Modification of NASICON electrolyte in solid sodium-ion batteries—A short review

Abstract

In recent years, the development and research of electrochemical energy storage systems that can efficiently transform chemical energy into electrical energy with a long service life have become a key area of study. Sodium-ion batteries, leveraging their chemical similarity to lithium-ion batteries, along with their abundant resources and low cost, are seen as a viable alternative to lithium-ion batteries. Additionally, all-solid-state sodium-ion batteries have drawn significant attention due to safety considerations. Among the solid electrolytes for all-solid-state sodium-ion batteries, the NASICON solid-state electrolyte emerges as one of the most promising choices for sodium battery solid electrolytes. However, to date, there has not been a comprehensive review summarizing the existing problems of NASICON electrolyte materials and the corresponding specific modification methods. This review simply summarizes the present issues of NASICON for all-solid-state sodium-ion batteries, such as, the low ionic conductivity, the poor interface stability and compatibility, and the dendrite formation. Then, the corresponding solutions to address these issues are discussed, including the ion doping, the interface modification, the sintering parameters optimization, and the composite electrolytes regulation. Finally, the perspectives of NASICON solid-state electrolyte are discussed.

References

[[1]] Hu Z-w, Liu L-y, Wang X, et al.. Current progress of anode-free rechargeable sodium metal batteries: Origin, challenges, strategies, and perspectives [J]. Advanced Functional Materials, 2024, 34(22): 2313823.

[[2]] Carbonate Lithium Industry Network. [N/OL] http://tsl.100ppi.com.

[[3]] Li W-j, Han C, Gu Q-f, et al.. Three-dimensional electronic network assisted by TiN conductive pillars and chemical adsorption to boost the electrochemical performance of red phosphorus [J]. ACS Nano, 2020, 14(4): 4609-4617.

[[4]] Li W-j, Han C, Wang W-l, et al.. Commercial prospects of existing cathode materials for sodium ion storage [J]. Advanced Energy Materials, 2017, 7(24): 1700274.

[[5]] Li W-j, Han C, Wang W-l, et al.. Stress distortion restraint to boost the sodium ion storage performance of a novel binary hexacyanoferrate [J]. Advanced Energy Materials, 2020, 10(4): 1903006.

[[6]] Wang F, Jiang Z-m, Zhang Y-y, et al.. Revitalizing sodium-ion batteries via controllable microstructures and advanced electrolytes for hard carbon [J]. eScience, 2024, 4(3): 100181.

[[7]] Cao X-x, Zhou J, Pan A-q, et al.. Research progress of phosphate cathode materials for sodium ion batteries [J]. Acta Physico-Chimica Sinica, 2020, 36(5): 24-49

[[8]] Wen C-jian. Composition, structure and conductivity of NASICON Na₃Zr₂Si₂PO₁₂ ceramic electrolyte [D], 2023 Changsha Central South University (in Chinese)

[[9]] Wang S. Construction and electrochemical properties of sodium ferric vanadium phosphate as anode material for sodium ion batteries [D], 2022 Changsha Central South University (in Chinese)

[[10]] Xu L-q, Li J-y, Liu C, et al.. Research progress in inorganic solid-state electrolytes for sodium-ion batteries [J]. Acta Physico-Chimica Sinica, 2020, 36(5): 75-82

[[11]] Anantharamulu N, Koteswara Rao K, Rambabu G, et al.. A wide-ranging review on Nasicon type materials [J]. Journal of Materials Science, 2011, 46(9): 2821-2837.

[[12]] Goodenough J B, Hong H Y P, Kafalas J A. Fast Na⁺-ion transport in skeleton structures [J]. Materials Research Bulletin, 1976, 11(2): 203-220.

[[13]] Hong H Y P. Crystal structures and crystal chemistry in the system Na_1+xZr₂Si_xP_3−xO₁₂ [J]. Materials Research Bulletin, 1976, 11(2): 173-182.

