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    題名: 以奈米磁顆粒提升Na-FeFe普魯士藍 二次鋰電池效率
    作者: 張智軒;CHANG, CHIH-HSUAN
    貢獻者: 物理學系
    關鍵詞: 普魯士藍
    日期: 2020-06-29
    上傳時間: 2020-09-02 15:45:41 (UTC+8)
    出版者: 國立中央大學
    摘要: 近年 來普魯士藍被利用在鋰電池的負極材料製作 由於其製作方法簡單
    利用其中心孔洞空間能儲存 Li、 Na、 K等金屬的特性 對於 作為鈉電池或鉀電
    池的開始激起大家的研究 。 本實驗利用 Na-FeFe PBA做一系列的實驗來分析樣
    品結構 以及嘗試提升電池效率 。
    前半段做普魯士蘭的分析,利用 X光繞射以及中子散射來分析樣品,由
    GSAS分析可得兩樣品 Na-FeFe_1 : Na0.651Fe[Fe(CN)6]0.84[H2O]0.15∙0.18H2O ; 平均粒徑 14.1 nm ; Na-FeFe_2 : Na0.84Fe[Fe(CN)6]0.81[H2O]0.19∙0.17H2O ; 平
    均粒徑 13 nm。 實驗目的為了提升電池效率 做了兩種嘗試 於極片製作時添加
    奈米顆粒 分別為 11 nm鎳、 7 nm銀和 30 nm石墨,將奈米顆粒與普魯士藍均勻
    混和製作成電池 第二 個方法為電池做充放電時 外加 磁場 。
    經充放電結果可看出 添加其他奈米顆粒對電池充放電沒有提升的 效果 添加
    奈米鎳的效果最好 能有效降低電池的整體的衰退率 與未添加奈米顆粒電池
    比 較 電池的衰退衰退率 : Na-FeFe_1降低 18 NaFeFe_2 降低 3 % 於電池
    初期充放電時 減少衰退率的比例最為明顯 但外加磁場對電池沒有看出變
    化 。;In recent years, Prussian blue has been used in the production of negative materials for lithium batteries. Due to its simple manufacturing method, its central hole space can store the characteristics of metals such as Li, Na, K, etc. the study. This experiment uses Na-FeFe PBA to do a series of experiments to analyze the sample structure and try to improve the battery efficiency.
    In the first half of the analysis of Prussia, X-ray diffraction and neutron scattering were used to analyze the samples. Two samples ofwere obtained by GSAS analysis Na-FeFe_1: Na0.651Fe[Fe(CN)6]0.84[H2O]0.15∙0.18H2O; average particle size 14.1 nm; Na-FeFe_2: Na0.84Fe[Fe(CN)6]0.81[H2O]0.19∙0.17H2O; average particle size 13 nm. The purpose of the experiment was two attempts to improve the efficiency of the battery. Nanoparticles were added to the pole piece during the production of 11 nm nickel, 7 nm silver and 30 nm graphite, and the nanoparticles and Prussian blue were evenly mixed to make a battery. The second This method applies an external magnetic field when charging and discharging the battery.
    It can be seen from the charging and discharging results that the addition of other nanoparticles has no effect on the battery charge and discharge. The addition of nanonickel has the best effect and can effectively reduce the overall decline rate of the battery. Compared with the non-added nanoparticle battery Decay and Decay Rate: Na-FeFe_1 decreased by 18% and NaFeFe_2 decreased by 3%. During the initial charge and discharge of the battery, the rate of reduction of the decline rate was the most obvious, but the external magnetic field did not change the battery.
    顯示於類別:[物理研究所] 博碩士論文

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