Due to the variable nature of the photovoltaic generation, energy storage is imperative, and the combination of both in one device is appealing for more efficient and easy‐to‐use devices. Among the myriads of proposed approaches, there are multiple challenges to overcome to make these solutions realistic alternatives to current systems. This paper classifies and identifies previous efforts to achieve integrated photovoltaic storage devices. Moreover, the gaps and future perspectives are analysed to give an overview of the field, paying attention to low‐power devices (<10 W) as well as high‐power devices (>10 W). We focus on devices that combine solar cells with supercapacitors or batteries, providing information about the structure, materials used, and performance. On the one hand, small power devices must concentrate on including power electronics to increase the efficiency of the system as well as ensuring a safe operation; likewise, more attention should be drawn to validate the feasibility of novel concepts by carrying out more realistic and standardised tests, including long‐term testing. On the other hand, high‐power devices must be researched thoroughly to evaluate the impact of high temperatures on energy storage and solar module ageing; furthermore, optimum system sizing is a relevant topic that deserves attention and its relation to modular solutions. This critical literature review serves as a guide to understand the characteristics of the approaches followed to integrate photovoltaic devices and storage in one device, shedding light on the improvements required to develop more robust products for a sustainable future.

中文翻译：

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将光伏存储系统集成到一个设备中：严格审查

由于光伏发电的可变性，必须进行能量存储，并且将两者结合在一台设备中对于更高效，更易于使用的设备具有吸引力。在众多提议的方法中，要使这些解决方案成为当前系统的现实替代方案，有许多挑战需要克服。本文对实现集成光伏存储设备的先前工作进行了分类和识别。此外，分析了差距和未来前景，以概述该领域，同时关注低功率器件（<10 W）以及大功率器件（> 10 W）。我们专注于将太阳能电池与超级电容器或电池结合在一起的设备，提供有关结构，所用材料和性能的信息。一方面，小型功率设备必须集中精力包括功率电子设备，以提高系统效率并确保安全运行；同样，应引起更多关注，通过进行更现实，更标准化的测试（包括长期测试）来验证新概念的可行性。另一方面，必须彻底研究大功率设备，以评估高温对能量存储和太阳能电池组件老化的影响；此外，最佳的系统规模是一个值得关注的主题，并且与模块化解决方案有关。这篇重要的文献综述可作为指南，以了解将光伏设备和存储设备集成到一个设备中所遵循的方法的特点，