Sukma, Freygieon Ogiek Rizal (2019) Pengaruh Keadaan Pengisian (State Of Charge) Terhadap Efesiensi Dan Struktur Mikro Elektroda Baterai Dinamis Asam Timbal Tiga Sel. Sarjana thesis, Universitas Brawijaya.
Abstract
Baterai dinamis asam timbal 3 sel telah berhasil dibuat dan telah dilakukan percobaan pengisian dan pengosongan dengan variasi state of charge (SOC) 100% (Fullcharge), 50% (2550 mAh), 25% (1275 mAh) dan arus pengosongan 0,8 A dan 0,5 A. Tujuan percobaan ini untuk menganalisis efesiensi baterai akibat perbedaan SOC dan struktur mikro elektroda. Data diambil menggunakan Battery Management System (BMS) sebanyak 10 siklus dan XRD dilakukan pada elektroda positif. Hasil percobaan menunjukan bahwa pengosongan 0,5 A memiliki performa lebih baik daripada 0,8 A. SOC tidak memberikan peranan signifikan terhadap efesiensi energi pada baterai dinamis asam timbal. Pada pengosongan 0,8A, menurunkan SOC (100%, 50%, 25%) menurunkan efesiensi energi dari 70% ke 62%, sedangkan pada pengosongan 0,5 A, penurunan SOC (100%, 50%, 25% meningkatkan efesiensi energi dari 75% ke 76%. Proses pengosongan mampu membentuk kristal PbSO4 dan menurunkan kadar PbO2. Semakin kecil SOC kandungan PbSO4 meningkat. Semakin besar arus pengosongan meningkatkan kandungan PbSO4.
English Abstract
The 3-cell lead acid dynamic battery has been successfully made and the charging and discharge experiments have been carried out with variations of state of charge (SOC) 100% (Fullcharge), 50% (2550 mAh), 25% (1275 mAh) and discharging currents 0.8 A and 0.5 A. The purpose of this experiment is to analyze battery efficiency due to differences in SOC and microstructure of the electrodes. Data were taken as many as 10 cycles using the Battery Management System (BMS) and XRD was carried out on positive electrodes. The experimental results show that the 0.5 A discharge current has better performance than 0.8 A. The SOC does not have a significant role in the energy efficiency of the dynamic lead acid batteries. At 0.8 A discharge current, decreasing SOC (100%, 50%, 25%) decreases energy efficiency from 70% to 62%, while at 0.5 A discharge current, decreasing SOC (100%, 50%, 25%) increases efficiency energy from 75% to 76%. Discharging process is able to form PbSO4 crystals and reduce PbO2 levels. The smaller the SOC, the PbSO4 content increases. The greater the discharge current increases the PbSO4 content.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2019/461/052001616 |
| Uncontrolled Keywords: | Baterai dinamis asam timbal, State of charge, Arus pengosongan, Srtuktur mikro, Efesiensi, Lead acid dynamic battery, State of charge, Discharging current, Microstructure, Efficiency |
| Subjects: | 500 Natural sciences and mathematics > 541 Physical chemistry > 541.3 Miscellaneous topics in physical chemistry > 541.37 Electrochemistry and magnetochemistry > 541.372 Electrolytic solutions > 541.372 4 Electrodes and elektrode phenomena |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 10 Aug 2020 08:13 |
| Last Modified: | 10 Aug 2020 08:13 |
| URI: | http://repository.ub.ac.id/id/eprint/179382 |
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