Ceramic-Rich Composite Separators for High-Voltage Solid-State Batteries

被引：0
作者：
Vattappara, Kevin [1 ,2 ,3 ,4 ]
Finsterbusch, Martin [5 ]
Fattakhova-Rohlfing, Dina [2 ,3 ,4 ,5 ]
Urdampilleta, Idoia [1 ]
Kvasha, Andriy [1 ,2 ]
机构：
[1] CIDETEC, Basque Res & Technol Alliance BRTA, P Miramon 196, Donostia San Sebastian 20014, Spain
[2] ALISTORE European Res Inst, FR CNRS 3104, Hub Energie, 15 Rue Baudelocque, F-80039 Amiens, France
[3] Univ Duisburg Essen, Fac Engn, Lotharstr 1, D-47057 Duisburg, Germany
[4] Univ Duisburg Essen, Ctr Nanointegrat Duisburg Essen CENIDE, Lotharstr 1, D-47057 Duisburg, Germany
[5] Forschungszentrum Julich, Inst Energy Mat & Devices IMD Mat Synth & Proc 2, Wilhelm Johnen Str, D-52428 Julich, Germany
来源：
BATTERIES-BASEL | 2025年 / 11卷 / 02期
关键词：
solid-state electrolyte; solid-state battery; ceramic-rich composite separator; high voltage; composite electrolyte; POLYMER ELECTROLYTE; LITHIUM BATTERIES; IONIC-CONDUCTIVITY; STABILITY; SUCCINONITRILE; PROGRESS; WINDOW;
D O I：
10.3390/batteries11020042
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Composite solid electrolytes are gaining interest regarding their use in Li-metal solid-state batteries. Although high ceramic content improves the electrochemical stability of ceramic-rich composite separators (C-SCE), the polymeric matrix also plays a vital role. In the first generation of C-SCE separators with a PEO-based matrix, the addition of 90-95 wt% of Li6.45Al0.05La3Zr1.6Ta0.4O12 (LLZO) does not make C-SCE stable for cell cycling with high-voltage (HV) cathodes. For the next iteration, the objective was to find an HV-stable polymeric matrix for C-SCEs. Herein, we report results on optimizing C-SCE separators with different ceramics and polymers which can craft the system towards better stability with NMC622-based composite cathodes. Both LLZO and Li1.3Al0.3Ti1.7(PO4)3 (LATP) were utilized as ceramic components in C-SCE separators. Poly(diallyldimethylammonium) bis(trifluoromethanesulfonyl)imide (PDDA-TFSI) and poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) were used as polymers in the "polymer/LiTFSI/plasticizer"-based matrix. The initial phase of the selection criteria for the separator matrix involved assessing mechanical stability and ionic conductivity. Two optimized separator formulations were then tested for their electrochemical stability with both Li metal and HV composite cathodes. The results showed that Li/NMC622 cells with LP70_PVDF_HFP and LZ70_PDDA-TFSI separators exhibited more stable cycling performance compared to those with LZ90_PEO300k-based separators.
引用
收藏
页数：24
相关论文
共 63 条
[1]  
Ozawa K., Lithium-ion rechargeable batteries with LiCoO<sub>2</sub> and carbon electrodes: The LiCoO<sub>2</sub>/C system, Solid. State Ion, 69, pp. 212-221, (1994)
[2]  
Eftekhari A., Lithium Batteries for Electric Vehicles: From Economy to Research Strategy, ACS Sustain. Chem. Eng, 7, pp. 5602-5613, (2019)
[3]  
Lin Z., Liu T., Ai X., Liang C., Aligning academia and industry for unified battery performance metrics, Nat. Commun, 9, (2018)
[4]  
Takada K., Progress and prospective of solid-state lithium batteries, Acta Mater, 61, pp. 759-770, (2013)
[5]  
Hu Y.-S., Batteries: Getting solid, Nat. Energy, 1, (2016)
[6]  
Xie Z., Wu Z., An X., Yue X., Wang J., Abudula A., Guan G., Anode-free rechargeable lithium metal batteries: Progress and prospects, Energy Storage Mater, 32, pp. 386-401, (2020)
[7]  
Salvatierra R.V., Chen W., Tour J.M., What Can be Expected from “Anode-Free” Lithium Metal Batteries?, Adv. Energy Sustain. Res, 2, (2021)
[8]  
Yu T., Li G., Duan Y., Wu Y., Zhang T., Zhao X., Luo M., Liu Y., The research and industrialization progress and prospects of sodium ion battery, J. Alloys Compd, 958, (2023)
[9]  
Wang H., Ozkan C.S., Zhu H., Li X., Advances in solid-state batteries: Materials, interfaces, characterizations, and devices, MRS Bull, 48, pp. 1221-1229, (2023)
[10]  
Schmaltz T., Hartmann F., Wicke T., Weymann L., Neef C., Janek J., A Roadmap for Solid-State Batteries, Adv. Energy Mater, 13, (2023)
1234567