Aqueous zinc-manganese battery fiber with dual-functional protective layer and preparation method thereof

A zinc-manganese battery and protective layer technology, applied in the direction of carbon fiber, fiber treatment, fiber type, etc., can solve the problems of easy disintegration, falling off and dissolution of active materials, reduced battery cycle life, and low utilization of electrode materials, so as to speed up the electrode reaction process, improved electrochemical performance, and enhanced mechanical integrity
CN113036096BActive Publication Date: 2022-05-20FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2022-05-20

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Abstract

The invention discloses an aqueous zinc-manganese battery fiber with a dual-functional protective layer and a preparation method thereof. The fiber battery of the present invention uses a carbon nanotube fiber loaded with manganese dioxide / carbon nanotube film / 3,4-polyethylenedioxythiophene composite material as a positive electrode, a zinc-deposited carbon nanotube fiber as a negative electrode, and the two electrodes are intertwined with each other. The winding structure is formed by injecting liquid electrolyte and encapsulating; the preparation steps include: preparation of PEDOT / CNT / manganese dioxide / current collector positive electrode, preparation of flexible zinc negative electrode, and assembly of fiber zinc-manganese dioxide full battery. Among them, the carbon nanotube film provides a continuous conductive channel for electron transport during the charge and discharge process, and enhances the mechanical stability of the battery fiber. PEDOT can enhance the contact between the carbon tube film and manganese dioxide, reduce the undesirable dissolution of active materials and improve the efficiency of the battery. Conductivity. Weaving the fiber battery into fabric can produce flexible wearable electronic devices with excellent performance.
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Description

technical field

[0001] The invention belongs to the technical field of zinc-ion batteries, and in particular relates to a water system rechargeable zinc-manganese battery fiber and a preparation method thereof. Background technique

[0002] With the rapid development of social economy and the improvement of human living standards, people have put forward new urgent needs for portable and intelligent electronic devices, and the development of new flexible and wearable electronic devices with high performance, low cost and integration has become an important task in recent years. Research Hotspots [1] . These wearable electronic devices rely on indispensable high-performance power systems, which not only require small size and excellent flexibility, but also need to be able to adapt to frequent bending and deformation during use. However, traditional energy storage systems, such as supercapacitors, lithium-ion batteries, etc., are usually bulky and rigid, and it is difficult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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