The invention discloses a lithium battery low-temperature rapid heating device and a rapid heating method, and belongs to the technical field of energy storage. The problems that in the prior art, a lithium battery heating technology is complex in structure, energy of a lithium battery is used for heating, and energy consumption of the lithium battery is increased are solved. The system comprises a lithium battery pack and a lithium battery pack heating device, and the lithium battery pack heating device is connected to the two ends of the lithium battery pack in parallel; the discharging circuit is an inductance type discharging circuit and comprises an inductor and a switching device, and the inductor and the switching device are connected in series and then connected to the two ends of the lithium battery pack; when the discharging circuit discharges, the switching device is switched on; the follow current circuit is a diode follow current circuit and is connected in series with the inductor; and when the discharging circuit is disconnected, the current in the inductor is subjected to follow current through the follow current circuit and the lithium battery pack. According to the scheme, in the low-temperature state of the lithium battery pack, the available energy of the lithium battery pack is protected, and the temperature of the lithium battery can be increased to reach the target temperature under the condition that consumption is as small as possible.

    本申请公开了一种锂电池低温快速加热装置及快速加热方法,属于储能技术领域。针对现有技术中,锂电池加热技术结构复杂,而且加热会使用锂电池的能量,增加锂电池的能耗的问题。本申请中,包括锂电池组和锂电池组加热装置,锂电池组加热装置并联于锂电池组的两端;放电电路,为电感型放电电路,包括电感和开关器件,电感与开关器件串联后连接于锂电池组的两端;放电电路放电时开关器件导通;续流电路,为二极管续流电路,续流电路与电感串联;在放电电路断开时,电感中的电流通过续流电路和锂电池组续流。本申请的方案,在锂电池组的低温状态下,保护锂电池组的可用能量,在尽量小的消耗下,使锂电池能够升温,到达目标温度。


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    Title :

    Lithium battery low-temperature rapid heating device and rapid heating method


    Additional title:

    一种锂电池低温快速加热装置和快速加热方法


    Contributors:
    ZHOU XIN (author) / SUN YONGLE (author) / WANG WEI (author) / WANG CHAO (author) / LONG HAO (author)

    Publication date :

    2023-09-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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