本文以電化學阻抗頻譜為基礎針對密封型鉛酸電池於不同狀態下的儲電狀態情況進行量測，狀態包括在線及離線。將量測結果與建立的等效電路模型進行曲線回歸分析，以驗證二者之正確性，並將分析後的各項等效電路參數值與誤差百分比進行比較以觀察儲電狀態與各項等效電路參數的變化關聯，部分電路參數與儲電狀態呈負相關而部分的與儲電狀態大致成正相關。除了各項等效電路參數變化以外也可看出電池狀態在不同情況下的變化。在經過一連串實驗與分析後驗證了電化學阻抗頻譜對電池儲電狀態檢測之可行性。

In this thesis, electrochemical impedance spectroscopy (EIS) is adopted to detect the state of charge (SOC) of valve regulated lead acid (VRLA) battery under off-line and on-line conditions. The measurement results and the built equivalent electrical model can verify each other with curve fitting analysis. Value and error % of all parameters of equivalent circuit can be compared after analyses so that observation on the relations between those parameters and SOC can be implemented. Some parameters are inversely proportional to SOC and the others are approximately proportional to SOC. In addition to variations of every parameter of equivalent circuit, the situation of batteries can be observed easily when batteries change under different circumstances. The feasibility of detection on the SOC of battery with EIS can be ensured after series experiments and analyses.

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