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The increase in the end-of-charge potential on constant current charging in lithiated electrolyte compared with pure potassium hydroxide is attributed to the bulk incorporation of lithium into the Ni(OH)2 electrodes.
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Factors affecting the constant current charging; the charging time, temperature and the number of charging-discharging cycles, N, were investigated.
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Constant current charging-discharging tests indicate that the batteries could deliver a specific energy of 24 Wh L-1 at a current density of 55 mA cm-2.
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Corresponds to the point, during constant current charging, where the voltage stops increasing.
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Depending on different operational requirements, constant current charging can be further classified according to the charging rate.
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GP NiMH batteries use constant current charging as the basis of the charging method.
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In secondary battery charging the two most commonly used methods are constant voltage charging and constant current charging.
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SLA batteries and Ni-Cd batteries lend themselves to constant current charging and hence to simple charging by the solar panel.
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The advantages of the constant current charging method include high charging efficiency, flexibility, and position control of input capacity.
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The general relation between battery voltage and state of charge during constant current charging is shown in Figure 7.
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