Battery module

Abstract

Battery modules have a plurality of electrode assemblies in which the electrode tabs of electrode assemblies are easily attached to the battery cases by a common insulator including receptacles for receiving the electrode assemblies. These configurations enable easy manufacture of medium- and large-sized battery modules with a plurality of electrode assemblies. In some embodiments, a battery module includes an insulator capable of mounting a plurality of electrode assemblies and receptacles in the insulator for receiving a portion of each electrode assembly.

Description

technical field [0001] The present invention relates to a battery cell, and more particularly, to a battery cell including a plurality of electrode assemblies in which electrode tabs of the electrode assemblies can be easily attached to a battery case, thereby manufacturing medium-sized and large-sized battery modules. Background technique [0002] Unlike primary batteries, which cannot be repeatedly charged, secondary batteries can be repeatedly charged and discharged. Low-capacity secondary batteries with one cell are used in small, portable electronic devices such as cell phones, notebook computers, and camcorders. A high-capacity secondary battery including a plurality of battery cells connected in groups has attracted attention as a power source for driving a motor such as a hybrid electric car or the like. [0003] High-capacity secondary batteries connected in series with each other to drive a motor (for example, an electric vehicle, etc.) require high power and can ...

AI Technical Summary

Problems solved by technology

[0004] However, when a module including many small batteries is used as a high-capacity secondary battery, weight and cost increase

Furthermore, in high-capacity secondary batteries, the capacity per unit cell increases, which can significantly impair battery stability and increase the cost required to obtain the same level of performance

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