Carbon nanotubes, conductive poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) binder, conventional carbon black additives, and their mixes are compared with each other in terms of their effect on LiNi_0.5Co_0.2Mn_0.3O₂ slurries. The electrochemical characteristics of cathode slurries were studied using cyclic voltammetry, electrochemical impedance spectroscopy, and C-rate experiments in a half-cell configuration. Carbon nanotubes demonstrate the highest specific capacity 100 mAh/g at discharge currents 5–10 C in comparison with 60 mAh/g of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) binder and 40 mAh/g of Super P carbon black. The LiNi_0.5Co_0.2Mn_0.5O₂ electrode with carbon nanotubes showed 98.5% of the capacity retention after 100 cycles. A thorough comparison of three conductive additives demonstrates that carbon nanotubes are the most compatible and promising conductive additives for modern conventional manufacturing of high-power Li-ion batteries.

中文翻译：

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锂离子电池大功率应用中导电添加剂的比较

就它们对LiNi _0.5 Co _0.2 Mn _0.3 O ₂浆料的影响，将碳纳米管，导电聚（3,4-乙撑二氧噻吩）-聚（苯乙烯磺酸盐）粘合剂，常规炭黑添加剂及其混合物进行了比较。使用循环伏安法，电化学阻抗谱和半电池配置的C速率实验研究了阴极浆料的电化学特性。碳纳米管在5–10 C的放电电流下显示出最高的比容量100 mAh / g，而聚（3,4-乙撑二氧噻吩）-聚（苯乙烯磺酸盐）粘合剂为60 mAh / g，Super P炭黑为40 mAh / g 。LiNi _0.5 Co _0.2 Mn _0.5带有碳纳米管的O ₂电极在100次循环后显示98.5％的容量保持率。对三种导电添加剂的彻底比较表明，碳纳米管是现代常规大功率锂离子电池制造中最相容和最有前途的导电添加剂。