阴极
硫黄
材料科学
电解质
阳极
溶解
电极
储能
能量密度
锂离子电池的纳米结构
纳米技术
工程物理
化学工程
冶金
电气工程
化学
工程类
物理化学
功率(物理)
物理
量子力学
作者
Hui Li,Hanxi Yang,Xinping Ai
标识
DOI:10.1002/adma.202305038
摘要
Lithium-sulfur (Li-S) batteries have been investigated intensively as a post-Li-ion technology in the past decade; however, their realizable energy density and cycling performance are still far from satisfaction for commercial development. Although many extremely high-capacity and cycle-stable S cathodes and Li anodes are reported in literature, their use for practical Li-S batteries remains challenging due to the huge gap between the laboratory research and industrial applications. The laboratory research is usually conducted by use of a thin-film electrode with a low sulfur loading and high electrolyte/sulfur (E/S) ratios, while the practical batteries require a thick/high sulfur loading cathode and a low E/S ratio to achieve a desired energy density. To make this clear, the inherent problems of dissolution/deposition mechanism of conventional sulfur cathodes are analyzed from the viewpoint of polarization theory of porous electrode after a brief overview of the recent research progress on sulfur cathodes of Li-S batteries, and the possible strategies for building an electrochemically stable sulfur cathode are discussed for practically viable Li-S batteries from the authors' own understandings.
科研通智能强力驱动
Strongly Powered by AbleSci AI