battery · 2018-12-14 · •kapasitas aki merupakan muatan listrik yang ... (lemon, et cetera)...
TRANSCRIPT
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FUNGSI BATERAI • Sumber tegangan mainan anak-anak.
• Starter mesin sepeda motor/mobil
• Sumber tegangan cadangan pada komputer dan peralatan kontrol.
• Sumber tegangan alat-alat telekomunikasi.
• Sumber tegangan instalasi penerangan darurat.
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PENGERTIAN
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PENGERTIAN
suatu komponen elektronika yang menyimpan energi listrik arus searah
(DC) dalam bentuk senyawa kimia
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MACAM-MACAM
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MACAM-MACAM
• Baterai Primer adalah jenis baterai yang dapat menghasilkan energi listrik, tetapi tidak dapat diisi ulang.
Contoh: Batu baterai, salt-water
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MACAM-MACAM
• Baterai Sekunder adalah jenis baterai yang dapat menghasilkan energi listrik dan dapat diisi ulang dengan memberikan arus dengan arah berlawanan pada saat baterai menghasilkan arus.
• Contoh: Aki, Baterai Ni-Cd dan Li-Ion
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PROSES KIMIA PADA AKI • Aki di isi
(Charging)
Pada Anoda:
Pada Katoda:
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PROSES KIMIA PADA AKI • Aki digunakan
(Discharging)
Pada Anoda:
Pada Katoda:
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Mendeteksi Pengisian Aki
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Kapasitas Baterai
• Kapasitas aki merupakan muatan listrik yang dapat diberikan ke beban dengan mengalirkan arus tetap hingga mencapai tegangan akhir. (satuan ampere x jam atau Ah)
• Kapasitas aki sebesar 12 V 32 Ah memiliki makna bahwa aki tersebut mampu mensuplai listrik dengan tegangan sebesar 12 Volt dan arus sebesar 32 A dalam waktu 1 jam.
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Perkembangan Teknologi Baterai Primer
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Perkembangan Teknologi Baterai Primer (lanjutan)
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Perkembangan Teknologi Baterai Sekuder
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Perkembangan Teknologi Baterai Sekuder (lanjutan)
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Perkembangan Teknologi Baterai Sekuder (lanjutan)
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Perkembangan teknologi baterai
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Kelebihan Baterai li-po • Bobot ringan • bentuk tipis dan fleksibel sehingga dapat di bentuk
sesuai kebutuhan gadget • Lebih tahan lama dari pada li-ion karena tingkat self
discharge sangat rendah • Lebih aman karena resiko kebocoran elektrolit sangat
rendah
Kekurangan Baterai li-po • Harga mahal • Sulit di dapat di pasaran • daya tampung energi rendah • Perawatan sulit, karena kebanyakan baterai jenis ini
tidak bisa di lepas sehingga membutuhkan alat atau teknisi khusus untuk membuka nya.
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Homemade cells Almost any liquid or moist object that has enough ions to be
electrically conductive can serve as the electrolyte for a cell. As a novelty or science demonstration, it is possible to insert two electrodes made of different metals into a lemon,[78] potato,[79] etc. and generate small amounts of electricity. "Two-potato clocks" are also widely available in hobby and toy stores; they consist of a pair of cells, each consisting of a potato (lemon, et cetera) with two electrodes inserted into it, wired in series to form a battery with enough voltage to power a digital clock.[80] Homemade cells of this kind are of no real practical use, because they produce far less current—and cost far more per unit of energy generated—than commercial cells, due to the need for frequent replacement of the fruit or vegetable. In addition, one can make a voltaic pile from two coins (such as a nickel and a penny) and a piece of paper towel dipped in salt water. Such a pile would
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Terima kasih