Carbon fiber composite material structure battery and management method

Abstract

The invention relates to a carbon fiber composite material structure battery and a management method. The carbon fiber composite material structure battery comprises a plurality of battery units, each battery unit comprises a positive electrode, a negative electrode and a solid electrolyte resin matrix, and the adjacent battery units are separated by an insulating barrier film; according to the management method of the carbon fiber composite material structure battery, the serial and parallel electrical connection relationship of each battery unit in the carbon fiber composite material structure battery is set through the programmable battery controller, the voltage of the battery units is detected, the voltage balance control is performed on the battery units in the charging process, and when the parallel unit groups fail, the battery units are charged. Therefore, the unit group can be cut off through a bypass switch and removed from the series electrical relationship, the charging voltage of the whole battery is reduced, battery reconstruction is realized, and unnecessary loss is reduced.

Description

technical field [0001] The invention relates to the technical field of batteries and battery management, in particular to a carbon fiber composite material structure battery and a management method. Background technique [0002] Carbon fiber has the advantages of high strength, high modulus and light weight. Carbon fiber reinforced resin matrix composites are widely used in aerospace and other fields. Carbon fiber not only has excellent mechanical properties, but also has excellent electrical conductivity and inherent characteristics of carbon materials. It also has two functions of structural bearing and electricity storage, which can further promote the development of lightweight composite structures. [0003] Batteries made of carbon fiber resin-based composites, also known as composite-structured batteries, rely primarily on metal ions, such as lithium ions, to move between the positive and negative electrodes of the battery. The working mechanism of charging and discha...

AI Technical Summary

Problems solved by technology

The working mechanism determines that the voltage and current of such battery cells are low, and most of them can only be used as auxiliary power components, such as providing LED lighting, etc.; and the overall composite material structure is used as a battery cell, if the structure body is partially damaged or fails , will affect the performance of the overall battery unit; in addition, different battery units cannot be flexibly connected in series and parallel. During the charging process, there is a voltage difference between different battery units. If the control is unbalanced, it will cause dangerous situations such as overshoot of the battery unit. ; If a battery unit fails, such as the voltage is too low or too high, it will affect the application of the entire series-parallel unit group

[0005] At present, the research on carbon fiber composite structural batteries mainly focuses on the surface activation modification of carbon fiber materials and the improvement of the conductivity of solid electrolytes, as well as the balanced and optimal design of the mechanical properties of the overall structure. , failure detection and refactoring design, etc.

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