本研究探討脲嘧啶自聚合以及脲嘧啶/雙馬來醯亞胺共聚合的非恆溫反應動力學的方式，藉由自由模型法求得反應活化能後，分析其熱化學反應性。
本研究同時將以上二種聚合物作為鋰離子電池正極添加劑，分析對於正極材料LiCo0.95Al0.05O2 的影響，分析方法包括使用正極半電池充放電測試(C/DC)、交流阻抗圖譜分析(EIS)、循環伏安分析(CV)等電化學反應測試，以了解這兩種添加劑的電化學性質，並通過掃描式電子顯微鏡(SEM)、能量分散光譜(EDS)與X射線光電子能譜學(XPS)了解經過充放電後的電極極片表面型態及組成，最後再藉由示差掃描熱量分析儀(DSC)了解電極材料的熱穩定性。經過比較有/無添加劑的電極極片間的差異之後，得知此添加劑應用於鋰離子電池正極時可能造成的影響。
在本研究的實驗結果中，在正極材料中添加0.5wt%的上述兩種聚合物可以最有效改善正極半電池於常溫及高溫下的充放電衰退情形。此外在電極材料熱穩定性的實驗結果中可以發現，具有添加劑的正極材料所放出的熱量比沒有添加劑的電極材料更低，顯示本研究所使用的添加劑能夠抑制正極材料在高溫下和電解液反應所造成的熱產出，從而改善正極材料的熱穩定性，根據本研究的實驗結果，添加1.0wt%脲嘧啶能夠最顯著改善正極材料的熱穩定性。

The copolymerization of uracil and N,N’- bismaleimide-4,4’- diphenylmethane (BMI) was used in this study. For knowing the reactivity for the polymer, the free-model method by non- isothermal kinetics was used to determine the activity energy.
In addition, polymerized uracil(UR) and BMI/UR as the additive were used to coat the surface of the LiCo0.95Al0.05O2 cathode particles. Coin-type half cells were assembled with metallic lithium anodes for electrochemical tests such as charge/discharge (C/DC), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and so on. The morphology and element analysis of the surface of the cycled electrodes were examined by scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). And the thermal stability of the cathodes was shown by the DSC results. Besides, the influence of the additives upon the cathodes were confirmed by comparing the experiment results of the bare LiCo0.95Al0.05O2 and coated- LiCo0.95Al0.05O2.
In this study, the experiment result shows that the optimum concentration of the two additives in the cathodes for improving the capacity fading after charging/discharging at room temperature and high temperature is 0.5wt%. Moreover, the charging/discharging result indicates that the higher amount of uracil or uracil/BMI additive will cause the worse capacity fading. And the electrodes with the additive have the lower heat generation. This result implies that the additives which are used in this study can improve the thermal stability of the electrode materials by heat suppression compared with the bare LiCo0.95Al0.05O2. Furthermore, the electrode with 1.0wt% uracil has the best thermal stability according to the data from the experiment in this study.

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