Battery module

Abstract

The invention belongs to the technical field of electric energy storage, and particularly relates to a battery module which includes a bracket, a first guide plate, a second guide plate and at least one battery, wherein each battery includes a first end surface provided with a first electrode, a second end surface provided with a second electrode, and a column body positioned between the first end surface and the second end surface; the bracket includes a closed side wall arranged in a surrounding manner, and a bottom wall provided with at least one mounting base; one upright battery is accommodated in each mounting base; the bottom of each mounting base is hollow to expose out the first electrode of the corresponding battery; the first guide plate is fixed at the bottom of the bracket and conducted with the first electrode of the at least one battery in a contact manner; the second guide plate is fixed at the top of the bracket and conducted with the second electrode of the at least one battery in a contact manner; insulating and heat conducting liquid is accommodated in the space between the bracket and the at least one battery, and is in contact with the column body of the at least one battery. The temperature control performance of the battery module is excellent.

Description

technical field

[0001] The invention belongs to the technical field of electric energy storage, and in particular relates to a battery module. Background technique

[0002] Lithium-ion batteries have been widely used in modern society due to their advantages such as high voltage, large specific energy, and long cycle life. In particular, the rise of the new energy industry brings more opportunities to the development of power lithium-ion batteries, but also poses more challenges to the application of lithium-ion batteries.

[0003] At this stage, lithium-ion battery modules for new energy vehicles are mainly divided into several camps. From the structural division of application batteries, they can be divided into small cylindrical batteries, large square batteries, and flexible packaging batteries. Different battery structures show their own advantages and disadvantages in the process of preparing lithium-ion battery modules for vehicles. Taking cylindrical small batterie...

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