Battery module having module case

Abstract

Disclosed is a battery module which effectively protects an internal configuration from external impacts and increases manufacturing efficiency. The battery module according to the present invention for achieving the above purpose, comprises: a plurality of can-type secondary batteries arranged in a horizontally laid form; a bus bar at least partially made of an electrically conductive material toelectrically connect the plurality of can-type secondary batteries; an outer wall having an inner space formed to accommodate the plurality of can-type secondary batteries, and formed to surround theinner space; and a bumper part configured to protrude outwardly from an outer surface of the outer wall to absorb external impact.

Description

technical field [0001] The present disclosure relates to a battery module including a module case, and more particularly, to a battery module that effectively protects internal components from external impacts and improves manufacturing efficiency. [0002] This application claims priority from Korean Patent Application No. 10-2019-0003391 filed in Korea on January 10, 2019, the disclosure of which is incorporated herein by reference. Background technique [0003] Currently commercialized secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, lithium secondary batteries, and the like. Among these secondary batteries, since lithium secondary batteries have almost no memory effect compared with nickel-based secondary batteries, lithium secondary batteries are favored due to their advantages of free charge and discharge, very low self-discharge rate, and high energy density. much attention. [0004] Such a lithium secondary bat...

AI Technical Summary

Problems solved by technology

However, when an external impact occurs, the shape of the case formed of a metal material is deformed, and a part of the case collides or contacts the internal configuration (module case, bus bar, secondary battery, etc.) under strong force, and internal damage may occur and internal short circuit

Therefore, there is a problem that secondary accidents such as explosion or fire occur in the secondary battery

[0008] Moreover, in the prior art, in the process of inserting the module case into the inner space of the case, since internal components such as the module case and bus bars are likely to be damaged, inserting the module case into the case The process in is difficult and takes a lot of time

As a result, the manufacturing cost of the battery module increases

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