Issue

Vol. 17 (2025)

Functionalized Separators Boosting Electrochemical Performances for Lithium Batteries

https://doi.org/10.1007/s40820-024-01596-x
Zixin Fan
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Xiaoyu Chen
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Jingjing Shi
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Hui Nie
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Xiaoming Zhang
Shenzhen Senior Technology Material Co. Ltd., Shenzhen 518000, People’s Republic of China
Xingping Zhou
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Xiaolin Xie
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Zhigang Xue
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Corresponding Author: Zhigang Xue

zgxue@mail.hust.edu.cn

Nano-Micro Letters, Vol. 17 (2025), Article Number: 128

Abstract

The growing demands for energy storage systems, electric vehicles, and portable electronics have significantly pushed forward the need for safe and reliable lithium batteries. It is essential to design functional separators with improved mechanical and electrochemical characteristics. This review covers the improved mechanical and electrochemical performances as well as the advancements made in the design of separators utilizing a variety of techniques. In terms of electrolyte wettability and adhesion of the coating materials, we provide an overview of the current status of research on coated separators, in situ modified separators, and grafting modified separators, and elaborate additional performance parameters of interest. The characteristics of inorganics coated separators, organic framework coated separators and inorganic–organic coated separators from different fabrication methods are compared. Future directions regarding new modified materials, manufacturing process, quantitative analysis of adhesion and so on are proposed toward next-generation advanced lithium batteries.


Highlights:
1 The commonly used modification methods for separator of lithium batteries are summarized, which include surface coating, in situ modification and grafting modification.
2 The adhesion of coating materials with the separators and wettability of the modified separators prepared from the three methods are compared.
3 The challenges and future directions of separator modification are provided.

Keywords

Separators Polymer electrolytes Lithium batteries Electrochemical performances Functionalization
Fan, Zixin, Xiaoyu Chen, Jingjing Shi, Hui Nie, Xiaoming Zhang, Xingping Zhou, Xiaolin Xie, and Zhigang Xue. 2025. “Functionalized Separators Boosting Electrochemical Performances for Lithium Batteries”. Nano-Micro Letters 17 (February):128. https://doi.org/10.1007/s40820-024-01596-x.
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