Interface-Targeting Carrier-Catalytic Integrated Design Contributing to Lithium Dihalide-Rich SEI toward High Interface Stability for Long-Life Solid-State Lithium-Metal Batteries
By
Zhou, XY (Zhou, Xuanyi) [1] ; Huang, FF (Huang, Fenfen) [2] ; Zhang, XD (Zhang, Xuedong) [2] ; Zhang, B (Zhang, Biao) [2] ; Cui, YJ (Cui, Yingjie) [2] ; Wang, ZH (Wang, Zehua) [2] ; Yang, Q (Yang, Qiong) [2] ; Ma, ZS (Ma, Zengsheng) [2] ; Liu, J (Liu, Jun) [1]
(provided by Clarivate)
Source
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
DOI10.1002/anie.202401576
Early Access
APR 2024
Indexed
2024-04-28
Document Type
Article; Early Access
Abstract
The generation of solid electrolyte interphase (SEI) largely determines the comprehensive performance of all-solid-state batteries. Herein, a novel carrier-catalytic integrated design is strategically exploited to in situ construct a stable LiF-LiBr rich SEI by improving the electron transfer kinetics to accelerate the bond-breaking dynamics. Specifically, the high electron transport capacity of Br-TPOM skeleton increases the polarity of C-Br, thus promoting the generation of LiBr. Then, the enhancement of electron transfer kinetics further promotes the fracture of C-F from TFSI- to form LiF. Finally, the stable and homogeneous artificial-SEI with enriched lithium dihalide is constructed through the in situ co-growth mechanism of LiF and LiBr, which facilitatse the Li-ion transport kinetics and regulates the lithium deposition behavior. Impressively, the PEO-Br-TPOM paired with LiFePO4 delivers ultra-long cycling stability over 1000 cycles with 81 % capacity retention at 1 C while the pouch cells possess 88 % superior capacity retention after 550 cycles with initial discharge capacity of 145 mAh g-1at 0.2 C in the absence of external pressure. Even under stringent conditions, the practical pouch cells possess the practical capacity with stable electric quantities plateau in 30 cycles demonstrates its application potential in energy storage field.
Benefitting from the the design idea of Carrier-Catalytic integration mechanism, the C-Br bond of thiophene and C-F bond of TFSI- are easier to break due to the special electron transfer characteristic of thiophene skeleton in porous organic framework, the in situ co-growth LiF-LiBr rich SEI was finally constructed at Li/SPE interface through surgical targeted therapy, which ensures that the full cells paired with LFP cathode present excellent performances over 1000 cycles at 1 C. In addition, the pouch cells paired with LFP cathode present excellent performances over 550 cycles with a high-capacity retention of 88 %.+ image
Keywords
Author Keywordssolid electrolyte interphaselCarrier-CatalyticLiF-LiBr rich SEIelectron transfer kineticsco-growth
Keywords PlusPOLYMER ELECTROLYTESPHASE
Author Information
Corresponding Address
Liu, Jun
(corresponding author)
South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
Affiliation
South China University of Technology
South China University of Technology Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials
South China University of Technology School of Materials Science and Engineering
Corresponding Address
Zhang, Biao;
Ma, Zengsheng
(corresponding author)
Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Peoples R China
E-mail Addresses
biaozhang@xtu.edu.cnzsma@xtu.edu.cn
Addresses
1 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
2 Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Peoples R China
E-mail Addresses
biaozhang@xtu.edu.cnzsma@xtu.edu.cnmsjliu@scut.edu.cn
Categories/ Classification
Research AreasChemistry
Citation Topics
2 Chemistry
2.62 Electrochemistry
2.62.616 Lithium-Sulfur Batteries
Sustainable Development Goals
11 Sustainable Cities and Communities
Web of Science Categories
Chemistry, Multidisciplinary