[[14]] Hua Z-s, Feng X-j, Wang X-r, et al.. The effect of ion doping on the electrochemical properties of NASICON type compounds [J]. J Chin Ceram Soc, 2017, 45(6): 756-764

[[15]] Deng Y, Eames C, Nguyen L H B, et al.. Crystal structures, local atomic environments, and ion diffusion mechanisms of scandium-substituted sodium superionic conductor (NASICON) solid electrolytes [J]. Chemistry of Materials, 2018, 30(8): 2618-2630.

[[16]] Jolley A G, Taylor D D, Schreiber N J, et al.. Structural investigation of monoclinic-rhombohedral phase transition in Na₃Zr₂Si₂PO₁₂ and doped NASICON [J]. J Am Ceram Soc, 2015, 98(9): 2902-2907.

[[17]] Hull S. Superionics: Crystal structures and conduction processes [J]. Reports on Progress in Physics, 2004, 67(7): 1233-1314.

[[18]] Liu G-z, Yang J, Wu J-h, et al.. Inorganic sodium solid electrolytes: Structure design, interface engineering and application [J]. Advanced Materials, 2024, 36(37): 2311475.

[[19]] He X-f, Zhu Y-z, Mo Y-fei. Origin of fast ion diffusion in super-ionic conductors [J]. Nature Communications, 2017, 8: 15893.

[[20]] Zhang Z, Zou Z, Kaup K. Correlated migration invokes higher Na⁺-ion conductivity in NaSICON-type solid electrolytes [J]. Adv. Energy Mater, 2019, 9: 1902373.

[[21]] Wang H, Zhao G-f, Wang S-m, et al.. Enhanced ionic conductivity of a Na₃Zr₂Si₂PO₁₂ solid electrolyte with Na₂SiO₃ obtained by liquid phase sintering for solid-state Na⁺ batteries [J]. Nanoscale, 2022, 14(3): 823-832.

[[22]] Park H, Jung K, Nezafati M, et al.. Sodium ion diffusion in nasicon (Na₃Zr₂Si₂PO₁₂) solid electrolytes: Effects of excess sodium [J]. ACS Applied Materials & Interfaces, 2016, 8(41): 27814-27824.

[[23]] Li C, Li R, Liu K-n, et al.. NaSICON: A promising solid electrolyte for solid-state sodium batteries [J]. Interdisciplinary Materials, 2022, 1(3): 396-416.

[[24]] Lu H-y, Li W-jie. The electrolyte solvation and interfacial chemistry for anode-free sodium metal batteries [J]. Chinese Journal of Structural Chemistry, 2024, 43(11): 100334.

[[25]] Zhou C-t, Bag S, Thangadurai V. Engineering materials for progressive all-solid-state Na batteries [J]. ACS Energy Letters, 2018, 3(9): 2181-2198.

[[26]] Ma Q-l, Guin M, Naqash S, et al.. Scandium-substituted Na₃Zr₂(SiO₄)₂(PO₄) prepared by a solution-assisted solid-state reaction method as sodium-ion conductors [J]. Chemistry of Materials, 2016, 28(13): 4821-4828.

[[27]] Oh J A S, He L, Plewa A, et al.. Composite NASICON (Na₃Zr₂Si₂PO₁₂) solid-state electrolyte with enhanced Na⁺ ionic conductivity: Effect of liquid phase sintering [J]. ACS Applied Materials & Interfaces, 2019, 11(43): 40125-40133.

[[28]] Fu H-y, Yin Q-y, Huang Y, et al.. Reducing interfacial resistance by Na-SiO₂ composite anode for NASICON-based solid-state sodium battery [J]. ACS Materials Letters, 2020, 2(2): 127-132.

[[29]] Ma Q-l, Tietz F. Solid-state electrolyte materials for sodium batteries: Towards practical applications [J]. ChemElectroChem, 2020, 7(13): 2693-2713.

