Battery module, battery pack including same, and vehicle

Abstract

Disclosed is a battery module including a reinforcing member for reinforcing the mechanical stiffness of a module case. In order to achieve the above object, the battery module according to the present invention comprises: a plurality of secondary batteries arranged in at least one direction; a module case including a cover portion, a bottom portion, and a side portion to define an internal space in which the plurality of secondary batteries are mounted; and a reinforcing member provided in the module case and fixed to a lower surface of the cover portion and an upper surface of the bottom portion.

Description

technical field [0001] The present disclosure relates to a battery module, a battery pack including the same, and a vehicle, and more particularly, to a battery module having a reinforcing member to reinforce the mechanical strength of a module case. [0002] This application claims the benefit of Korean Patent Application No. 10-2020-0059726, filed with the Korean Intellectual Property Office on May 19, 2020, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0003] Recently, with the rapid increase in demand for portable electronic products such as laptop computers, cameras, and cell phones, and the widespread development of electric vehicles, energy storage batteries, robots, and satellites, many efforts are being made to rechargeable high-performance secondary batteries. Research. [0004] Currently, commercially available secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteri...

AI Technical Summary

Problems solved by technology

When vibration or bending repeatedly occurs in the module case, damage or cracks may occur in the central part of the module case, resulting in deterioration of the durability of the battery module

[0009] In particular, when the battery module includes a plurality of secondary batteries, large deformation occurs at the central portion of the module case due to the weight of the plurality of secondary batteries, which makes the problem worse.

[0010] In addition, when bolts are used to fix the outermost area of ​​the module case of the battery module, the central part of the module case is fixed weakly, resulting in a large deformation of the central part, which makes the deformation problem of the battery module worse

Images