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

一种基于无铅杂化钙钛矿的光充电锂离子电池:实现节能与高性能储能双突破

作　　者：Xiaojing Yin Guangran Di Ye Liu Guoqiang Wang Changhua Mi Yubo Kuang Xiaoqian Xiang Xin Sun Eran Edri Xiaojun Lv Meicheng Li 殷小净;邸广然;刘晔;王国强;米倡华;匡宇博;向小倩;孙鑫;Eran Edri;吕小军;李美成

机构地区：[1]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,School of New Energy,North China Electric Power University,Beijing 102206,China [2]IlseKatz Institute for Nanoscale Science and Technology,Department of Chemical Engineering,Ben-Gurion University of the Negev,Be'er-Sheva 8410501,Israel

出　　处：《Science China Materials》2025年第4期1091-1099,共9页中国科学(材料科学)(英文版)

基　　金：supported by the National Key R&D Program of China(2020YFA0710404 and 2022YFB4200301);the National Natural Science Foundation of China(52232008,51972110,52102245,52072121,52402254,22109002 and 22409061);the Beijing Natural Science Foundation(2222076,2222077 and Z240024);the Beijing Nova Program(20220484016);the Young Elite Scientists Sponsorship Program by CAST(2022QNRC001);the 2022 Strategic Research Key Project of Science and Technology Commission of the Ministry of Education;the Huaneng Group Headquarters Science and Technology Project(HNKJ20-H88);the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS2024-05);the Fundamental Research Funds for the Central Universities(2022MS029,2022MS02,2022MS031,2023MS042,2023MS047,2023MS042 and 2023MS047);the NCEPU"Double First-Class"Program。

摘　　要：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.清洁能源的开发和高效利用已成为推动当代社会可持续发展的核心技术之一.在这一背景下,光充电锂离子电池(Photo-Rechargeable Lithium-Ion Batteries,PR-LIB)因其能够同时解决太阳能间歇性问题和实现电池自充电的特性,受到了广泛关注.本研究设计并制备了一种基于无铅铋基杂化钙钛矿((CH3NH3)3Bi2I9)的光活性电极,该电极不仅具备高效的光电转换能力,还能够将太阳能以化学能的形式储存于电池内部,从而实现光能与电能的双重利用.实验结果表明,在光照条件下,基于该电极的PR-LIB放电容量从黑暗中的236 mAh g^(-1)显著提升至282.4 mAh g^(-1)(电流密度为50 mA g^(-1)).容量增长率达到19.7%.这一性能提升主要归因于铋基杂化钙钛矿材料在光照下产生的光生载流子,这些载流子有效促进了电极内部的电荷转移过程,并加速了锂离子的扩散动力学,从而显著降低了电荷转移电阻并提高了电池的整体效率.此外,在光照条件下,电池的充电电位降低了0.1 V(对应输入功率减少6%),而放电电压则升高了0.1 V(对应输出功率增加11.8%).本研究不仅揭示了铋基杂化钙钛矿在光充电电池中的独特优势,还为下一代高效、节能、环境友好的储能系统提供了新的设计思路,尤其是在便携式电子设备领域展现了广阔的应用前景.

关 键 词：lithium-ion batteries photo-rechargeable batteries hybrid perovskite photoactive electrodes energy conservation 

分 类 号：TM912[电气工程—电力电子与电力传动]