[[30]] Xing Y-zhi. Research on NASICON solid electrolyte of sodium ion Battery [D], 2022 Tianjin Tianjin University (in Chinese)

[[31]] Cheng Z, Liu M, Ganapathy S, et al.. Revealing the impact of space-charge layers on the Li-ion transport in all-solid-state batteries [J]. Joule, 2020, 4(6): 1311-1323.

[[32]] Cai Shen. NASICON electrolyte interface optimization and its application in solid state sodium batteries [D], 2022 Tangshan North China University of Science and Technology (in Chniese)

[[33]] Su J-w, Liu L-m, Zhou X-l, et al.. Research Progress of NASICON type sodium ion conductor solid electrolyte [J]. Journal of the Chinese Ceramics, 2023, 51(6): 1611-1625

[[34]] Tian H Q. Study on synthesis and electrochemical properties of sodium ion solid electrolyte [D], 2022 Tangshan North China University of Science and Technology (in Chinese)

[[35]] Li F-p, Hou M-j, Zhao L-q, et al.. Electrolyte and interface engineering for solid-state sodium batteries [J]. Energy Storage Materials, 2024, 65: 103181.

[[36]] TAKAHASHI T, KUWABARA K, SHIBATA M. Solid-state ionics -conductivities of Na⁺ ion conductors based on NASICON [J]. Solid State Ionics, 1(3, 4): 163–175. DOI: 1016/0167-2738(80)90001-6.

[[37]] Shen L, Yang J, Liu G, et al.. High ionic conductivity and dendrite-resistant NASICON solid electrolyte for all-solidstate sodium batteries [J]. Materials Today Energy, 2021, 20: 100691.

[[38]] BENNOUNA L, ARSALANE S, BROCHU R. Spécificités des ions NbIV et MoIVdans les monophosphates de type Nasicon [J]. Journal of Solid State Chemistry, 1(114): 224–229.

[[39]] Jolley A G, Cohn G, Hitz G T, et al.. Improving the ionic conductivity of NASICON through aliovalent cation substitution of Na₃Zr₂Si₂PO12 [J]. Ionics, 2015, 21(11): 3031-3038.

[[40]] Chakir M, El Jazouli A, De Waal D. Synthesis, crystal structure and spectroscopy properties of Na₃AZr(PO₄)₃ (A=Mg, Ni) and Li_2.6Na_0.4NiZr(PO₄)₃ phosphates [J]. Journal of Solid State Chemistry, 2006, 179(6): 1883-1891.

[[41]] Ma C, Wang L-w, Zhang Y-y, et al.. Mixed-potential type triethylamine sensor based on NASICON utilizing SmMO₃ (M=Al, Cr, Co) sensing electrodes [J]. Sensors and Actuators B: Chemical, 2019, 284: 110-117.

[[42]] Bonizzoni S, Ferrara C, Berbenni V, et al.. NASICON-type polymer-in-ceramic composite electrolytes for lithium batteries [J]. Physical Chemistry Chemical Physics, 2019, 21(11): 6142-6149.

[[43]] Maldonado-Manso P, Aranda M A G, Bruque S, et al.. Nominal vs. actual stoichiometries in Al-doped NASICONs: A study of the Na_1.4Al_0.4M1.6(PO₄)₃ (M=Ge, Sn, Ti, Hf, Zr) family [J]. Solid State Ionics, 2005, 176(1718): 1613-1625.

[[44]] Chen D, Luo F, Zhou W-c, et al.. Influence of Nb⁵⁺, Ti⁴⁺, Y3+ and Zn²⁺ doped Na₃Zr₂Si₂PO₁₂ solid electrolyte on its conductivity [J]. Journal of Alloys and Compounds, 2018, 757: 348-355.

[[45]] Ran L-b, Baktash A, Li M, et al.. Sc, Ge co-doping NASICON boosts solid-state sodium ion batteries’ performance [J]. Energy Storage Materials, 2021, 40: 282-291.

