Sulfonylimide based single lithium-ion conducting polymer electrolytes boosting high-safety and high-energy-density lithium batteries

IF 15 1区 工程技术 Q1 ENERGY & FUELS Etransportation Pub Date : 2024-02-01 DOI:10.1016/j.etran.2024.100318
Chaojie Chen , Zulei Li , Xiaofan Du , Qian Zhou , Pengxian Han , Guanglei Cui
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Abstract

Single-ion conducting polymer electrolytes (SICPEs) have received much attention due to their excellent Li+ transference numbers, which can effectively reduce the concentration gradient and inhibit the growth of lithium dendrites. Recently, sulfonimide based SICPEs with superior ionic conductivity have become the most widely studied SICPEs by virtue of their highly delocalized anions and diverse molecular designability. In this review, the molecular design of sulfonimide based SICPEs is summarized in terms of anionic groups and polymer backbones of SICPEs. Then, the potential influence of SICPEs on battery safety is discussed from electrolyte level and interface level, respectively. It is believed that the battery safety and interface compatibility need to be given sufficient attention for SICPEs, in addition to the ion conductivity and Li+ transference number. It is hoped that this review can inspire a deeper consideration on SICPEs, which can pave a new pathway for the high-safety and high-energy-density lithium batteries.

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基于磺酰亚胺的单一锂离子导电聚合物电解质促进高安全性和高能量密度锂电池的发展
单离子导电聚合物电解质(SICPEs)因其出色的锂+转移数量,可有效降低浓度梯度并抑制锂枝晶的生长而备受关注。近来,磺酰亚胺基 SICPE 凭借其高度去局域化的阴离子和多样化的分子设计能力,成为研究最为广泛的 SICPE,具有卓越的离子传导性。本综述从 SICPE 的阴离子基团和聚合物骨架两方面概述了磺酰亚胺基 SICPE 的分子设计。然后,分别从电解质层面和界面层面讨论了 SICPE 对电池安全性的潜在影响。我们认为,对于 SICPE 而言,除了离子导电性和 Li+ 传递数之外,电池安全性和界面兼容性也需要引起足够的重视。希望这篇综述能启发人们对 SICPE 进行更深入的思考,从而为高安全性和高能量密度锂电池铺平一条新的道路。
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来源期刊
Etransportation
Etransportation Engineering-Automotive Engineering
CiteScore
19.80
自引率
12.60%
发文量
57
审稿时长
39 days
期刊介绍: eTransportation is a scholarly journal that aims to advance knowledge in the field of electric transportation. It focuses on all modes of transportation that utilize electricity as their primary source of energy, including electric vehicles, trains, ships, and aircraft. The journal covers all stages of research, development, and testing of new technologies, systems, and devices related to electrical transportation. The journal welcomes the use of simulation and analysis tools at the system, transport, or device level. Its primary emphasis is on the study of the electrical and electronic aspects of transportation systems. However, it also considers research on mechanical parts or subsystems of vehicles if there is a clear interaction with electrical or electronic equipment. Please note that this journal excludes other aspects such as sociological, political, regulatory, or environmental factors from its scope.
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