Failure Analysis Baterai Nickel Metal Hydride Tipe Aa Menggunakan Electrochemical Characterizations

Ramadan, Anugrah (2022) Failure Analysis Baterai Nickel Metal Hydride Tipe Aa Menggunakan Electrochemical Characterizations. Other thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Failure analysis dilakukan dengan tujuan untuk mengetahui penyebab kegagalan yang terjadi dalam suatu komponen yang berada dalam sebuah system sehingga dapat mencegah kegagalan yang sama dimasa mendatang. Tetapi failure analysis terhadap baterai NiMH masih belum banyak dilakukan. Sehingga, penyebab kegagalan seperti kesalahan operasional, kasalahan perbaikan, dan kesalahan perawatan pada baterai NiMH masih perlu diteliti. Oleh karena itu perlu dilakukan penelitian tentang failure analysis terhadap baterai NiMH. Failure analysis dapat dilakukan dengan beberapa metode, salah satunya yaitu dengan metode karakterisasi. Penelitian ini dilakukan dengan cara hasil pengujian dari metode karakterisasi terhadap baterai NiMH dengan keaadan rusak dibandingkan dengan hasil pengujian metode karakterisasi terhadap baterai yang normal. Metode karakterisasi yang dipakai terdiri dari 4 pengujian yaitu electrochemical characterization yang terdiri dari Cyclic voltammetry dan electrochemical impedance spectroscopy. serta scanning electron microscope dan x-ray diffraction. Berdasarkan pengujian Cyclic voltammetry diketahui pada baterai rusak membutuhkan arus yang lebih tinggi saat proses charge dan arus yang lebih rendah saat proses discharge dan ditemukan adanya efek electrical double layer. Pada pengujian Electrochemical Impedance Spectroscopy diketahui pada baterai rusak memiliki nilai untuk Warburg yang menurun dan nilai R3 yang mengalami kenaikan dibandingkan dengan baterai rusak. Dari dua pengujian tersebut disimpulkan bahwa baterai rusak mengalami failure pada elektrolit dari baterai rusak dikarenakan konsumsi yang besar pada saat oksidasi. Pada pengujian X-Ray Diffraction dan Scanning Electron Microscope, diketahui berdasarkan crystallize size pada pengujian X-Ray Diffraction pada baterai rusak memiliki ukuran kristal yang lebih besar dan pada pengujian Scanning Electron Microscope average diameter dari partikel anoda baterai rusak lebih kecil serta ditemukan adanya crack yang terdapat pada baterai rusak yang menandakan terjadinya pulverization
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Failure analysis is carried out with the aim of knowing the causes of failures that occur in a component that is in a system so that it can prevent the same failure in the future. However, failure analysis of NiMH batteries has not been widely carried out. Thus, the causes of failure such as operational errors, repair errors, and maintenance errors in NiMH batteries still need to be investigated. Therefore it is necessary to do research on failure analysis of NiMH batteries. Failure analysis can be done by several methods, one of which is the characterization method. This research was conducted by means of the test results of the characterization method for damaged NiMH batteries compared to the test results for normal battery characterization methods. The characterization method used consisted of 4 tests, namely electrochemical characterization consisting of cyclic voltammetry and electrochemical impedance spectroscopy. as well as scanning electron microscope and x-ray diffraction. Based on the Cyclic voltammetry test, it is known that damaged batteries require a higher current during the charging process and a lower current during the discharge process and an electrical double layer effect was found. In the Electrochemical Impedance Spectroscopy test, it is known that damaged batteries have a decreased value for Warburg and an increased R3 value compared to damaged batteries. From these two tests it was concluded that the damaged battery failed in the electrolyte of the damaged battery due to the large consumption during oxidation. In the X-Ray Diffraction and Scanning Electron Microscope tests, it was found that based on the crystallize size in the X-Ray Diffraction test the damaged battery had a larger crystal size and in the Scanning Electron Microscope test the average diameter of the damaged battery anode particles was smaller and a crack was found. found on the battery is damaged which indicates the occurrence of pulverization

Item Type:	Thesis (Other)
Additional Information:	RSM 620.112 Ram f-1 2022
Uncontrolled Keywords:	Failure Analysis, Baterai NiMH, Electrochemical Characterization Cyclic voltammetry, Electrochemical Impedace Spectroscopy, Scanning Electron Microscope, X-ray Diffraction; Failure Analysis, NiMH Batteries, Electrochemical Characterization Cyclic voltammetry, Electrochemical Impedace Spectroscopy, Scanning Electron Microscope, X-ray Diffraction
Subjects:	Q Science > QD Chemistry > QD553 Electrochemistry. Electrolysis T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	EKO BUDI RAHARJO
Date Deposited:	13 Apr 2023 07:02
Last Modified:	13 Apr 2023 07:02
URI:	http://repository.its.ac.id/id/eprint/97865

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