Khairati, Nur (2018) Pengaruh Perbedaan Konsentrasi Elektrolit H2so4 Terhadap Karakteristik Baterai Dinamis Pb-PbO2. Sarjana thesis, Universitas Brawijaya.
Abstract
Baterai dinamis asam timbal dengan variasi konsentrasi H2SO4 telah berhasil dikembangkan dan diuji untuk mengetahui pengaruh perbedaan konsentrasi H2SO4 terhadap karakteristik baterai dengan baterai statis asam timbal sebagai pembanding. Baterai dinamis merupakan baterai dengan kondisi elektrolit dialirkan oleh pompa melewati sel baterai. Pada penelitian ini, elektroda Pb-PbO2 dengan luas permukaan (13,5x7,5) cm2 dengan 4 variasi konsentrasi H2SO4 (20%-50%) digunakan sebagai material aktif baterai. Pengujian karakteristik baterai dilakukan dengan alat BMS (Battery Management System) yaitu Turnigy Accucell-6 sebanyak 3 siklus dan arus pembebanan 1 A. Hasil penelitian menunjukkan bahwa baterai dinamis dapat menghasilkan muatan sebesar 1 Apada tegangan diatas tegangan cut-off 1,81 V pada konsentrasi H2SO4 ≥ 20%. Kapasitas baterai dinamis meningkat seiring dengan peningkatan konsentrasi H2SO4 pada rentang 20%-40%. Pada konsentrasi H2SO4 50%, kapasitas baterai justru mengalami penurunan. Ditinjau dari kapasitas dan efisiensi, baterai dinamis memiliki performa yang lebih unggul dari baterai statis. Baterai dinamis dengan rata-rata kapasitas tertinggi adalah pada penggunaan H2SO4 40% yaitu 4.780 mAh, dengan rata-rata efisiensi sebesar 64,17% yang merupakan sistem baterai dengan perubahan efisiensi per siklus terkecil. Nilai tersebut lebih tinggi sebesar 985 mAh dari rata-rata kapasitas baterai statis pada penggunaan H2SO4 40% dengan rata-rata efisiensi 52,42%.
English Abstract
Lead acid redox flow batteries (RFB) with various H2SO4 concentrations have been developed and examined to understand the effect of electrolyte concentration in battery characteristics. A static state (conventional) batteries are used as a comparasion. RFB (dynamic state) is a battery which the electrolyte is flowed by a pump through battery cell. In this research, Pb-PbO2 with a surface area of (13.5x7.5) cm2 and 4 variations of H2SO4 concentration (20%-50%) are used as active materials of the battery. Battery cycling tests were undertaken by Turnigy Accucell-6, as Battery Management System, for 3 charge-discharge cycles at 1 Ampere load current. The experimental results show that the dynamic state battery with concentration of H2SO4 ≥ 20% could produce electricity at 1 ampere and above the cut-off voltage of 1,81 V. At concentration of H2SO4 ≤ 40%, the capacity increases along with the increasing of the electrolyte concentration. The capacity at concentration of H2SO4 = 50% is less than the capacity at concentration of H2SO4 = 40%. Based on the average capacity and efficiency, the dynamic state battery is superior than the static state battery. The dynamic state battery highest average capacity is 4780 mAh and the average efficiency is 64,17%. The average capacity is 985 mAh higher than the static state battery at concentration of H2SO4 = 40%, which the average efficiency is 52.42%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2018/150/051805296 |
| Uncontrolled Keywords: | baterai dinamis asam-timbal, H2SO4, kapasitas, efisiensi. lead acid redox battery, H2SO4, capacity, efficiency. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.31 Generations, modification, storage, transmission of electric power > 621.312 Generation, modification, storage > 621.312 4 Direct energy conversion > 621.312 42 Electrochemical energy conversion |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 02 Jun 2020 19:34 |
| Last Modified: | 16 Oct 2021 06:42 |
| URI: | http://repository.ub.ac.id/id/eprint/168334 |
Preview |
Text
Nur Khairati (2).pdf - Published Version Download (1MB) | Preview |
Actions (login required)
 |
View Item |