Battery module and battery system comprising same

Abstract

The invention discloses a battery module and a battery system adopting the battery module, an electrode terminal is arranged on the end surface of a monomer battery, and a plurality of the monomer batteries are connected in series and / or in parallel through the electrode terminals, wherein the battery module further comprises a metal air duct, the metal air duct is in insulation, heat conduction and connection with the electrode terminals, and the metal air duct is used for reducing or increasing the temperature of the monomer batteries. A heat management structure adopted by the battery module and a heat management system of the battery system can effectively regulate the temperature in the battery module, avoid the inconsistencies in battery performances, and further avoid reducing the service life of the batteries or causing safety accidents.

Description

【Technical field】 [0001] The present invention relates to the field of secondary batteries, more specifically, to a battery module of a secondary battery and a battery system including the battery module. 【Background technique】 [0002] The pressure of energy and the environment has brought unprecedented challenges to the development of traditional internal combustion engine vehicles. Governments, automobile companies, and scientific research institutions have invested manpower and material resources in developing alternative energy and power for internal combustion engine vehicles, which has greatly promoted the development of electric vehicles. [0003] As the main energy storage element in electric vehicles, secondary batteries are the key components of electric vehicles and directly affect the performance of electric vehicles. Therefore, the research and development of battery system thermal management system is necessary for modern electric vehicles. The reasons are: (...

AI Technical Summary

Problems solved by technology

However, the main problem of the thermal management system using gas as the heat transfer medium in the prior art is that when using the serial ventilation structure to cool down or heat up the battery system, the heat conduction efficiency of the gas medium is low and the heat transfer is uneven, and it is easy to cause The temperature drop or temperature rise between single cells is inconsistent; and the method of using parallel ventilation structure also has this problem

The temperature of the single cells in the battery module is inconsistent, on the one hand, it will reduce the battery life, on the other hand, it may even cause local overcharging and over-discharging, causing safety accidents

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