隨著可彎折穿戴式電子裝置的蓬勃發展，人們除了不斷研發新的電極材料，電解質也是影響其表現的一大重點，其中，電解質的使用上逐漸從早期的液態電解質轉變為膠態電解質或全固態電解質，以達到這些電子裝置所需的機械強度。除了增強機械強度，提升電化學表現也是目標之一，然而在大部分的文獻中，膠態或全固態電解質都無法維持跟液態電解質相同的電化學表現，影響的因素與電解質材料的選擇有關，因此在本研究中我們選用羧甲基纖維素(CMC)作為高分子，利用oxa-Michael addition將帶有四級銨根及磺酸根的雙離子SBMA接枝上CMC，並利用FTIR確認SBMA有確實接枝，同時加入betaine小分子雙離子使膠態電解質在電化學表現上能盡量接近液態電解質。本研究分為兩部分，在水系膠態電解質的部分使用水當溶劑，將上述的高分子加入戊二醛作為交聯劑以維持一定程度的機械強度，在有機系膠態電解質的部分使用碳酸二乙酯(DEC)當溶劑，加入戊二醛及PEGDA，除了維持機械強度，PEGDA也幫助吸收DEC進入高分子骨架。在水系的電化學表現上，我們分析膨潤度、電解鹽濃度與不同高分子對於離子導電度的影響。在有機系的電化學表現上，我們分析浸泡DEC的時長與加入不同量的PEGDA對離子導電度的影響。由於雙離子的存在可以形成離子通道，透過EIS分析，在水系中CMC-SBMA浸泡1M電解鹽溶液於150%膨潤度下表現出12.26 mS/cm的最高離子導電度。在有機系中CMC-SBMA加入0.2g PEGDA並浸泡1M DEC電解鹽溶液則表現出0.0908 mS/cm的最高離子導電度。另外我們也透過拉曼光譜探討電解鹽離子在電解質中的狀態，進一步驗證上述兩者具備最高離子導電度的原因。因此，雙離子修飾高分子用於膠態或全固態電解質，在離子導電度上能確實提升電化學表現，應用在現今高速發展的各類電子裝置中，能提供不小的幫助。

With the rapid growth of flexible wearable electronic devices, electrolytes play a critical role alongside electrode materials in determining performance. To meet the mechanical strength requirements of these devices, the use of electrolytes has shifted from liquid to gel or solid-state forms. However, most gel and solid-state electrolytes struggle to match the electrochemical performance of liquid electrolytes, largely due to material selection. This study introduces a zwitterion-modified polymer to enhance gel electrolyte performance. Carboxymethyl cellulose (CMC) was grafted with the zwitterion SBMA via oxa-Michael addition, confirmed using FTIR. Adding betaine, a small-molecule zwitterion, further improved the electrochemical properties to approach those of liquid electrolytes. In aqueous gel electrolytes, water was used as a solvent with glutaraldehyde as a crosslinking agent for mechanical strength. For organic systems, diethyl carbonate (DEC) served as the solvent, with glutaraldehyde and PEGDA added to maintain structure and absorb DEC into the polymer matrix. Electrochemical impedance spectroscopy (EIS) revealed that CMC-SBMA in the aqueous system achieved an ionic conductivity of 12.26 mS/cm at 150% swelling, while the organic system reached 0.0908 mS/cm with 0.2g PEGDA. Raman spectroscopy further explained the ion behavior supporting these results. This work demonstrates that zwitterion-modified polymers can significantly enhance the electrochemical performance of gel or solid-state electrolytes, offering potential for high-performance electronic devices.

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