Nameplate capacity and rated voltage of lithium battery.solar generator for house

　　The minimum capacity that a battery should be able to discharge under design specified conditions (such as temperature, discharge rate, termination voltage, etc.), in amperes per hour, represented by the symbol C. The capacity is greatly affected by the discharge rate, so the discharge rate is usually marked with Arabic numerals at the lower right corner of the letter C, such as C20=50, indicating that the capacity at the rate of 20 hours is 50 A · h. The theoretical capacity of a battery can be accurately calculated based on the amount of electrode active substance in the battery reaction formula and the electrochemical equivalent of the active substance calculated according to Faraday's law. Due to possible side reactions in batteries and special design requirements, the actual capacity of batteries is often lower than the theoretical capacity.

　　The typical operating voltage of a battery at room temperature, also known as the nominal voltage. It is a reference for selecting different types of batteries. The actual working voltage of a battery is equal to the difference in the balance electrode potential between the positive and negative electrodes under different usage conditions. It is only related to the type of active substance in the electrode, and is not related to the quantity of active substance. The battery voltage is essentially a direct current voltage, but under certain special conditions, the phase transition of metal crystals or certain phase forming films caused by electrode reactions can cause small fluctuations in voltage, which is called noise. The amplitude of the fluctuation is small but the frequency range is wide, which can be distinguished from self-excited noise in the circuit.

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