Integrated micro-nano energy recovery and storage chip and preparation method thereof

Abstract

The invention discloses an integrated micro-nano energy recovery and storage chip and a preparation method thereof. The chip is composed of a base, a middle layer, a top layer, a power generation positive electrode module, a power generation negative electrode module and a capacitor module from bottom to top, wherein the power generation positive electrode module, the power generation negative electrode module and the capacitor module are nested in the three-layer structure of the base, the middle layer and the top layer, porous three-dimensional graphene and corresponding positive and negative particles are contained in the power generation positive electrode module and the power generation negative electrode module respectively, the particles collide and rub with the wall surface of thethree-dimensional graphene to generate positive and negative charges respectively when a chip is vibrated, the positive and negative charges are processed by a power management module so as to supplypower to the outside, and the capacitor module is used for storing electric energy converted from vibration energy when a power generation power is greater than a power supply power, and supplementingpower outwards when the power generation power is insufficient. According to the invention, energy recovery and storage elements are integrated in a chip, so that power can be continuously supplied to the outside and surplus electric quantity can be stored; the chip is small in size and suitable for mobile consumer electronic products, the Internet of Things and the like; and the chip is producedin batches by a semiconductor process, is low in cost and is suitable for large-scale application.

Description

technical field [0001] The invention relates to the technical field of energy recovery and storage, in particular to an integrated micro-nano energy recovery and storage chip based on three-dimensional graphene and a preparation method thereof. Background technique [0002] The rapid development of mobile consumer electronics and the Internet of Things is accompanied by the demand for mobile energy supply or distributed energy supply. At present, mobile consumer electronics fields such as mobile phones, laptops, and smart watches mainly rely on batteries for power supply; IoT nodes are powered by grids and batteries. The problems of battery power supply include limited battery life, limited battery charge and discharge times, and easy performance degradation. For geological monitoring, hydrological monitoring and other field operation IoT systems, the cost of power grid power supply is too high to be practical, and battery power supply is difficult to ensure continuous powe...

AI Technical Summary

Problems solved by technology

The problems of battery power supply include limited battery life, limited battery charge and discharge times, and easy performance degradation. For field operation IoT systems such as geological monitoring and hydrological monitoring, the cost of power grid power supply is too high to be practical, and battery power supply is difficult to ensure continuous power supply for a long time

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