Cell cartridge with a composite intercell connecting net structure

Abstract

The present invention relates to a cell cartridge which enables the mass production and stabilization thereof, and in which a plurality of unit cells are assembled in a composite serial-parallel connection method in a case, and thus is modulated. The aim of the present invention is to provide a cell cartridge with a composite intercell connecting net structure, which can be simply assembled, as opposed to conventional methods of binding cells using a glass tape or the like, to shorten the time required for assembly and to enable easy assembly, and to improve the productivity and the accuracy of production standards.; Further, the aim of the present invention is to provide a cell cartridge with a composite intercell connecting net structure in which cells are maintained at a constant interval to prevent problems caused by the direct contact among cells and by the heat generated thereby, to prevent the problems of the performance degradation of cells and the shortened lifespan of a battery caused by the direct contact among cells and by the heat generated thereby, and to enable mass production of standardized module-wide cell packs. To this end, a cell cartridge with a composite intercell connecting net structure is disclosed, wherein said cartridge comprises: a plurality of unit cells; a case which accommodates the unit cells assembled therein; spacing members arranged among the unit cells accommodated in the case to keep the unit cells separate from one another by a predetermined spacing; and a connection plate which is fixed at the inner surface of the case, and equipped with terminals connected to the terminal of each of the unit cells to connect the unit cells in a composite serial-parallel fashion.

Description

technical field [0001] The present invention relates to a unit case, and more specifically, to a unit case in which a plurality of unit cells are assembled into a case and modularized. Background technique [0002] Looking at the structure of a conventional Lithium-ion cell pack as an example of a storage battery (secondary battery) that stores electric energy and supplies it to a load that requires the electric energy, a plurality of After the lithium ion batteries (cells) are formed into a unit bundle as a bundle, the unit bundle is collected to form a larger bundle, and a battery pack of a desired capacity is manufactured by a process of collecting these cells to form a larger bundle. [0003] At this time, conventionally, cells with a circular cross-section (cylindrical cells) or cells with various cross-sections are bundled with a material such as glass ribbon to form a unit bundle, and after forming a plurality of unit bundles by the same method, glass The straps are ...

AI Technical Summary

Problems solved by technology

[0012] In addition, the purpose is to provide a unit box composed of a composite connection network between units, improve the structure of the external terminal connected to the battery terminal, thereby eliminating poor contact and excessive contact resistance between the battery terminal and the external terminal It can eliminate the problems of welding the battery terminal to the nickel plate in the past, that is, the problem of poor welding, the inconvenience of welding work, the excessive assembly time caused by welding, and the problems of reduced assembly and productivity. Wait

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