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首页> 外文会议>International Tropical Renewable Energy Conference >Optimizing the Performance of Li_4Ti_5O_(12) Anode synthesized from TiO_2 Xerogel and LiOH with Hydrothermal-Ball Mill Method by using Acetylene Black
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Optimizing the Performance of Li_4Ti_5O_(12) Anode synthesized from TiO_2 Xerogel and LiOH with Hydrothermal-Ball Mill Method by using Acetylene Black

机译：通过使用乙炔黑，优化从TiO_2 Xerogel和LioH合成的Li_4Ti_5O_（12）阳极的性能

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Optimizing the Li-ion Batteries performance using Li_4Ti_5O_(12) (LTO) as anode material by addition of using Acetylene Black was studied in this research. The LTO was successfully synthesized using sol-gel method to form TiO_2 xerogel continued by calcination, hydrothermal, ball milling and sintering process. XRD (X-Ray Diffraction), scanning electron microscopy-Energy Dispersive Spectroscopy (SEM-EDS) and Brunauer-Emmett-Teller (BET) was performed to identify the characteristic of Li_4Ti_5O_(12) powder likes phase, morphology, chemical composition and surface area. Spinel Li_4Ti_5O_(12) and rutile TiO_2 were detected in XRD patterns. The morphology of Li_4Ti_5O12 shows presence of agglomerates structure. The surface area of Li_4Ti_5O_(12) powder is 6.404 m~2/g. Electrode sheet then be prepared with LTO and mixed with PVDF binder (5 wt%) and AB 5 wt% (LTO-1), 10 wt% PVDF binder and 10wt% AB (LTO-2), 15 wt% PVDF binder and 15 wt% AB (LTO-3) of total weight solid content. Half-cell coin battery was made with lithium counter electrode. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and Charge-discharge (CD) test were performed to examine the performance of Li-ion Batteries. The best result was obtained in LTO-2, due to lowest resistance (27 ohm) and highest initial capacity (146.82 mAh/g). The increasing of AB content affects the rate capability of battery. It can be seen by CD test, where the LTO HT2-AC 1.5 has better rate capability then LTO-2 and LTO-1. LTO-3 has 24% of initial capacity at 10C, when LTO-2 has 21% of initial capacity at 10C, and LTO-1 has no capacity at 10C. It is proved that increasing AB content could lead to rate-capability and cycling performance improvement which reached at the optimum value in the LTO-2.
机译：在本研究中，研究了使用Li_4Ti_5O_（12）（LTO）作为阳极材料优化锂离子电池性能。在本研究中，通过添加使用乙炔黑进行阳极材料。使用溶胶 - 凝胶法成功地合成了通过煅烧，水热​​，球磨和烧结过程来形成TiO_2 Xerogel。进行XRD（X射线衍射），扫描电子显微镜 - 能量色散光谱（SEM-EDS）和Brunauer-Emmett-externer（BET）以识别Li_4Ti_5O_（12）粉末喜欢阶段，形态，化学成分和表面的特征区域。在XRD图案中检测到尖晶石Li_4Ti_5O_（12）和金红石TiO_2。 Li_4Ti_5O12的形态显示聚集体结构的存在。 Li_4Ti_5O_（12）粉末的表面积为6.404m〜2 / g。然后用LTO制备电极板并与PVDF粘合剂（5wt％）和AB 5wt％（LTO-1），10wt％PVDF粘合剂和10wt％ab（LTO-2），15wt％pvdf粘合剂和15总重量固体含量的wt％ab（lto-3）。用锂对电极进行半电池硬币电池。进行电化学阻抗谱（EIS），循环伏安法（CV）和电荷 - 放电（CD）测试以检查锂离子电池的性能。由于电阻最低（27欧姆）和最高初始容量（146.82mAh / g），在LTO-2中获得了最佳结果。 AB内容的增加会影响电池的速率能力。可以通过CD测试可以看出，LTO HT2-AC 1.5具有更好的速率能力，然后是LTO-2和LTO-1。 LTO-3在10C时具有24％的初始容量，当LTO-2具有10℃的初始容量的21％，LTO-1在10℃下没有容量。事实证明，随着LTO-2的最佳值，增加的AB含量可能导致速率 - 能力和循环性能改善。

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