Analisis Pengaruh Penambahan LiOH pada Sintesis Katoda LiNi0.9Mn0.05Co0.05O2 (NMC 955) Terhadap Performa Elektrokimia Baterai Ion Lithium

Putri, Prabandari Syam (2022) Analisis Pengaruh Penambahan LiOH pada Sintesis Katoda LiNi0.9Mn0.05Co0.05O2 (NMC 955) Terhadap Performa Elektrokimia Baterai Ion Lithium. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemanfaatan energi terbarukan sedang marak dibicarakan, salah satunya perkembangan baterai ion lithium. Sebagai salah satu negara yang memiliki kekayaan nikel terbesar di dunia, Indonesia memiliki kesempatan untuk bersaing secara global dalam rangka produksi material katoda berbasis nikel yang mana merupakan bahan baku awal pembuatan baterai lithium NMC. Pada penelitian ini dilakukan proses sintesis dengan metode co-precipitation dengan menggunakan bahan dasar NiSO4.H2O, MnSO4.H2O, dan CoSO4.7H2O. Kemudian setelah dilakukan proses kalsinasi didapatkan serbuk NMC 955. Selanjutnya dilakukan pengujian karakterisasi pada sampel dan didapatkan bahwa struktur yang terbentuk adalah mirip bola (spherical) yang teraglomerasi dengan range diameter yang semakin meningkat seiring meningkatnya excess LiOH. Berdasarkan hasil uji performa elektrokimia menunjukkan performa baterai menurun karena memiliki nilai kapasitas spesifik yang rendah yaitu untuk masing-masing sampel 1%, 10%, dan 15% excess LiOH memiliki nilai 0,2519; 0,6808; dan 0,1964 mAh/g pada siklus 100 dan capacity loss yang tinggi yaitu 70,28%. Hasil pengujian EIS juga memiliki nilai Rct yang sangat tinggi yaitu untuk masing-masing sampel 1%, 10%, dan 15% excess LiOH didapat nilai Rct secara berturut-turut 51.118, 186.270, dan 187.920 Ω, dimana menunjukkan bahwa baterai NMC 955 yang diteliti memiliki konduktivitas yang buruk.
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The use of renewable energy is currently being discussed, one of which is the development of lithium ion batteries. As one of the countries with the largest nickel wealth in the world, Indonesia has the opportunity to compete globally in the production of nickel-based cathode material, which is the initial raw material for the manufacture of NMC lithium batteries. In this study, the synthesis process was carried out using the co-precipitation method using the basic ingredients of NiSO4.H2O, MnSO4.H2O, and CoSO4.7H2O. After the calcination process, NMC 955 powder was obtained. The sample was tested for the characteristics and it was found that the structure formed was like a ball (spherical) which agglomerated with a diameter range that increased by the increasing excess LiOH. Based on the results of the electrochemical performance test, it showed that the battery performance has low specific capacity value, namely for each sample of 1%, 10%, and 15% excess LiOH, has a value of 0,2519; 0,6808; and 0,1964 mAh/g at cycle 100, the high capacity loss that is 70.28%. The results of the EIS test also have a very high Rct value, namely for each sample of 1%, 10%, and 15% excess LiOH, the Rct values are 51.118, 186.270, and 187.920 Ω , which indicates that the NMC 955 battery that is studied has low conductivity.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Battery, Calcination, NMC Cathode, Lithium Metal, Baterai, Kalsinasi, Katoda NMC
Subjects:	Q Science > QD Chemistry > QD115 Electrochemical analysis
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Prabandari Syam Putri
Date Deposited:	04 Feb 2022 01:40
Last Modified:	01 Nov 2022 04:47
URI:	http://repository.its.ac.id/id/eprint/92729

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