Carbon fiber composite structural battery and management method

Abstract

The invention relates to a battery with a carbon fiber composite structure and a management method; the battery with a carbon fiber composite structure includes a plurality of battery cells, each battery cell includes a positive electrode, a negative electrode, and a solid electrolyte resin matrix, and the adjacent battery cells are separated by insulating barriers. Membrane separation; the management method of the carbon fiber composite structure battery sets the series and parallel electrical connection relationship of each battery unit in the carbon fiber composite structure battery through the programmable battery controller, detects the voltage of the battery unit, and performs voltage balance on the battery unit during the charging process Control, when the parallel unit group fails, the unit group can be cut off through the bypass switch, removed from the series electrical relationship, and the overall charging voltage of the battery is reduced to realize battery reconstruction and reduce unnecessary losses.

Description

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

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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