Composite battery cell

Abstract

A composite battery cell includes a plurality of electricity supply elements connected to each other in series / parallel to form the electricity supply element groups. The electricity supply element groups are connected to each other in parallel / series and packed to form the battery cell with high capacity and high voltage. Each electricity supply element is an independent module and the electrolyte system does not circulate therebetween. There only have charges transferred rather than electrochemical reactions between the adjacent electricity supply elements. Therefore, the electrolyte decomposition would not occur result from the high voltage caused by connecting in series. Both series and parallel connection are made within the package of the battery cell to achieve high capacity and high voltage.

Description

technical field [0001] The invention relates to the technical field of battery cores, in particular to a high-voltage, high-capacity composite battery core that is connected in series and in parallel by means of independent modularized power supply units, and simultaneously completes the parallel and series connections inside the battery core. Background technique [0002] In recent years, as air pollution and global warming have intensified, electric vehicles have been given high expectations to replace existing fossil fuel vehicles in order to reduce the impact of emissions of carbon dioxide and other gases on the environment. At present, the main bottleneck of electric vehicles is still the part of the battery module; the general battery module is composed of multiple battery cells connected in series, parallel or mixed in series and parallel, so that the battery module has enough voltage and capacity for power supply. [0003] See first Figure 1A , Figure 1B , which ...

AI Technical Summary

Problems solved by technology

Whether the external connection method is connected by wire bonding, metal handle or metal rod, etc., the resistance value will increase and the performance of the overall battery module will be reduced, which will also reduce its reliability and safety; connection, it will inevitably occupy part of the volume of the battery module, which will reduce the unit capacity density

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