SEBUAH REVIEW: SPEKTROSKOPI IMPEDANSI ELEKTROKIMIA DAN APLIKASINYA DALAM BATERAI LITHIUM-ION

Inovasi Fisika Indonesia Pub Date : 2021-07-05 DOI:10.26740/ifi.v10n2.p59-67

Antony Mahendra, Z. A. I. Supardi

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Abstract

Abstrak Dengan meningkatnya kebutuhan bahan penyimpan energi, baterai rechargeable lithium ion menjadi obyek yang banyak dipelajari. Banyak metoda yang digunakan untuk menyelidiki karakteristik elektrokimia dari baterai, salah satunya adalah Electrochemical Impedance Spectroscopy (EIS). Dengan EIS, informasi dari hubungan state of charge pada siklus tertentu baterai dengan resistansi elektrolit, resistansi film permukaan dan resistansi transfer muatan didapatkan dengan menggunakan rangkaian ekivalen yang sesuai dengan plot Nyquist. Pada artikel ini, perbandingan antara hasil karakterisasi EIS katoda LiCoO2 dan LiNi1/3Co1/3Mn1/3O2 dalam baterai lithium ion juga dipaparkan berdasarkan laporan dari penelitian yang pernah dilakukan para peneliti sebelumnya. Telah dilaporkan bahwa nilai DLi+ dari LiCoO2 lebih besar daripada LiNi1/3Co1/3Mn1/3O2, dan nilai j0 dari LiNi1/3Co1/3Mn1/3O2 lebih besar dari pada LiCoO2. Kata Kunci: Electrochemical Impedance Spectroscopy (EIS), Plot Nyquist, Baterai Lithium Ion, State of Charge Abstract With increasing need for energy storage materials, rechargeable lithium ion battery become an object that is much studied. There are many methods that used to investigate electrochemical characteristic of battery, one of them is Electrochemical Impedance Spectroscopy (EIS). With the EIS, informations about relation between state of charge at some certain cycle of battery with electrolyte resistance, surface film resistance, and charge transfer resistance are obtained with modeling equivalent circuit according to the Nyquist plots. In tis article, a comparison between the results of EIS characterization of cathode LiCoO2 and LiNi1/3Co1/3Mn1/3O2 in lithium ion battery is presented based on report studies that have been conducted by previous researcher. It has been reported that DLi+ value of cathode LiCoO2 is greater than DLi+ value of cathode LiNi1/3Co1/3Mn1/3O2, and j0 value of cathode LiNi1/3Co1/3Mn1/3O2 is greater than j0 value of cathode LiCoO2. Keywords: Electrochemical Impedance Spectroscopy (EIS), Nyquist Plot, Lithium Ion Battery, State of Charge

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复核:锂电池电化学阻滞剂和应用程序

与能源存储需求的增加相比，电池重新充电锂离子成为一个广泛研究的对象。许多研究电池的电化学特性的方法，其中之一是电化学抑制镜。在这一点上，电池的电解质电阻、表面电阻和负载转移电阻的关系信息是通过符合奈奎斯特阴谋的ekivalen序列获得的。在这篇文章中，根据研究人员之前进行的一项研究报告，比较了离子锂电池中乙二醇和二氧化硅的特性。据报道，LiCoO2的DLi+比LiCoO2大，而LiCoO2的j0比LiCoO2大。关键词:电化学阻滞剂光谱化，Nyquist的地块，离子锂电池，高浓度的能量存储材料所需的充电状态，恢复电能锂电池变成了许多游离的对象。有很多方法用于电化学查电池，其中一种是电化学抑制光谱现象。在某些电阻电阻的电阻循环中，电阻电阻的电阻电阻和电阻电阻的电阻传输都与调制解调器配合。这篇文章是关于天主教LiCoO2和lini2 - 3co1 - 3mn1 - 3氧气用于锂离子电池的报告研究的基础。据报道，“天主教LiCoO2的价值大于DLi+，比DLi l / 3p / 3氧气的价值更大，天主教l / 3p / 3氧气的价值更大，比天主教LiCoO2的价值更大。”Keywords:电化学抑制镜，Nyquist情节，锂离子电池，电荷

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Inovasi Fisika Indonesia

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24 weeks