Lithium Battery Outdoor Generator,Ten Parameters You Need To Understand

Lithium Battery Outdoor Generator,Ten Parameters You Need To Understand.The lithium-ion battery is the core of lithium battery power generator. The main parameters usually refer to electrical properties, mechanical properties, and storage performance parameters. Electrical performance, off-load voltage, working voltage, internal resistance, charging voltage, capacitance, specific energy (comparative rate) and life are the ten main parameters you need to understand in the purchase of lithium battery power generator.

  1. Electrical Force

The electrical force of a battery, also known as the battery standard voltage or the theoretical voltage, is the potential difference between the positive and negative poles when the battery is disconnected (no current flows through the outer line).

  1. Voltage

Lithium-ion battery voltage: parameters include open circuit voltage, termination voltage, operating voltage and charging voltage.

Off-load Voltage: is the potential difference between the positive and negative terminals of the battery when no current flows through the external circuit. Generally, the open-circuit voltage is less than the battery electromotive force.

Termination voltage: the lowest point voltage or the highest charging voltage specified by the battery at the restaurant or during charging. For a secondary battery such as a lithium-ion battery, the termination voltage is based on the consideration of the battery capacity taking into account the stability of the cycle. Determined on. In the case of low temperature or large current discharge, due to the serious polarization, in order to ensure the full utilization of the active material, the terminal voltage of the charge-discharge is generally set to be wider.

 

Working voltage: also known as discharge voltage or load voltage, refers to the potential difference between the battery electrodes when the current passes through the external circuit, which is the actual output voltage of the battery during operation, and its magnitude varies with current and discharge at the open-circuit voltage and the termination voltage. The range varies between.

Charging voltage: For charging only the secondary battery, it is the terminal voltage of the secondary battery during charging. In the case of constant current charging, the charging voltage is gradually increased with the charging time. In the case of constant voltage charging, the charging current is quickly reduced with the charging time.

  1. Battery Internal Resistance is an important parameter to measure the performance of the battery, the internal resistance of the battery is large, it will reduce the working voltage when the battery is discharged, increase the internal energy loss of the battery, thereby increasing the heat of the battery. The internal resistance of the battery is mainly affected by various factors such as battery material, manufacturing process, and battery structure.
  2. Capacity

The unit capacity of the battery is AH, including the theoretical capacity (refers to the amount of electricity calculated according to the electrochemical equivalent of the active substance participating in the electrochemical reaction), and the rated capacity (refers to the battery under the designation and production of the battery, the discharge condition specified or guaranteed) The minimum amount of electricity that should be discharged), the actual capacity (refers to the amount of electricity discharged from the battery's termination voltage under certain discharge conditions, that is, at a certain discharge current and temperature).

  1. Comparative Rate

Refers to the electrical work that the battery can make under certain discharge conditions. It is equal to the product of the discharge capacity of the battery and the average operating voltage of the battery, expressed in units of Wh.

  1. Power

Refers to the energy output by the battery per unit time under certain discharge conditions, in watts (W) or (kW). The unit mass or the power per unit volume of the battery is called the specific power of the battery.

  1. Discharge Current

When talking about battery capacity or energy, it is necessary to indicate the magnitude of the discharge current or the discharge condition, which is usually expressed by the discharge rate. The discharge rate refers to the speed of discharge, which is usually expressed by "time rate" and "magnification".

  1. Coulomb Efficiency

Also called charging and discharging efficiency, expressed as a percentage of the discharged electricity and the charged electricity, is an important parameter to characterize the reversibility of the secondary battery charging and determine the battery life.

9.Storage Performance And Self-discharge

Refers to the size of self-discharge after a certain period of time (such as temperature, humidity, etc.) when the battery is open. Although the battery does not emit some energy during storage, there is always a self-discharge phenomenon inside the battery.

  1. Lithium Battery Power Generator Battery Life

For a primary battery, battery life primarily refers to the shelf life, which is the time required to obtain the specified performance specifications after the battery is placed without load.

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