Analisis Pengaruh Pelapisan Carbon Materials Pada Plat Positif Dan Plat Negatif Lead-Acid Battery Terhadap Cycle Life

Negari, Putri Kusuma (2018) Analisis Pengaruh Pelapisan Carbon Materials Pada Plat Positif Dan Plat Negatif Lead-Acid Battery Terhadap Cycle Life. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Baterai lead acid memiliki daya minat pasar yang tinggi karena harganya yang ekonomis. Namun, terjadinya sulfation pada baterai lead acid menyebabkan umur pakai yang pendek. Saat ini sudah banyak riset yang dilakukan dalam mencegah sulfation dengan menambahkan carbon materials guna memperluas permukaan dan porositas active mass. Penelitian-penelitian ini umumnya menambahkan karbon dengan cara mencampurkannya kedalam active mass baik pada plat positif dan plat negatif baterai. Untuk menambah efektivitas penggunaan karbon, penelitian ini dilakukan dengan melapisi active mass dengan karbon. Ada dua jenis karbon yang akan dibandingkan yaitu norit dan dibandingkan acetylene black. Penelitian ini diawali dengan melapisi cell baterai (plat positif dan plat negatif baterai lead acid) dengan acetylene black dan norit. Kemudian penulis menguji sampel yang telah dilapisi acetylene black dan norit dengan menggunakan Battery Analyzer dan Cyclic Voltammetry. Untuk cell baterai yang dilapisi material karbon yakni norit dan acetylene black menyebabkan cycle life meningkat secara signifikan, yakni dari 9 siklus menjadi 1000 siklus. Sedangkan cell baterai yang dilapisi norit dan acetylene black memiliki perbedaan kapasitas charging dan discharging yang tidak jauh berbeda. Hal ini disebabkan acetylene black berstruktur butiran kecil dengan besar SSA 68 m2/gr membuat plat yang terlapisi mudah bereaksi dengan elektrolit namun sifat konduktivitas acetylene black yang rendah membuat plat cepat kembali ke proses charging. Berbeda dengan Norit yang memiliki besar SSA 958 m2/gr – 1150 m2/gr membuat permukaan plat memiliki radius kontak yang kecil terhadap elektrolit namun sifat konduktivitas yang tinggi membuat plat cepat bereaksi dengan elektrolit dan memiliki cycle life yang tinggi. =============== Lead-acid battery has high market interest because of its low price. But, as sulfation happened to lead-acid battery, it caused using age shortened. Nowadays, lots of researches that have been done to prevent sulfation by adding carbon materials to enlarge surface area and active mass porosity. These researches generally added carbon by mixed it into active mass either positive or negative plate. To increase carbon usage affectivity, this research coated active mass with carbon. There are two types of carbon that will be compared, which are norit and acetylene black. This research started by coating battery cell (positive and negative plate of lead acid battery) with acetylene black and norit. Then, the samples that have been coated by acetylene black and norit are tested using Battery Analyzer and Cyclic Voltammetry. Carbon materials such as norit and acetylene black that coated to positive and negative plates of lead-acid battery caused high life cycle to the testing plate. As for capacity affect, testing plate that has been coated by norit has greater battery capacity than the one that has been coated by acetylene black. It is caused acetylene black which has small grain structure that is SSA 68 m2/gr making the coated plate easily reacted to electrolyte but as acetylene black conductivity is lower making the plate back to charging process soon. As with norit that has higher SSA 958 m2/gr - 1150 m2/gr making the plat surface has smaller contact radius to electrolyte but high conductivity making plate has fast reaction to electrolyte and higher cycle life.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Acetyelene Black; Cycle Life; Lead-Acid Battery; Norit; Sulfation
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2945 Lead-acid batteries.
T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: Putri Kusuma Negari
Date Deposited: 10 Apr 2018 02:42
Last Modified: 10 Apr 2018 02:42
URI: http://repository.its.ac.id/id/eprint/50753

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