Structural and electrical properties of ceramic Li-ion conductors based on Li1.3Al0.3Ti1.7(PO4)3-LiF

Kwatek, K.; Ślubowska, Wioleta; Trébosc, Julien; Lafon, Olivier; Nowiński, J.L.

doi:10.1016/j.jeurceramsoc.2019.08.032

Cited by 53 publications

(19 citation statements)

References 43 publications

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“…However after sintering of composite, additional reflections appeared at 17.0°, 18.5°, 20.4°, 22.2°, 27.0°, 27.3°, 27.7°, 31.0° and 39.3°. They were identified as LiTiPO5 and Li4P2O7 phases [8,11,24,[27][28][29]33]. As evidenced by HTXRD studies, the most pronounced changes in phase composition could be observed above 700°C.…”

Section: X-ray Diffractionmentioning

confidence: 91%

Impact of Li2.9B0.9S0.1O3.1 glass additive on the structure and electrical properties of the LATP-based ceramics

Kwatek

Ślubowska

Trébosc

et al. 2020

Journal of Alloys and Compounds

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The existing solid electrolytes for lithium ion batteries suffer from low total ionic conductivity, which restricts its usefulness for the lithium-ion battery technology. Among them, the NASICON-based materials, such as Li1.3Al0.3Ti1.7(PO4)3 (LATP) exhibit low total ionic conductivity due to highly resistant grain boundary phase. One of the possible approaches to efficiently enhance their total ionic conductivity is the formation of a composite material. Herein, the Li2.9B0.9S0.1O3.1 glass, called LBSO hereafter, was chosen as an additive material to improve the ionic properties of the ceramic Li1.3Al0.3Ti1.7(PO4)3 base material. The properties of this Li1.3Al0.3Ti1.7(PO4)3-xLi2.9B0.9S0.1O3.1 (0  x  0.3) system have been studied by means of high temperature X-ray diffractometry (HTXRD), 7 Li, 11 B, 27 Al and 31 P magic angle spinning nuclear magnetic resonance spectroscopy (MAS NMR), thermogravimetry (TG), scanning electron microscopy (SEM), impedance spectroscopy (IS) and density methods. We show here that the introduction of the foreign LBSO phase enhances their electric properties. This study reveals several interesting correlations between the apparent density, the microstructure, the composition, the sintering temperature and the ionic conductivity. Moreover, the electrical properties of the composites will be discussed in the terms of the bricklayer model (BLM). The highest value of σtot = 1.5 × 10 −4 S•cm −1 has been obtained for LATP-0.1LBSO material sintered at 800°C.

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Section: X-ray Diffractionmentioning

confidence: 91%

Impact of Li2.9B0.9S0.1O3.1 glass additive on the structure and electrical properties of the LATP-based ceramics

Kwatek

Ślubowska

Trébosc

et al. 2020

Journal of Alloys and Compounds

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“…Recently, Case et al [384] performed computational studies of LATP and Binninger et al [276] analyzed the electrochemical stability window of the LATP electrolyte using computational methods. Furthermore, Siyal et al [385] analyzed a gel polymer electrolyte with 15 wt.% LATP composite, and few other researchers studied bare and LATP composite electrodes [379,[386][387][388]. Yen et al [389] characterized LATP powders prepared by hydrothermal synthesis followed by calcination (900-1100 • C), cold pressing (90 MPa), and post sintering, which exhibit ionic conductivity of grain and grain boundary of 6.57 × 10 −4 and 4.59 × 10 −4 S cm −1 , respectively.…”

Section: Li-analogues Of Nasiconmentioning

confidence: 99%

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

et al. 2020

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Energy storage materials are finding increasing applications in our daily lives, for devices such as mobile phones and electric vehicles. Current commercial batteries use flammable liquid electrolytes, which are unsafe, toxic, and environmentally unfriendly with low chemical stability. Recently, solid electrolytes have been extensively studied as alternative electrolytes to address these shortcomings. Herein, we report the early history, synthesis and characterization, mechanical properties, and Li+ ion transport mechanisms of inorganic sulfide and oxide electrolytes. Furthermore, we highlight the importance of the fabrication technology and experimental conditions, such as the effects of pressure and operating parameters, on the electrochemical performance of all-solid-state Li batteries. In particular, we emphasize promising electrolyte systems based on sulfides and argyrodites, such as LiPS5Cl and β-Li3PS4, oxide electrolytes, bare and doped Li7La3Zr2O12 garnet, NASICON-type structures, and perovskite electrolyte materials. Moreover, we discuss the present and future challenges that all-solid-state batteries face for large-scale industrial applications.

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“…Among the main advantages of glass-ceramic materials are their dense, non-porous microstructure, good mechanical, electrical, thermal, and magnetic properties, or optical transparency. Such materials have already found many practical applications, e.g., as fiber optic devices, heat-resistant materials (Li 2 O-Al 2 O 3 -SiO 2 ), hard disk substrates (Li 2 O-SiO 2 ), dental materials (K 2 O-Al 2 O 3 -SiO 2 ), and many others [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Towards Higher Electric Conductivity and Wider Phase Stability Range via Nanostructured Glass-Ceramics Processing

2021

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This review article presents recent studies on nanostructured glass-ceramic materials with substantially improved electrical (ionic or electronic) conductivity or with an extended temperature stability range of highly conducting high-temperature crystalline phases. Such materials were synthesized by the thermal nanocrystallization of selected electrically conducting oxide glasses. Various nanostructured systems have been described, including glass-ceramics based on ion conductive glasses (silver iodate and bismuth oxide ones) and electronic conductive glasses (vanadate-phosphate and olivine-like ones). Most systems under consideration have been studied with the practical aim of using them as electrode or solid electrolyte materials for rechargeable Li-ion, Na-ion, all-solid batteries, or solid oxide fuel cells. It has been shown that the conductivity enhancement of glass-ceramics is closely correlated with their dual microstructure, consisting of nanocrystallites (5–100 nm) confined in the glassy matrix. The disordered interfacial regions in those materials form “easy conduction” paths. It has also been shown that the glassy matrices may be a suitable environment for phases, which in bulk form are stable at high temperatures, and may exist when confined in nanograins embedded in the glassy matrix even at room temperature. Many complementary experimental techniques probing the electrical conductivity, long- and short-range structure, microstructure at the nanometer scale, or thermal transitions have been used to characterize the glass-ceramic systems under consideration. Their results have helped to explain the correlations between the microstructure and the properties of these systems.

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Structural and electrical properties of ceramic Li-ion conductors based on Li1.3Al0.3Ti1.7(PO4)3-LiF

Cited by 53 publications

References 43 publications

Impact of Li2.9B0.9S0.1O3.1 glass additive on the structure and electrical properties of the LATP-based ceramics

Impact of Li2.9B0.9S0.1O3.1 glass additive on the structure and electrical properties of the LATP-based ceramics

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Towards Higher Electric Conductivity and Wider Phase Stability Range via Nanostructured Glass-Ceramics Processing

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