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18 条记录 (耗时 0.017 秒)

    Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum
    6.
    发明授权
    Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum 失效
    使用阻抗谱拟合的等效电路模型的电阻分量的数学计算来评估二次电池容量的方法

    公开(公告)号：US07062390B2

    公开(公告)日：2006-06-13

    申请号：US10612080

    申请日：2003-07-01

    申请人： Dong-Hwan Kim ,  Sang-Hyo Ryu ,  Hyung-Song Lee

    发明人： Dong-Hwan Kim ,  Sang-Hyo Ryu ,  Hyung-Song Lee

    IPC分类号： G01N27/416

    CPC分类号： G01R31/3651 ,  G01R31/3662

    摘要： The present invention relates to a method for evaluating an initial capacity of secondary batteries and, more specifically, to a method for evaluating an initial capacity of secondary batteries that involves mathematical operation of specific internal resistance components obtained from an equivalent circuit model of an impedance spectrum measured for a short time period instead of using direct discharge characteristics, thereby allowing selection of batteries having a different initial discharge characteristic.

    摘要翻译： 本发明涉及一种用于评估二次电池的初始容量的方法，更具体地，涉及一种用于评估二次电池的初始容量的方法，所述二次电池的初始容量包括从阻抗谱的等效电路模型获得的特定内部电阻分量的数学运算 测量短时间段而不是使用直接放电特性，从而允许选择具有不同初始放电特性的电池。

    Process For Preparing Catalyst Composition For The Synthesis Of Carbon Nanotube With High Yields Using The Spray Pyrolysis Method
    10.
    发明申请
    Process For Preparing Catalyst Composition For The Synthesis Of Carbon Nanotube With High Yields Using The Spray Pyrolysis Method 有权
    使用喷雾热解法制备高产率碳纳米管制备催化剂组合物的方法

    公开(公告)号：US20120040186A1

    公开(公告)日：2012-02-16

    申请号：US13105663

    申请日：2011-05-11

    申请人： Sang-Hyo Ryu ,  Hyun-Kyung Sung ,  Namsun Choi ,  Wan Sung Lee ,  Dong Hwan Kim ,  Youngchan Jang

    发明人： Sang-Hyo Ryu ,  Hyun-Kyung Sung ,  Namsun Choi ,  Wan Sung Lee ,  Dong Hwan Kim ,  Youngchan Jang

    IPC分类号： D01F9/12 ,  B01J37/08 ,  B01J21/02 ,  B82Y30/00

    CPC分类号： B82Y40/00 ,  B01J23/745 ,  B01J23/75 ,  B01J23/78 ,  B01J23/8872 ,  B01J35/002 ,  B01J37/082 ,  B82Y30/00 ,  D01F9/12 ,  D01F9/127 ,  D01F9/1273 ,  Y10S977/74 ,  Y10S977/742 ,  Y10S977/84 ,  Y10S977/842 ,  Y10T428/298

    摘要： The present invention relates to a process for preparing catalyst composition for the synthesis of carbon nanotube with high yields using the spray pyrolysis method. More particularly, this invention relates to a process for preparing catalyst composition for the synthesis of carbon nanotube comprising the steps of i) dissolving multi-component metal precursors of catalyst composition in de-ionized water; ii) spraying obtained catalytic metal precursor solution into the high temperature reactor by gas atomization method; iii) forming the catalyst composition powder by pyrolysis of gas atomized material; and iv) obtaining the catalyst composition powder, wherein said catalyst composition comprises i) main catalyst selected from Fe or Co, ii) Al, iii) optional co-catalyst at least one selected from Ni, Cu, Sn, Mo, Cr, Mn, V, W, Ti, Si, Zr or Y, iv) inactive support of Mg. Further, the catalyst composition prepared by this invention has a very low apparent density of 0.01˜0.50 g/ml as well as the catalyst composition affords high production yield (1,000˜1,800%) of carbon nanotube.

    摘要翻译： 本发明涉及使用喷雾热解法制备高收率合成碳纳米管的催化剂组合物的方法。 更具体地说，本发明涉及制备用于合成碳纳米管的催化剂组合物的方法，包括以下步骤：i）将催化剂组合物的多组分金属前体溶解在去离子水中; ii）通过气体雾化法将得到的催化金属前体溶液喷涂到高温反应器中; iii）通过气体雾化材料的热解形成催化剂组合物粉末; 和iv）获得催化剂组合物粉末，其中所述催化剂组合物包含i）选自Fe或Co的主催化剂，ii）Al，iii）任选的助催化剂，选自Ni，Cu，Sn，Mo，Cr，Mn ，V，W，Ti，Si，Zr或Y，iv）Mg的非活性载体。 此外，本发明制备的催化剂组合物具有非常低的表观密度为0.01〜0.50g / ml，催化剂组合物提供了高生产率（1,000〜1300％）的碳纳米管。