[[46]] Aatiq A, Bakri R, Sakulich A R. Preparation and crystal structure of Sb_1.5In_0.5In (PO₄)₃ [J]. Powder Diffraction, 2008, 23(3): 232-240.

[[47]] Bykov D M, Konings R J M, Apostolidis C, et al.. Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family: Crystal structure, thermal behaviour and Mössbauer spectroscopy studies [J]. Dalton Transactions, 2017, 46(35): 11626-11635.

[[48]] DEDELMAS C, VIALA J C, OLAZCUAGA R, et al. Ioni conductivity in Nasicontype phases Na_1+xZr_2−xL_x(PO₄)₃ (L= Cr, In, Yb) [J] 4(3): 209–214.

[[49]] Miyajima Y. Ionic conductivity of NASICON-type Na_1+xMxZr_2−xP₃O₁₂ (M: Yb, Er, Dy) [J]. Solid State Ionics, 1996, 84(12): 61-64.

[[50]] Zhang Q-x, Wen Z-y, Liu Y, et al.. Na⁺ ion conductors of glass-ceramics in the system Na_1+xAl_xGe_2−xP₃O₁₂ (0.3≤x≤1.0) [J]. Journal of Alloys and Compounds, 2009, 479(12): 494-499.

[[51]] PERTHUIS H, COLOMBAN P. Well densified NASICON type ceramics, elaborated using sol-gel process and sintering at low temperatures[J]. Mater. Res Bull, 1984, (19): 621–631. DOI: https://doi.org/10.1016/0025-5408(84)90130-2.

[[52]] Kim J, Oh T, Lee M, et al.. Effects of Al₂O₃ addition on the sinterability and ionic conductivity of NASICON [J]. J Mater Sci, 1993, 28: 1573-1577.

[[53]] Shao Y, Zhong G, Lu Y, et al.. A novel NASICON-based glass-ceramic composite electrolyte with enhanced Naion conductivity [J]. Energy Storage Mater, 2019, 23: 514-521.

[[54]] Song S-f, Duong H M, Korsunsky A M, et al.. A Na(+) superionic conductor for room-temperature sodium batteries [J]. Scientific Reports, 2016, 6: 32330.

[[55]] Wang W-j, Wang S-b, Rao L, et al.. Study of Na_1+x+yZr_2−yNd_ySixP_3−xO₁₂ fast ion conductors [J]. Solid State Ionics, 1988, 28: 424-426.

[[56]] Schäf O, Weibel A, Llewellyn P L, et al.. Preparation and electrical properties of dense ceramics with NASICON composition sintered at reduced temperatures, J. Electroceram, 2004, 13: 817-823.

[[57]] Wang Q, Yu C, Li L-p, et al.. Sc-doping in Na₃Zr₂Si₂PO₁₂ electrolytes enables preeminent performance of solid-state sodium batteries in a wide temperature range [J]. Energy Storage Materials, 2023, 54: 135-145.

[[58]] Park H, Kang M, Park Y C, et al.. Improving ionic conductivity of Nasicon (Na₃Zr₂Si₂PO12) at intermediate temperatures by modifying phase transition behavior [J]. Journal of Power Sources, 2018, 399: 329-336.

[[59]] Xie B-x, Jiang D-y, Wu J, et al.. Effect of substituting Ce for Zr on the electrical properties of NASICON materials [J]. Journal of Physics and Chemistry of Solids, 2016, 88: 104-108.

[[60]] Weng W, Liu G-z, Li Y-m, et al.. Tungsten and oxygen Co-doped stable tetragonal phase Na₃SbS₄ with ultrahigh ionic conductivity for all-solid-state sodium batteries [J]. Applied Materials Today, 2022, 27: 101448.

[[61]] Liu Y-j, Liu L-m, Peng J-s, et al.. A niobium-substituted sodium superionic conductor with conductivity higher than 5.5 mS cm⁻¹ prepared by solution-assisted solidstate reaction method [J]. Journal of Power Sources, 2022, 518: 230765.

