Influence of preparation temperature on ionic conductivity of titanium-defective Li1+4xTi2−x(PO4)3 NASICON-type materials

Kahlaoui, Radhouene; Arbi, K.; Jiménez, Ricardo; Sobrados, Isabel; Sanz, J.; Ternane, Riadh

doi:10.1007/s10853-020-04463-3

Cited by 12 publications

(5 citation statements)

References 39 publications

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“…These studies were determinant to establish the influence of the composition in the conductivity of electrolytes. A summary of the most important results for lithium-containing NASICONs synthesized by this method is summarized in Table . − ,− ,,,,,,− The parameters E a and σ are presented, in which E a is the total activation energy and σ is the conductivity at room temperature (considered between 15 and 30 °C). The method for shaping and the sintering conditions are also described.…”

Section: Methods For Nasicon Preparation: Composition Synthesis and P...mentioning

confidence: 99%

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

2020

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Lithium ion-containing Na + Super Ionic Conductor (NASICON) electrolytes are important materials for new energystorage technologies. The NASICON abbreviation represents several compounds with similar structures applied as solid electrolytes, including those conductors of lithium ions. Different methods have been used to synthesize these materials, as well as innumerous other methods used to form the electrolyte in its final shape. The synthesis methods and processing techniques significantly affect the microstructure and conductivity of the electrolyte as a result. Therefore, this paper provides an overview of the main synthesis methods and processing techniques applied for lithium ion NASICON production. First, a general view of the NASICON structure and the variety of possible compositions will be discussed. Next, the influence of the synthesis methods (e.g., solid-state reaction, sol−gel, polymeric precursor, sol−gel/ electrospinning) and sintering techniques (e.g., conventional, microwave, and Spark Plasma Sintering) will be presented. A special topic will be devoted for glass-ceramics production and evaluation, based on their advantageous ionic conductivity and potentiality for practical use on a large-scale. Moreover, the current results for electrochemical cells simulating the application of these materials in batteries will be presented. Finally, a general point of view of the authors about the future for NASICON electrolytes will be provided, presenting oncoming trends for research.

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Section: Methods For Nasicon Preparation: Composition Synthesis and P...mentioning

confidence: 99%

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

2020

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“…Xie et al [441,442], Prabhu et al [443], and Cassel et al [444] studied bare and Ca-doped LiZr 2 P 3 O 12 and reported room-temperature conductivities in the range of 10 −4 -10 −6 S cm −1 . In addition, Abdel-Hameed et al [445] investigated the effect of F − and B 3+ ions and heat treatment on the enhancement of electrochemical and electrical properties of nanosized LiTi 2 (PO 4 ) 3 glass-ceramic for ASSB and Kahlaoui et al [446] examined the influence of preparation temperature on ionic conductivity of titanium-defective Li 1+4x Ti 2−x (PO 4 ) 3 NASICON-type oxide solid electrolytes.…”

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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“…However, the XRD results of LATP pellets sintered at a temperature above 900 °C exhibit peaks of LiTiPO 5 sary phases. [ 59 ] Compared to LATP, LATP–5LBO exhibited a pure LiTi 2 (PO 4 ) 3 phase without any impurities, even after sintering at temperatures ranging from 700 to 1000 °C (Figure 3d). The suppression of LiTiPO 5 sary phase formation was attributed to LBO glass containing boron.…”

Section: Resultsmentioning

confidence: 99%

“…The observation of TiP 2 O 7 as an intermediate phase in LATP-800/900/1000 and LATP-5LBO-800/900/1000 suggests its temporary formation during the reaction between TiO 2 and phosphate compounds. [59,60] This implies that the reaction may have been influenced by the short residence time of the spray pyrolysis process. Furthermore, the secondary phase peak of AlPO 4 , which is an ionic insulator, was also detected in LATP-1000 synthesized at a high temperature.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Sintering of Li_1.3Al_0.3Ti_1.7(PO₄)₃@Li₂O–2B₂O₃ Core–Shell Solid Electrolyte Powders Prepared via One‐Pot Spray Pyrolysis

Shin,

Kim,

Jung

et al. 2024

Adv Eng Mater

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Developing a rational design for oxide‐based solid electrolytes to promote ionic conductivity, decrease the sintering temperature, and improve stability with metallic Li is challenging. Herein, core–shell‐structured Li1.3Al0.3Ti1.7(PO4)3@Li2O–2B2O3 (LATP–LBO) microspheres are prepared using one‐pot spray pyrolysis. Phase separation between crystalline LATP and amorphous LBO leads to the formation of a core–shell‐structured LATP–LBO composite. On the surface of LATP–LBO composite, the LBO shell forms a liquid phase during low‐temperature sintering, thereby enhancing the densification. The LBO shell also decreases the grain boundary resistance by forming a thin layer between the LATP grains, thus increasing the total ionic conductivity. Because Li‐ion conductive LBO occupies the grain boundary, a total ionic conductivity of 1.519 × 10−4 S cm−1 is achieved at a low sintering temperature of 700 °C. Additionally, the LBO shell provides good electrochemical stability for LATP with metallic Li. The improved ionic conductivity and chemical stability can be attributed to the synergistic advantages of the spherical morphology, core–shell structure, and uniformity of LBO.

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Influence of preparation temperature on ionic conductivity of titanium-defective Li1+4xTi2−x(PO4)3 NASICON-type materials

Cited by 12 publications

References 39 publications

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

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

Synthesis and Sintering of Li_1.3Al_0.3Ti_1.7(PO₄)₃@Li₂O–2B₂O₃ Core–Shell Solid Electrolyte Powders Prepared via One‐Pot Spray Pyrolysis

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Influence of preparation temperature on ionic conductivity of titanium-defective Li1+4xTi2−x(PO4)3 NASICON-type materials

Cited by 12 publications

References 39 publications

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

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

Synthesis and Sintering of Li1.3Al0.3Ti1.7(PO4)3@Li2O–2B2O3 Core–Shell Solid Electrolyte Powders Prepared via One‐Pot Spray Pyrolysis

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Product

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Synthesis and Sintering of Li_1.3Al_0.3Ti_1.7(PO₄)₃@Li₂O–2B₂O₃ Core–Shell Solid Electrolyte Powders Prepared via One‐Pot Spray Pyrolysis