In-situ construction of PDOL electrolyte with dual-reinforced stable interface for high-voltage lithium metal batteries
2024-05
发表期刊SCIENCE CHINA CHEMISTRY (IF:10.4[JCR-2023],7.9[5-Year])
ISSN1674-7291
EISSN1869-1870
卷号67期号:5页码:1664-1671
发表状态已发表
DOI10.1007/s11426-023-1953-2
摘要

In-situ polymerized electrolytes significantly enhance the interfacial compatibility of lithium metal batteries (LMBs). Typically, in-situ polymerized 1,3-dioxolane (PDOL) exhibits low interfacial resistance, yet still suffers from low ionic conductivity and a narrow electrochemical stability window (ESW). Here, an ultra-stable PDOL-based polymer electrolyte is developed by incorporating plasticizers of tetramethylene sulfone (TMS) and fluorinated ethylene carbonate (FEC) into the 3D cross-linked network, achieving a significant enhancement in the transport capacity and efficiency of Li-ion. The ionic conductivity reaches 3.63×10-4 S cm-1 even at room temperature, and the transference number (t Li+) is even higher at 0.85. Furthermore, the ESW of this electrolyte can be increased to 4.5 V with the addition of TMS, which forms a thin and robust antioxidant cathode-electrolyte interface (CEI) on the surface of high-voltage LiCoO2. FEC generates an inorganic-rich solid-electrolyte interface (SEI) on the Li anode, which effectively inhibits the growth of lithium dendrites. Benefiting from the aforementioned advantages, the highvoltage lithium metal battery demonstrates outstanding long-cycle stability, with 93.2% capacity retention after 200 cycles. This work offers a straightforward and accessible method for the practical implementation of high energy density in-situ polymerized solid-state LMBs.
 

关键词solid polymer electrolyte, in-situ polymerization, PDOL, high-voltage LMBs
学科门类工学 ; 工学::材料科学与工程(可授工学、理学学位)
URL查看原文
收录类别SCIE ; SCI ; EI
语种英语
资助项目National Natural Science Foundation of China[52202327] ; Science and Technology Commission of Shanghai Municipality[22ZR1471300]
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:001214869600001
出版者SCIENCE PRESS
EI入藏号20241916046119
EI主题词Ionic conductivity
EI分类号542.4 Lithium and Alloys ; 549.1 Alkali Metals ; 701.1 Electricity: Basic Concepts and Phenomena ; 702.1.2 Secondary Batteries ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804.1 Organic Compounds ; 815.1.1 Organic Polymers ; 817.1 Polymer Products
原始文献类型Journal article (JA)
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/370067
专题物质科学与技术学院_硕士生
共同第一作者Wenqin Ma
通讯作者Wenqin Ma; Fuqiang Huang
作者单位
1.State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2.School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
3.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
第一作者单位物质科学与技术学院
第一作者的第一单位物质科学与技术学院
推荐引用方式
GB/T 7714
Yingkang Wu,Yuzhou Bai,Wujie Dong,et al. In-situ construction of PDOL electrolyte with dual-reinforced stable interface for high-voltage lithium metal batteries[J]. SCIENCE CHINA CHEMISTRY,2024,67(5):1664-1671.
APA Yingkang Wu,Yuzhou Bai,Wujie Dong,Xue Wang,Wenqin Ma,&Fuqiang Huang.(2024).In-situ construction of PDOL electrolyte with dual-reinforced stable interface for high-voltage lithium metal batteries.SCIENCE CHINA CHEMISTRY,67(5),1664-1671.
MLA Yingkang Wu,et al."In-situ construction of PDOL electrolyte with dual-reinforced stable interface for high-voltage lithium metal batteries".SCIENCE CHINA CHEMISTRY 67.5(2024):1664-1671.
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