A lithium iron phosphate semi-solid battery pack management circuit and system

Abstract

The application discloses a lithium iron phosphate semi-solid battery pack management circuit and system, which comprises an electric core module, a battery management unit, a wireless connection unit and an antenna circuit. The antenna circuit comprises a wireless communication module, which is electrically connected with the wireless connection unit and is provided with a radio frequency output end; an impedance matching network, which comprises at least one inductive element and at least one capacitive element; a filter branch, which is connected with the output end of the impedance matching network; and an antenna main body, which is connected with the output end of the filter branch and is arranged at the side edge area of a circuit board. A clearance isolation area is arranged around the antenna main body, and an isolation structure is arranged between the communication area where the antenna main body is located and the power area where the power loop in the battery pack is located. Through the collaborative design of impedance matching, filter noise suppression and the partition isolation of the communication area and the power area on the antenna circuit, the wireless transmission stability of the battery pack in a complex internal electromagnetic environment is remarkably improved.

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