Photovoltaic technologies for indoor energy harvesting have attracted considerable attention because of the unique power requirements associated with the Internet of Things. However, intermittent power supplies, low light intensities, and security issues are barriers to the development of indoor photovoltaic technology. Herein, we demonstrate an all-solid-state photo-rechargeable battery system for indoor energy harvesting and storage based on an all-inorganic CsPbI₂Br perovskite solar cell module and an all-solid-state lithium − sulfur battery. This energy conversion and storage unit exhibits an excellent overall energy conversion and storage efficiency of 11.2 % under LED illumination, as well as a high electrochemical storage capacity of 1585.3 mAh g⁻¹. Moreover, the unit also shows good safety and stability after 200 h of photo-charge and galvanostatic discharge cycles due to the thermal stability of the solid-state CsPbI₂Br perovskite and sulfide electrolyte. Even in the thermal aging tests at 60°C and 90°C, the photo-rechargeable battery still delivers superior high and steady performance for 200 h.

由于与物联网相关的独特电力要求，用于室内能量收集的光伏技术引起了相当大的关注。然而，间歇性供电、低光照强度和安全问题是室内光伏技术发展的障碍。在此，我们展示了一种基于全无机 CsPbI ₂ Br 钙钛矿太阳能电池模块和全固态锂硫电池的用于室内能量收集和存储的全固态光可充电电池系统。该能量转换和存储单元在 LED 照明下表现出 11.2% 的出色整体能量转换和存储效率，以及 1585.3 mAh g ^{−1的高电化学存储容量}. 此外，由于固态 CsPbI ₂ Br 钙钛矿和硫化物电解质的热稳定性，该装置在 200 小时的光充电和恒电流放电循环后也表现出良好的安全性和稳定性。即使在 60°C 和 90°C 的热老化测试中，光充电电池仍可提供 200 小时的卓越高稳定性能。