[[62]] Jaschin P W, Tang C R, Wachsman E D. High-rate cycling in 3D dual-doped NASICON architectures toward room-temperature sodium-metal-anode solid-state batteries [J]. Energy & Environmental Science, 2024, 17(2): 727-737.

[[63]] Pal S K, Saha R, Kumar G V, et al.. Designing high ionic conducting NASICON-type Na₃Zr₂Si₂PO₁₂ solid-electrolytes for Na-ion batteries [J]. The Journal of Physical Chemistry C, 2020, 124(17): 9161-9169.

[[64]] SAMIEE M, RADHAKRISHNAN B, RICE Z, et al. Divalent-doped Na₃Zr₂Si₂PO₁₂ natrium superionic conductor: Improving the ionic conductivity via simultaneously optimizing the phase and chemistry of the primary and secondary phases [J]. J Power Sources, 2017, (347): 229–237. DOI: https://doi.org/10.1016/j.jpowsour.2017.02.042.

[[65]] Yang J, Liu G-z, Avdeev M, et al.. Ultrastable all-solid-state sodium rechargeable batteries [J]. ACS Energy Letters, 2020, 5(9): 2835-2841.

[[66]] Li D-l, Sun C, Wang C-z, et al.. Regulating Na/NASCION electrolyte interface chemistry for stable solidstate Na metal batteries at room temperature [J]. Energy Storage Materials, 2023, 54: 403-409.

[[67]] Lu Y, Alonso J A, Yi Q, et al.. A high-performance monolithic solid-state sodium battery with Ca²⁺ doped Na₃Zr₂Si₂PO₁₂ electrolyte [J]. Adv Energy Mater, 2019, 9: 1901205.

[[68]] Wang X-x, Chen J-j, Mao Z-y, et al.. Effective resistance to dendrite growth of NASICON solid electrolyte with lower electronic conductivity [J]. Chemical Engineering Journal, 2022, 427: 130899.

[[69]] Zhang Z-z, Zou Z-y, Kaup K, et al.. Correlated migration invokes higher Na+-ion conductivity in NaSICON-type solid electrolytes [J]. Advanced Energy Materials, 2019, 9(42): 1902373.

[[70]] Yadav P, Bhatnagar M C. Preparation, structure and conductivity of Sn modified NASICON material [J]. Journal of Electroceramics, 2013, 30(3): 145-151.

[[71]] Li Y, Lu Y, Zhao C, et al.. Recent advances of electrode materials for low-cost sodium-ion batteries towards practical application for grid energy storage [J]. Energy Storage Mater, 2017, 7: 130-151.

[[72]] Wang C, Sun C, Sun Z, et al.. Optimizing the Na metal/solid electrolyte interface through a grain boundary design [J]. J Mater Chem A, 2022, 10: 5280-5286.

[[73]] Takada K, Ohno T, Ohta N, et al.. Positive and negative aspects of interfaces in solid-state batteries [J]. ACS Energy Lett, 2017, 3: 98-103.

[[74]] Li J, Hu H, Wang J, et al.. Carbon Neutralization, 2022, 1: 96-116.

[[75]] Chang H J, Lu X-c, Bonnett J F, et al.. Decorating β″-alumina solid-state electrolytes with micron Pb spherical particles for improving Na wettability at lower temperatures [J]. Journal of Materials Chemistry A, 2018, 6(40): 19703-19711.

[[76]] Gross M M, Percival S J, Small L J, et al.. Low-temperature molten sodium batteries [J]. ACS Applied Energy Materials, 2020, 3(11): 11456-11462.

[[77]] Liu T-h, Xiang P, Li Y-m, et al.. In situ forming Na — Sn alloy/Na₂S interface layer for ultrastable solid state sodium batteries [J]. Advanced Functional Materials, 2024, 34(32): 2316528.

