Title

磷酸鋰鐵電池的交流阻抗分析

Translated Titles

AC impedance study of LiFePO4 battery

DOI

10.6845/NCHU.2012.01466

Authors

蘇建翰

Key Words

磷酸鋰鐵 ; 石墨 ; 交流阻抗 ; LiFePO4 ; Graphite ; AC impedance

PublicationName

中興大學物理學系所學位論文

Volume or Term/Year and Month of Publication

2012年

Academic Degree Category

碩士

Advisor

斯頌平

Content Language

繁體中文

Chinese Abstract

本論文製備薄膜電解質,或將電解質滲入不同孔徑的polycarbonate薄膜內當作電解質。以LiFePO4為陰極,石墨為陽極與所製備之電解質組裝成電池。利用Solartron 1260A阻抗分析儀與BAT-750B自動充放電機,量測電解質與電池的電性。使用等效電路模擬得出電解質的直流電阻、電極片的電阻、電荷轉移之阻抗、擴散電阻。

English Abstract

Batteries using LiFePO4 as cathode, graphite as anode, and PAN/ EC/DMC/LiClO4 as gelled electrolyte were assembled. Thin films polycarbonate infiltrated with gelled electrolyte were also used as electrolytes. The interfaces between cathode/electrolyte, anode/electrolyte, and the assembled battery were studied by ac impedance analyzer. The complex impedance is fitted with equivalent circuit. The parameters of the battery such as resistance of the electrolyte, resistances of the electrode/electrolyte interfaces, the diffusion resistance, and the impedance of charge transfer were obtained. The charge-discharge characteristics of the battery were also studied.

Topic Category 基礎與應用科學 > 物理
理學院 > 物理學系所
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