authors: 李昱翰;Yu-Han Li
    Contributors: 化學研究所
    Keywords: 鋰電池;奈米陰極材料;cathode;LiCoO2;nano particle;Li ion battery
    Date: 2005-06-10
    Issue Date: 2009-09-22 10:13:14 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: none Thermal and electrochemical stability of the cathode materials is a critical factor governing the energy capacity and recharge cyclability of the secondary lithium battery. Present study successfully demonstrated the preparation of nano scale LiCoO2 cathode material by reverse micro-emulsion method. The charge capacity is improved due to the high surface area and the raised lithium intercalation efficiency from the nano particle. Coating the nano sphere LiCoO2 with ion conducting polymer electrolytes prevented the direct contact of the cathode materials with the electrolyte solvent. The encapsulation also showed improvement of the thermal stability and electrochemical stability. The modification of the nano-sized cathode material with solid polymer electrolyte lead to increase charge capacity, reduces irreversible charge capacity losses, increases battery cycle life, and raises the voltage tolerance from 4.1 V.
    Appears in Collections:[化學研究所] 博碩士論文

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