[[78]] CAI S, TIAN H, LIU J, et al. Na₃Hf₂Si₂PO₁₂ electrolyte surfaces by metal coating for high-rate and long cycle life solid-state sodium ion batteries [J]. Journal of Materials Chemistry A, 2022, 10(3):. DOI: https://doi.org/10.1039/D1TA09693A.

[[79]] Hill R C, Peretti A S, Maraschky A M, et al.. Can a coating mitigate molten Na dendrite growth in NaSICON under high current density?. ACS Applied Energy Materials, 2024, 7(2): 810-819.

[[80]] Salgueiro T A, Veloso R C, Ventura J, et al.. Ionic conductivity analysis of NASICON solid electrolyte coated with polyvinyl-based polymers [J]. Batteries, 2024, 10(5): 157.

[[81]] Miao X-g, Wang H-y, Sun R, et al.. Isotropous sulfurized polyacrylonitrile interlayer with homogeneous Na⁺ flux dynamics for solid-state Na metal batteries [J]. Advanced Energy Materials, 2021, 11(13): 2003469.

[[82]] Yu X, Manthiram A. Sodium-sulfur batteries with a polymer-coated NASICON-type sodium-ion solid electrolyte [J]. Matter, 2019, 1: 439-451.

[[83]] Krauskopf T, Richter F H, Zeier W G, et al.. Physicochemical concepts of the lithium metal anode in solid-state batteries [J]. Chemical Reviews, 2020, 120(15): 7745-7794.

[[84]] Wang H-c, Gao H-w, Chen X-x, et al.. Linking the defects to the formation and growth of Li dendrite in all-solid-state batteries [J]. Advanced Energy Materials, 2021, 11(42): 2102148.

[[85]] Hofstetter K, Samson A J, Narayanan S, et al.. Present understanding of the stability of Li-stuffed garnets with moisture, carbon dioxide, and metallic lithium [J]. Journal of Power Sources, 2018, 390: 297-312.

[[86]] Ma Q-l, Ortmann T, Yang A-k, et al.. Enhancing the dendrite tolerance of NaSICON electrolytes by suppressing edge growth of Na electrode along ceramic surface [J]. Advanced Energy Materials, 2022, 12(40): 2201680.

[[87]] Yang J, Gao Z, Ferber T, et al.. Guided-formation of a favorable interface for stabilizing Na metal solid-state batteries[J]. J Mater Chem A, 2020, 8: 7828-7835.

[[88]] Miao X, Di H, Ge X, et al.. YinAlF3-modified anode-electrolyte interface for effective Na dendrites restriction in NASICON-based solid-state electrolyte [J]. Energy Storage Mater., 2020, 30: 170-178.

[[89]] Yang J, Xu H, Wu J, et al.. Improving Na/Na₃Zr₂Si₂PO₁₂ interface via SnO_x/Sn film for high-performance solid-state sodium metal batteries [J]. Small Methods, 2021, 5: 2100339.

[[90]] Wang X, Chen J, Mao Z, et al.. In situ construction of a stable interface induced by the SnS₂ ultra-thin layer for dendrite restriction in a solid-state sodium metal battery [J]. J Mater Chem A, 2021, 9: 16039-16045.

[[91]] Tian H, Liu S, Deng L, et al.. New-type Hf-based NASICON electrolyte for solid-state Na-ion batteries with superior long-cycling stability and rate capability [J]. Energy Storage Mater, 2021, 39: 232-238.

[[92]] Matios E, Wang H, Wang C-l, et al.. Graphene regulated ceramic electrolyte for solid-state sodium metal battery with superior electrochemical stability [J]. ACS Applied Materials & Interfaces, 2019, 11(5): 5064-5072.

[[93]] Kehne P, Guhl C, Ma Q, et al.. Sc-substituted NASICON solid electrolyte for an all-solid-state Na_xCoO₂/Nasicon/Na sodium model battery with stable electrochemical performance [J]. Journal of Power Sources, 2019, 409: 86-93.

