Breathable knitted spacer fabric triboelectric generator and method of making the same

Abstract

The invention relates to a breathable knitted spacer fabric friction generator and a preparation method thereof. The method comprises the steps of weaving a top layer and a bottom layer by using a three-wire plating process, controlling the yarn angles of surface yarns, intermediate yarns and ground yarns respectively such that the three yarns are sequentially arranged according to a certain positional relationship and then are woven, at the same time, in the weaving process, performing alternate tucking of spacer wires between a top layer ground yarn and a bottom layer ground yarn with a certain number of spacing stitches to form the breathable knitted spacer fabric friction generator, wherein a top layer surface yarn and a bottom layer surface yarn are at the outmost sides of a compositelayer and are insulating yarns, a top layer intermediate yarn and a bottom layer intermediate yarn are conductive yarns, the top layer ground yarn and the bottom layer ground yarn are opposite and are a triboelectric negative yarn and a triboelectric positive yarn correspondingly, and a spacer layer is composed of a set of spacer wires that are simultaneously connected to the top layer ground yarn and bottom layer ground yarn. The preparation method of the invention has the advantages of simple process and high weaving efficiency, and the obtained knitted spacer fabric friction generator hasgood gas permeability and has excellent promotion value.

Description

technical field

[0001] The invention belongs to the technical field of friction generators, and relates to a breathable knitted spacer fabric friction generator and a preparation method thereof. Background technique

[0002] Triboelectric nanogenerator is a new type of energy technology, which can collect mechanical energy in daily life and convert it into electrical energy, effectively expanding the energy source of generators, and has become a research hotspot in recent years. Triboelectric nanogenerators can generate power at the microwatt level, which can provide energy for fine and small electronic devices. At the same time, their own size can be made very small, which can meet the needs of more portable and miniaturized smart electronic devices in the future.

[0003] Document 1 (Zhang X S, Han M D, Wang R X, et al. Frequency-multiplication high-output triboelectric nanogenerator for sustainably powering biomedicalmicrosystems. [J]. Nano Letters, 2013, 13 (3): 1168.) d...

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