A cyclic durable all-solid-state battery constructed with LiBH4-based electrolyte with high ionic conductivity at room temperature
By
Zhuang, XY (Zhuang, Xueye) [1] ; He, SM (He, Shiman) [1] ; Hu, L (Hu, Long) [1] ; Shi, Q (Shi, Qian) [3] ; Wang, H (Wang, Hui) [1] ; Hu, RZ (Hu, Renzong) [1] , [2]
(provided by Clarivate)
Source
JOURNAL OF ALLOYS AND COMPOUNDS
Volume1003
DOI10.1016/j.jallcom.2024.175707
Article Number
175707
Published
OCT 25 2024
Early Access
JUL 2024
Indexed
2024-08-11
Document Type
Article
Abstract
LiBH4 has been considered as a promising solid electrolyte for lithium-ion batteries. However, the low ionic conductivity at room temperature has been the biggest challenge of LiBH4 solid-state electrolyte (SSE) toward practical solid-state batteries. In this work, a ternary electrolyte is designed and prepared by milling LiBH4 with LiNH2 and interfacially decorated with g-C3N4. It is revealed that the soft dispersed phase of two-dimensional g-C3N4 can build an effective transportation network in the composite electrolyte, thereby decreasing the interfacial impedance and reducing the energy barrier for lithium ion diffusion. The optimized SSE, LiBH4-2LiNH(2)-gC(3)N(4)-10 % (LBN-CN-10 %), exhibits an ionic conductivity of 1.5x10(-3) S cm(-1), five orders of magnitude higher than that of the LiBH4 electrolyte at 30 degrees C. The LiIn symmetric cell with LBN-CN-10 % electrolyte delivers a low polarization of similar to 89 mV over 10,000 h. When assembling with Li4Ti5O12 cathode, the all-solid-state battery exhibits excellent cycling over 1000 cycles at 30 degree celsius, achieving a breakthrough in the lifetime of solid-state batteries with LiBH4 -based electrolyte. Moreover, the all-solid-state battery with LiNi0.8Co0.1Mn0.1O2 cathode also delivers a discharge plateau at 3.0 V, revealing the high voltage withstanding of LBN-CN-10 % electrolyte. This work provides new options for the development and practical application of room-temperature hydride allsolid-state batteries.
Keywords
Author KeywordsAll-solid-state batteryLithium batteryHydridesInterface engineeringLithium alloy anodes
Keywords PlusLICONDUCTORSSTABILITY
Author Information
Corresponding Address
Wang, Hui;
Hu, Renzong
(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 School of Materials Science and Engineering
South China University of Technology Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials
E-mail Addresses
mehwang@scut.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 Xian Technol Univ, Inst Sci & Technol New Energy, Xian 710021, Peoples R China
3 Guangdong Acad Sci, Inst New Mat, Key Lab Guangdong Modern Mat Surface Engn Technol, Guangzhou 510651, Peoples R China
E-mail Addresses
mehwang@scut.edu.cnmsrenzonghu@scut.edu.cn
Categories/ Classification
Research AreasChemistryMaterials ScienceMetallurgy & Metallurgical Engineering
Citation Topics
2 Chemistry
2.282 Hydrogen Chemistry & Storage
2.282.594 Hydrogen Storage
Sustainable Development Goals
07 Affordable and Clean Energy
Web of Science Categories
Chemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical Engineering