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首页> 外文会议>Charging amp; infrastructure symposium 2018 >Improving Cycle Performance of Ni-Rich NCM Positive Electrode Materials by Boron Doping
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Improving Cycle Performance of Ni-Rich NCM Positive Electrode Materials by Boron Doping

机译：硼掺杂改善富镍NCM正极材料的循环性能

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摘要

The NCM (LiNi[x]Co[y]Mn[z]0[2], x+y+z=1) is one of the most promising positive electrode materials because of its high reversible capacity, which is increased with amount of Ni content. But the structural stability gets poor causing a capacity fading during cycles. Numerous efforts have been tried to solve the drawback. We attempt to solve this problem by doping of boron in the structure. Boron is light element and has a potential to suppress the cation mixing. If the boron can occupy vacant tetrahedral site, then it will prevent the site exchange of metal ions by blocking the adjacent octahedral sites in the layered structure. PE materials were prepared by solid-state synthesis using LiOH, (Ni[0.82]Co[0.11]Mn[0.07])(OH)[2] and boron powders (boric acid : BA, boron oxide : BO) in stoichiometric amounts. Synthesized PE materials were characterized physically as well as electrochemically. The results are going to be presented at the meeting.
机译：NCM（LiNi [x] Co [y] Mn [z] 0 [2]，x + y + z = 1）是最有前途的正极材料之一，因为它具有高可逆容量，随着可再生量的增加而增加。镍含量。但是结构稳定性变差，导致循环期间容量下降。已经尝试了许多努力来解决该缺点。我们试图通过在结构中掺杂硼来解决这个问题。硼是轻元素，具有抑制阳离子混合的潜力。如果硼可以占据空的四面体位点，那么它将通过阻塞层状结构中相邻的八面体位点来防止金属离子的位点交换。 PE材料通过固态合成使用LiOH，（Ni [0.82] Co [0.11] Mn [0.07]）（OH）[2]和化学计量的硼粉（硼酸：BA，氧化硼：BO）制备。合成的PE材料在物理和电化学上都经过了表征。结果将在会议上提出。

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  • 会议地点 Mainz(DE)
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    Dong Jun Park; Jeom-Soo Kim;

  • 作者单位

    Dong-A University, Department of Chemical Engineering, 37, Nackdong-Daero, 550beon-Gil, Saha-gu, Busan, South Korea;

    Dong-A University, Department of Chemical Engineering, 37, Nackdong-Daero, 550beon-Gil, Saha-gu, Busan, South Korea;

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