Abstract
In this paper, it is the research topic focus on the electrical characteristics analysis of lithium phosphate iron (LiFePO4) batteries pack of power type. LiFePO4 battery of power type has performance advantages such as high capacity, lower toxicity and pollution, operation at high temperature environment and many cycling times in charging and discharge and so on. The charging and discharging characteristics for LiFePO4 batteries of power type pack have been verified and discussed by the actual experiment. Base on the 12V10AH LiFePO4 battery was proceeding on charging and discharging test with over high current value and which investigate the parameters such as the internal resistance, the related charge and discharge characteristics of LiFePO4 battery pack, the actual value of internal voltage and internal resistance of the battery pack and by polynomial mathmatic model to approach the accury of inner resistance on discharging mode.
Highlights
The battery is storage and energy conversion components which can be stored in the original physical energy, chemical energy or other type energy and that can be converted into electricity and released to attach circuit for application [1, 2]
Chemical batteries are chemical substances through the material of the redo reaction which by the active substances reactive effect convert from chemical energy to electricity that base on the charging and discharging apply recycle can divided into primary battery and secondary battery
The secondary battery is chemically converted into electrical energy and can be recharged into a battery by recharging the battery that effect is re-converted into chemical energy and it can be reused
Summary
The battery is storage and energy conversion components which can be stored in the original physical energy, chemical energy or other type energy and that can be converted into electricity and released to attach circuit for application [1, 2]. In accordance with the energy storage and release methods that can be divided into physical batteries and chemical batteries. Chemical batteries are chemical substances through the material of the redo reaction which by the active substances reactive effect convert from chemical energy to electricity that base on the charging and discharging apply recycle can divided into primary battery and secondary battery. The charging and discharging characteristics of power type LiFePO4 batteries pack will be by the actual experiment to verify and discussion. 2) Discuss and decide the lithium iron phosphate (LiFePO4) battery of power type pack rated to voltage and capacity as the subject of research. 3) Discussion on the parameters and characteristics of power type LiFePO4 pack in charging mode and discharging mode. 6) To find the power type LiFePO4 pack the inner resistance in charging and discharging test with heavy duty to reach the relative errors
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