Integrated energy supply product, preparation method thereof and device

Abstract

The invention provides an integrated energy supply product. The product integrates a III-V thin film solar battery and an all-solid-state thin film lithium battery; the positive electrode of the solarbattery is connected with the positive electrode current collector of the lithium battery; the negative electrode of the solar battery is connected with the current collector of the negative electrode Li of the lithium battery; and the positive electrode current collector and negative electrode current collector of the lithium battery are connected with a load through wires. The invention also provides a preparation method of the energy supply product and a device for preparing the energy supply product. The device comprises a glove box; and a magnetron sputtering coating device, a vacuum evaporation device and a hot pressing device are integrated in the glove box. According to the energy supply product of the invention, the III-V thin film solar battery is adopted; the III-V thin film solar battery is provided with a light-weight flexible substrate; the overall thickness of the solar battery is smaller than 200 micrometers; the weight-to-area ratio of the solar battery is 300 g / m<2>and is much smaller than the weight-area ratio of a crystalline silicon battery; the all-solid-state thin film lithium battery is adopted, and is provided with a flexible substrate; the thickness of the entire energy supply product is smaller than 1 mm; and the energy supply product is flexible, light-weight and easy to carry.

Description

technical field [0001] The invention belongs to the field of energy technology, and in particular relates to an energy supply product integrated with a solar battery and a lithium battery, and a preparation method and equipment thereof. Background technique [0002] With the increasing thinness of electronic products, the power supply devices are increasingly required to be thin, safe, and efficient. At present, most of the batteries in electronic products such as mobile phones and computers have problems such as short battery life, large volume, and heavy weight, which restrict the development of electronic products. the bottleneck. In order to achieve a longer battery life, some inventions combine solar cells with lithium batteries, which can use the continuous energy of the sun's light source to achieve unlimited battery life, such as patents CN 105789723A and CN105789372A, which combine copper indium gallium selenide flexible solar cells The combination of batteries can...

AI Technical Summary

Problems solved by technology

[0004] Traditional batteries have safety hazards

In the high temperature environment of traditional lithium batteries, the liquid electrolyte is easy to release chemical gas, which leads to the expansion of the battery and the growth of common lithium dendrites, etc., which are the causes of battery explosion.

When a traditional lithium battery is integrated with a solar cell, the temperature of the battery is likely to reach 40-50°C due to long-term exposure to the sun. The common liquid electrolyte is usually an organic solution of lithium salt, which is easy to release gas at high temperature. In the environment, bulges or even explosions will occur, causing harm to the human body

[0005] Traditional energy supply equipment also has the disadvantage of large volume and heavy weight, which is not conducive to the miniaturization and portability of electronic equipment

In addition, traditional energy supply equipment is generally not flexible. In the past, there were also thin-film lithium batteries prepared by spraying. The degree of bendability is small, and it is not flexible in the true sense. Easy to cause battery failure

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