Preparation of the Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte with high ionic conductivity

Куншина, Г. Б.; Бочарова, И. В.; Иваненко, В. И.

doi:10.1134/s2075113317020137

Cited by 22 publications

(8 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth noting that several variations can occur in these methods and that detailing each one is beyond the scope of this paper. In summary, for all those methods, the liquid phase allows an enhanced chemical homogeneity of precursors, and the lower synthesis temperatures avoid particle coarsening. , These features can enhance chemical homogeneity and particle growing control …”

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

confidence: 99%

“…In summary, for all those methods, the liquid phase allows an enhanced chemical homogeneity of precursors, and the lower synthesis temper- atures avoid particle coarsening. 163,164 These features can enhance chemical homogeneity and particle growing control. 20 The main results of NASICONs obtained by wet-chemical m e t h o d s a r e s u m m a r i z e d i n T a b l e 2.…”

Section: Methods For Nasicon Preparationmentioning

confidence: 99%

See 1 more Smart Citation

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

2020

View full text Add to dashboard Cite

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.

show abstract

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

confidence: 99%

Section: Methods For Nasicon Preparationmentioning

confidence: 99%

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

2020

View full text Add to dashboard Cite

show abstract

“…Previous studies on the sol-gel synthesis of LAGP employed various precursor materials, both organic and inorganic, as Ge source. [47][48][49][50][51][52][53][54][55][56][57][58] Among them, germanium oxide has the advantage of being relatively inexpensive and stable at atmosphere conditions however, its low solubility in both water and organic solvents makes it unsuitable for electrospinning techniques. 54,55 Ge alkoxides are the most frequently used precursors for LAGP sol-gel syntheses, thanks to their good solubility in various organic solvents, which allows to easily obtain a homogeneous solution.…”

mentioning

confidence: 99%

Synthesis of Electrospun NASICON Li_1.5Al_0.5Ge_1.5(PO₄)₃ Solid Electrolyte Nanofibers by Control of Germanium Hydrolysis

Monaca

Girard

Savoie

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

We report the synthesis of ceramic Li1.5Al0.5Ge1.5(PO4)3 (LAGP) nanofibers by combining sol–gel and electrospinning techniques. A homogeneous and stable precursor solution based on chlorides was achieved by controlling Ge hydrolysis. Subsequent electrospinning and heat treatment resulted in highly porous nanostructured NASICON pellets. After a full chemical-physical characterization, various amounts of LAGP nanofibers were used as a filler to develop polyethylene oxide (PEO)-based composite electrolytes. The addition of 10% LAGP nanofibers has allowed doubling the ionic conductivity of the plain polymer electrolyte, by providing longer ion-conductive paths and reducing PEO crystallinity. These findings are promising towards developing solution-based synthesis approaches featuring Ge precursors. In addition, the achieved LAGP nanofibers proved to be a promising nanofiller candidate to develop composite electrolytes for next-generation solid-state batteries.

show abstract

“…LLZTO is not the only possible choice of ceramic electrolyte. Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) has also been considered owing to its high conductivity that can reach 1 × 10 −3 S cm −1 [157,158], despite the fact that a compound with germanium has no future on the industrial scale. Hereon, we refer to Li 1+x Al y Ge 2−y (PO 4 ) 3 ceramics by the generic term LAGP, irrespective of the values of x and y, which may slightly differ from one work to another.…”

Section: Solid Electrolytes For Lithium Batteriesmentioning

confidence: 99%

Building Better Batteries in the Solid State: A Review

et al. 2019

View full text Add to dashboard Cite

Most of the current commercialized lithium batteries employ liquid electrolytes, despite their vulnerability to battery fire hazards, because they avoid the formation of dendrites on the anode side, which is commonly encountered in solid-state batteries. In a review two years ago, we focused on the challenges and issues facing lithium metal for solid-state rechargeable batteries, pointed to the progress made in addressing this drawback, and concluded that a situation could be envisioned where solid-state batteries would again win over liquid batteries for different applications in the near future. However, an additional drawback of solid-state batteries is the lower ionic conductivity of the electrolyte. Therefore, extensive research efforts have been invested in the last few years to overcome this problem, the reward of which has been significant progress. It is the purpose of this review to report these recent works and the state of the art on solid electrolytes. In addition to solid electrolytes stricto sensu, there are other electrolytes that are mainly solids, but with some added liquid. In some cases, the amount of liquid added is only on the microliter scale; the addition of liquid is aimed at only improving the contact between a solid-state electrolyte and an electrode, for instance. In some other cases, the amount of liquid is larger, as in the case of gel polymers. It is also an acceptable solution if the amount of liquid is small enough to maintain the safety of the cell; such cases are also considered in this review. Different chemistries are examined, including not only Li-air, Li–O2, and Li–S, but also sodium-ion batteries, which are also subject to intensive research. The challenges toward commercialization are also considered.

show abstract

Preparation of the Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte with high ionic conductivity

Cited by 22 publications

References 20 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

Synthesis of Electrospun NASICON Li_1.5Al_0.5Ge_1.5(PO₄)₃ Solid Electrolyte Nanofibers by Control of Germanium Hydrolysis

Building Better Batteries in the Solid State: A Review

Contact Info

Product

Resources

About

Preparation of the Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte with high ionic conductivity

Cited by 22 publications

References 20 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

Synthesis of Electrospun NASICON Li1.5Al0.5Ge1.5(PO4)3 Solid Electrolyte Nanofibers by Control of Germanium Hydrolysis

Building Better Batteries in the Solid State: A Review

Contact Info

Product

Resources

About

Synthesis of Electrospun NASICON Li_1.5Al_0.5Ge_1.5(PO₄)₃ Solid Electrolyte Nanofibers by Control of Germanium Hydrolysis