[[94]] Guhl C, Kehne P, Ma Q-l, et al.. Interfaces in solidstate sodium-ion batteries: NaCoO₂ thin films on solid electrolyte substrates [J]. Electrochimica Acta, 2018, 268: 226-233.

[[95]] Kee Y, Suzuki Y, Ishigaki N, et al.. An appropriate reference and counter electrode in an all-solid-state battery using NASICON-structured solid electrolyte [J]. Electrochemistry Communications, 2021, 130: 107108.

[[96]] Dongrong Y, Da Zhang K R, Fupeng L, et al.. All solid-state sodium batteries and its interface modification [J]. Progress in Chemistry, 2023, 35(8): 1177-1190

[[97]] Luo W, Lin C-f, Zhao O, et al.. Ultrathin surface coating enables the stable sodium metal anode [J]. Advanced Energy Materials, 2017, 7(2): 1601526.

[[98]] Yang A-k, Yao K, Schaller M, et al.. Enhanced room-temperature Na⁺ ionic conductivity in Na_4.92Y_0.92Zr_0.08Si₄O₁₂ [J]. eScience, 2023, 3(6): 100175.

[[99]] Zhang Z Z. Preparation and modification of NASICON solid electrolyte Na₃Zr₂Si₂PO₁₂ [D], 2013 Hangzhou Zhejiang University of Science and Technology (in Chinese)

[[100]] Wang X-Xin. Preparation and interface optimization of solid electrolyte Na₃Zr₂Si₂PO₁₂ [D], 2022 Tianjin Tianjin University of Technology (in Chinese)

[[101]] Jiang P-f, Du G-y, Shi Y-s, et al.. Ultrafast sintering of Na₃Zr₂Si₂PO₁₂ solid electrolyte for long lifespan solid-state sodium ion batteries [J]. Chemical Engineering Journal, 2023, 451: 138771.

[[102]] Noi K, Suzuki K, Tanibata N, et al.. Liquid-phase sintering of highly Na⁺ ion conducting Na₃Zr₂Si₂PO₁₂ ceramics using Na₃BO₃ additive [J]. Journal of the American Ceramic Society, 2018, 101(3): 1255-1265.

[[103]] Kitta M, Sakaeda K, Shinozaki K. Preparation of water-impermeable NASICON solid electrolyte separators for aqueous/nonaqueous hybrid sodium-ion cells using alumina as a sintering aid [J]. Journal of Alloys and Compounds, 2023, 969: 172494.

[[104]] Noi K, Nagata Y, Hakari T, et al.. Oxide-based composite electrolytes using Na₃Zr₂Si₂PO₁₂/Na₃PS₄ interfacial ion transfer [J]. ACS Applied Materials & Interfaces, 2018, 10(23): 19605-19614.

[[105]] De la Torre-Gamarra C, Appetecchi G B, Ulissi U, et al.. Na₃Si₂Y_0.16Zr_1.84PO₁₂-ionic liquid hybrid electrolytes: An approach for realizing solid-state sodium-ion batteries? [J]. Journal of Power Sources, 2018, 383: 157-163.

[[106]] Liu L-l, Qi X-g, Ma Q, et al.. Toothpaste-like electrode: A novel approach to optimize the interface for solid-state sodium-ion batteries with ultralong cycle life [J]. ACS Applied Materials & Interfaces, 2016, 8(48): 32631-32636.

[[107]] Niu W, Chen L, Liu Y-c, et al.. All-solidstate sodium batteries enabled by flexible composite electrolytes and plastic-crystal interphase [J]. Chemical Engineering Journal, 2020, 384: 123233.

[[108]] Zhang Z-z, Zhang Q-h, Shi J-n, et al.. A self-forming composite electrolyte for solid-state sodium battery with ultralong cycle life [J]. Advanced Energy Materials, 2017, 7(4): 1601196.

[[109]] Hou M-jie. Basic research on the chemical stability of NASICON solid electrolyte and its application in sodium metal batteries [D], 2023 Kunming, China University of Science and Technology (in Chinese)