Heat exchange device, temperature control system and temperature control method of lithium battery pack

Abstract

The embodiment of the invention provides a heat exchange device, a temperature control system and a temperature control method of a lithium battery pack. The lithium battery pack comprises a plurality of single lithium batteries. The heat exchange device comprises a plurality of single heat exchange bodies arranged in parallel and connecting structures detachably connected between the adjacent single heat exchange bodies, wherein the plurality of single lithium batteries are arranged in parallel and are clamped by the adjacent single heat exchange bodies so as to be fixed between the adjacent single heat exchange bodies; and each single heat exchange body comprises a main body forming a cavity to contain cooling liquid, at least one single heat exchange body comprises a liquid inlet, and at least one single heat exchange body comprises a liquid outlet, so that the cooling liquid flows in the heat exchange device. According to the heat exchange device provided by the embodiment, different numbers of single lithium batteries are selected according to the actual requirements of different electric vehicles, the corresponding temperature control requirement can be met only by adjusting the number of the single heat exchange bodies.

Description

Technical field [0001] In particular, in particular, the present application relates to a heat exchange device, a temperature control system, and a temperature control method of a lithium battery pack. Background technique [0002] At present, the battery used by the pure electric vehicle is mostly a lithium battery. The lithium battery has the advantages of high energy density, high discharge voltage, low self-discharge rate, and high charging efficiency, but the lithium battery is very sensitive to temperature, so that lithium batteries Performance is affected by temperature. Lithium batteries do not only lead to performance degradation in high temperatures, and even in extreme cases, thermal out-of-control issues will cause human safety issues. Therefore, the cooling study of lithium battery packs has become one of the main research directions of electric vehicles. [0003] Since the power of the lithium battery pack required by the different electric vehicles is different, th...

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the existing methods, the present application proposes a lithium battery pack heat exchange device, temperature control system and temperature control method to solve the power requirements of different lithium battery packs existing in the prior art and to design different heat exchange devices technical issues

Images