摘要
Flexible energy storage devices are becoming indispensable new elements of wearable electronics to improve our living qualities.As the main energy storage devices,lithium-ion batteries(LIBs)are gradually approaching their theoretical limit in terms of energy density.In recent years,lithium metal batteries(LMBs)with metallic Li as the anode are revived due to the extremely high energy density,and are considered to be one of the ideal alternatives for the next generation of flexible power supply.In this review,key technologies and scientific problems to be overcome for flexible LMBs are discussed.Then,the recent advances in flexible LMBs,including the design of flexible Li metal anodes,electrolytes,cathodes and interlayers,are summarized.In addition,we have summed up the research progress of flexible device configurations,and emphasized the importance of flexibility evaluation and functionality integration to ensure the wearing safety in complex environment.Finally,the challenges and future development of flexible LMBs are summarized and prospected.
柔性储能设备已成为改善人们生活品质不可缺少的新型可穿戴电子元件.锂离子电池作为主要的储能电源,其能量密度正逐渐接近其理论极限.近年来,以金属锂为负极的锂金属电池(LMBs)因极高的能量密度而得以复兴,有望成为新一代柔性电源的理想替代品之一.本文首先讨论了柔性锂金属电池需要解决的关键技术和科学问题,然后综述了柔性金属锂电池的最新进展,包括柔性锂金属负极、电解质、正极材料及其中间层的设计.本文还总结了柔性电池结构的研究进展,并强调了柔性性能评估和功能性集成对于确保复杂环境中佩戴安全性的重要性.最后,提出了柔性锂金属电池面临的挑战并对其未来发展方向进行了总结和展望.
作者
Yongya Zhang
Lilan Yi
Jinping Zhang
Xin Wang
Xincheng Hu
Wei Wei
Hua Wang
张永亚;易礼兰;张金平;王鑫;胡新成;魏伟;王华(School of Chemistry and Chemical Engineering,Henan Engineering Center of New Energy Battery Materials,Shangqiu Normal University,Shangqiu 476000,China;School of Chemistry,Beijing Advanced Innovation Center for Biomedical Engineering,Beihang University,Beijing 100191,China;School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China)
基金
financially supported by the National Natural Science Foundation of China(U1804138,U1904195,and 22104079)
the Program for Science&Technology Innovative Research Team(20IRTSTHN007)
the Innovation Talents(22HASTIT028)
Key Scientific Research(22A150052)in the Universities of Henan Province
the Key Science and Technology Research of Henan Province(212102210654)。
