The invention provides a battery active equalization device suitable for a lithium battery pack. The device comprises a lithium-ion power battery module and a charge-discharge equalization circuit, wherein the lithium-ion power battery module can be composed of single batteries and can also be composed of a plurality of single batteries which are connected in series or in series-parallel connection; the charge-discharge equalization circuit is composed of a switch tube (including an anti-parallel fly-wheel diode) and a corresponding wire, and the switch tube can be an IGBT, an MOSFET, a SiC MOSFET and other devices and can also be a mechanical switch. The equalization device can realize the functions of energy equalization in charging and discharging processes, energy equalization in an idle state and the like, and has the advantages of low equalization loss, low heat emission, high equalization speed, flexible equalization mode and the like.

    本发明提供一种适用于锂电池组的电池主动均衡装置。该装置包括锂离子动力电池模块以及充放电均衡电路,其中锂离子动力电池模块可由单个电池单体组成,也可由多个串联或串并联的电池单体组成;充放电均衡电路由开关管(含反并联续流二极管)以及相应的导线组成,其中开关管可使用IGBT、MOSFET以及SiC MOSFET等器件,也可使用机械开关。该均衡装置可实现充放电过程下的能量均衡,闲置状态下的能量均衡等功能,且具有均衡损耗低、发热小、均衡速度快、均衡方式灵活等优势。


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    Title :

    Battery active equalization device suitable for lithium battery pack


    Additional title:

    一种适用于锂电池组的电池主动均衡装置


    Contributors:
    LI SHUAI (author) / YE MAO (author)

    Publication date :

    2021-06-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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