Solar energy-based integrated device for power generation and energy storage and preparation method thereof

Abstract

The invention discloses an integrated device for power generation and energy storage based on solar energy and a preparation method thereof, comprising an antireflection film, an upper electrode, a gallium arsenide epitaxial layer, a back electrode, a metallization layer, a positive metal electrode, a positive electrode, and a positive electrode-electrolyte Mixed phase, inorganic solid electrolyte, negative electrode, negative metal electrode, metal protective layer; anti-reflection film, upper electrode, gallium arsenide epitaxial layer, back electrode constitute a multi-junction flexible gallium arsenide battery, positive metal electrode, positive electrode, positive electrode-electrolyte Mixed phase, inorganic solid electrolyte, negative electrode, and negative metal electrode constitute a solid-state lithium-ion battery. The multi-junction flexible GaAs battery and solid-state lithium-ion battery are connected in parallel. When no load is connected, the solid-state lithium-ion battery can convert the multi-junction flexible GaAs The power generated by the battery is stored until it is connected to the load. The multi-junction flexible gallium arsenide battery and the solid-state lithium-ion battery can supply power together to form the integration of power generation and energy storage, which greatly improves the product quality while ensuring the flexible structure. power ratio.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a solar energy-based integrated device for power generation and energy storage and a preparation method thereof. Background technique [0002] It is well known in the industry that GaAs solar cells play an important role in military and civilian fields. As countries around the world continue to develop space and near-ground solar energy resources, the demand for more efficient and stable solar cell products is gradually increasing, and multi-junction flexible gallium arsenide cells are characterized by high conversion efficiency, light weight, and rollability. , will also be greatly promoted and applied. For the application of GaAs solar cells, one of the important indicators is weight specific power, so flexible solar cells with higher mass specific power have become the current focus. [0003] At present, the solar power supply system is mainly used with flexible solar...

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Problems solved by technology

[0003] At present, the solar power supply system is mainly used with flexible solar cells and traditional lithium-ion batteries. The power supply system generally has serious defects such as low power density, heavy weight, flammability and explosion, inflexibility, and the need for independent energy storage space.

Therefore, the application in the fields of spacecraft and aircraft is limited

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