Discovering a high‐performance (high rate capability, high specific capacity, and good stability) anode material for automobile battery applications is a great challenge. A titanium/silicon oxide‐CNTs (Ti_mSi_nO_l‐CNTs) is synthesized and tested as anode material for lithium‐ion batteries. High specific capacity (278 mAhg⁻¹ at 100 mA g⁻¹), high rate capability (156 mAh g⁻¹ at 4000 mA g⁻¹), and good stability (maintains 278 mAhg⁻¹ after 200 cycles) are reached over Ti_mSi_nO_l‐CNTs. The as‐synthesized Ti_mSi_nO_l‐CNTs has a particle structure that Ti_mSi_nO_l encapsulates CNTs with CNTs ends stretching out of the particles. In the Ti_mSi_nO_l phase, the TiO₂ crystal seeds are formed and encapsulated in amorphous SiO_y boundaries, which have sub‐nano pores. The high performance properties of Ti_mSi_nO_l‐CNTs could come from the synergetic combination of (1) the excellent electronic conductivity of CNTs and the amorphous carbon in Ti_mSi_nO_l‐CNTs, (2) the high Li⁺ intaking capability of the TiO₂ crystal seeds, (3) the high electrochemical activity of SiO_y, (4) the high Li⁺ insertion/extraction kinetics in the small TiO₂ crystal seeds and the amorphous SiO_y with sub‐nano pores, and (5) the high volume change tolerance offered by the CNTs binder and the amorphous SiO_y.

中文翻译：

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用于锂离子电池的钛/氧化硅-CNTs负极材料的研究

发现用于汽车电池应用的高性能（高倍率能力，高比容量和良好的稳定性）负极材料是一个巨大的挑战。合成了钛/氧化硅碳纳米管（Ti _m Si _n O _l碳纳米管），并将其作为锂离子电池的负极材料进行了测试。高的比容量（278 mAhg ^-1在100mA克^-1），高倍率性能（156毫安克^-1在4000毫安克^-1），和良好的稳定性（保持278 mAhg ^-1 200后循环）以上的Ti达到_m Si _n O _l -CNT。合成的Ti _m Si _n O_l碳纳米管具有颗粒结构，Ti _m Si _n O _l封装了碳纳米管，碳纳米管末端延伸出了颗粒。在Ti _m Si _n O _l相中，形成TiO ₂晶种并将其封装在具有亚纳米孔的非晶SiO _y边界中。的Ti的高性能特性_米的Si _Ñ ö_升-CNTs可以来自（1）CNT的优异的电子传导性和在钛的无定形碳的协同组合_米的Si _Ñ ø_升-CNTs，（2）高栗⁺TiO ₂晶种的吸收能力，（3）SiO _y的高电化学活性，（4）小TiO ₂晶种和具有亚纳米孔的无定形SiO _y的高Li ⁺插入/萃取动力学，以及（5）CNTs粘合剂和无定形SiO _y提供的高体积变化容限。