An energy-saving photo-rechargeable lithium-ion battery based on lead-free hybrid perovskite

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2025-02-28 DOI:10.1007/s40843-024-3225-3

Xiaojing Yin (, ), Guangran Di (, ), Ye Liu (, ), Guoqiang Wang (, ), Changhua Mi (, ), Yubo Kuang (, ), Xiaoqian Xiang (, ), Xin Sun (, ), Eran Edri, Xiaojun Lv (, ), Meicheng Li (, )

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引用次数: 0

Abstract

The development and utilization of clean energy have emerged as indispensable technologies within contemporary societal structures, and the development of photo-rechargeable lithium-ion batteries (PR-LIB) holds new promise for simultaneously eliminating solar energy volatility limitations and realizing battery self-charging. In this study, we present photoactive electrodes consisting of lead-free bismuth-based hybrid perovskite that combine the dual functions of photovoltaic conversion and energy storage. It was found that the PR-LIB based on this electrode increased the discharge capacity of the battery from 236.0 mA h g⁻¹ in the dark to 282.4 mA h g⁻¹ (a current density of 50 mA g⁻¹) with a growth rate of 19.7% under light conditions. The photogenerated carriers generated by the methylammonium bismuth iodide (MBI) effectively accelerated the charge transfer and lithium-ion diffusion, which contributed to the increase of the capacity and the decrease of the charge-transfer resistance. Furthermore, the charging potential decreased by 0.1 V (6% reduction in input power) while the discharging potential increased by 0.1 V (11.8% increase in output power) under light. This work demonstrates the potential of PR-LIB as an efficient, energy-saving battery in portable electronic devices.

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一种基于无铅混合钙钛矿的节能光充电锂离子电池

清洁能源的开发和利用已经成为当代社会结构中不可或缺的技术，而光可充电锂离子电池（PR-LIB）的开发为同时消除太阳能波动性限制和实现电池自充电带来了新的希望。在这项研究中，我们提出了由无铅铋基杂化钙钛矿组成的光活性电极，该电极结合了光伏转换和储能的双重功能。结果表明，该电极将电池的放电容量从黑暗条件下的236.0 mA h g−1提高到光照条件下的282.4 mA h g−1（电流密度为50 mA g−1），增长率为19.7%。由碘化铋甲基铵（MBI）产生的光生载流子有效地加速了电荷转移和锂离子的扩散，从而提高了容量，降低了电荷转移电阻。此外，在光照下，充电电位降低了0.1 V（输入功率降低了6%），放电电位增加了0.1 V（输出功率增加了11.8%）。这项工作证明了PR-LIB作为便携式电子设备中高效节能电池的潜力。

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.