Main performance indicators of lithium ion batteries.lithium deep cycle marine battery Vendor

　　1. The capacity of lithium -ion batteries

　　The battery capacity is divided into a rated capacity and actual capacity. The rated capacity of the battery refers to the battery at the condition that the battery is at 20 ℃ ± 5 ℃, and the electricity that should be provided at the time to end the voltage is represented by C5. The actual capacity of the battery refers to the actual power released by the battery under a certain discharge condition, which is mainly affected by the discharge multiplier and temperature (therefore, strictly speaking, the battery capacity should refer to the charging conditions). Capacity unit: MAH, AH (1AH = 1000mAh).

　　2. Internal resistance of lithium -ion battery battery

　　The internal resistance of the battery refers to the resistance that the battery flows through the battery during working. There are two parts: Om internal resistance and polarization internal resistance. The large resistance value of the battery will cause the battery discharge work voltage to decrease, and the discharge time will be shortened. The internal resistance size is mainly affected by factors such as the material, manufacturing process, and battery structure of the battery. Internal resistance is an important parameter for measuring the performance of the battery.

　　3. The voltage of the lithium -ion battery

　　The opening voltage refers to the difference between the battery without current flow when the circuit has no current in the non -working state, and the potential difference between the battery positive and negative electrodes. In general, the lithium-ion battery is about 4.1-4.2V after full charging, and the opening voltage of the road after discharge is about 3.0V. The battery can be judged by the battery opening voltage detection.

　　The working voltage, also known as the end voltage, refers to the difference between the battery in the working state that there is a current flow of the current in the working state, that is, the current current is outdated. In the working state of the battery discharge, when the current flows across the battery, the resistance is not required to overcome the internal resistance of the battery. Therefore, the working voltage is always lower than the opening voltage, and the opposite is opposite when charging. The discharge work voltage of the lithium -ion battery is about 3.6V.

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