Molecular Engineering toward Robust Solid Electrolyte Interphase for Lithium Metal Batteries

Author:

Sun Yu1,Li Jingchang1,Xu Sheng1,Zhou Haoshen1,Guo Shaohua12ORCID

Affiliation:

1. College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid‐State Microstructures Collaborative Innovation Centre of Advanced Microstructures Nanjing University Nanjing 210093 China

2. Lab of Power and Energy Storage Batteries Shenzhen Research Institute of Nanjing University Shenzhen 518000 China

Abstract

AbstractLithium‐metal batteries (LMBs) with high energy density are becoming increasingly important in global sustainability initiatives. However, uncontrollable dendrite seeds, inscrutable interfacial chemistry, and repetitively formed solid electrolyte interphase (SEI) have severely hindered the advancement of LMBs. Organic molecules have been ingeniously engineered to construct targeted SEI and effectively minimize the above issues. In this review, multiple organic molecules, including polymer, fluorinated molecules, and organosulfur, are comprehensively summarized and insights into how to construct the corresponding elastic, fluorine‐rich, and organosulfur‐containing SEIs are provided. A variety of meticulously selected cases are analyzed in depth to support the arguments of molecular design in SEI. Specifically, the evolution of organic molecules‐derived SEI is discussed and corresponding design principles are proposed, which are beneficial in guiding researchers to understand and architect SEI based on organic molecules. This review provides a design guideline for constructing organic molecule‐derived SEI and will inspire more researchers to concentrate on the exploitation of LMBs.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

Basic and Applied Basic Research Foundation of Guangdong Province

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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