Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Inada, Ryoji; Ishida, Keiichi; Tojo, Masaru; Okada, Takayuki; Tojo, Tomohiro; Sakurai, Yasuhisa

doi:10.1016/j.ceramint.2015.05.062

Cited by 37 publications

(35 citation statements)

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Section: Tno Film Electrode Fabrication On Llbzt and Its Characterizamentioning

confidence: 99%

“…It has been reported that both the size and morphology of raw powder are important factors for the structure and property of the film formed by AD (Akedo, 2006;Popovici et al, 2011;Inada et al, 2014bInada et al, , 2015. In order to prepare TNO powder with suitable particle size for dense film fabrication by AD, TNO powder was pulverized using planetary ball milling (Nagao System, Planet M2-3F) with ethanol and zirconia balls.…”

Section: Tno Film Electrode Fabrication On Llbzt and Its Characterizamentioning

confidence: 99%

“…Consequently, asdeposited film has similar properties to the raw powder material, such as its crystal structure, composition, and physical property. By addressing these features, several papers have been reported for the feasibility of the AD method as a battery electrode or SE fabrication process (Popovici et al, 2011;Kim et al, 2013;Inada et al, 2014bInada et al, , 2015Iwasaki et al, 2014;Ahn et al, 2015;Kato et al, 2016).TNO is known to be an insertion-type electrode material operating at a potential around 1.6-1.7 V vs. Li + /Li and shows reversible charge and discharge capacities of around 250 mAh g −1 and reasonably good cycle stability (Han et al, 2011;Guo et al, 2014;Ashisha et al, 2015), so that we considered TNO as suitable for the feasibility study for an all-solid-state battery application. TNO powders used in this work were prepared by a conventional solid-state reaction method.…”

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confidence: 99%

“…Stoichiometric amount of anatase TiO2 (Kojundo Chemical Laboratory Co., Ltd., 99%) and Nb2O5 (Kojundo Chemical Laboratory Co., Ltd., 99.9%) were ground and mixed in ethanol by planetary ball milling (Nagao System, Planet M2-3F) with zirconia balls for 1 h. The mixture was annealed at 1100°C for 24 h in air. From the XRD measurements, we confirmed that TNO was successfully obtained without forming any impurity phases.It has been reported that both the size and morphology of raw powder are important factors for the structure and property of the film formed by AD (Akedo, 2006;Popovici et al, 2011;Inada et al, 2014bInada et al, , 2015. In order to prepare TNO powder with suitable particle size for dense film fabrication by AD, TNO powder was pulverized using planetary ball milling (Nagao System, Planet M2-3F) with ethanol and zirconia balls.…”

mentioning

confidence: 99%

“…In order to prepare TNO powder with suitable particle size for dense film fabrication by AD, TNO powder was pulverized using planetary ball milling (Nagao System, Planet M2-3F) with ethanol and zirconia balls. The rotation speed of planetary ball milling was fixed to 300 rpm but milling time was changed in order to control particle size.The AD apparatus consists of a carrier gas supply system, an aerosol chamber, a deposition chamber equipped with a motored X-Y-Z stage, and a nozzle with a thin rectangular shaped-orifice with a size of 10 mm × 0.5 mm (Inada et al, 2014b(Inada et al, , 2015. Deposition starts with evacuating the deposition chamber.…”

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confidence: 99%

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Development of Lithium-Stuffed Garnet-Type Oxide Solid Electrolytes with High Ionic Conductivity for Application to All-Solid-State Batteries

et al. 2016

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All-solid-state lithium-ion batteries are expected to be one of the next generations of energy storage devices because of their high energy density, high safety, and excellent cycle stability. Although oxide-based solid electrolyte (SE) materials have rather lower conductivity and poor deformability than sulfide-based ones, they have other advantages, such as their chemical stability and ease of handling. Among the various oxide-based SEs, lithium-stuffed garnet-type oxide, with the formula of Li7La3Zr2O12 (LLZ), has been widely studied because of its high conductivity above 10 −4 S cm −1 at room temperature, excellent thermal performance, and stability against Li metal anode. Here, we present our recent progress for the development of garnet-type SEs with high conductivity by simultaneous substitution of Ta 5+ into the Zr 4+ site and Ba 2+ into the La 3+ site in LLZ. Li + concentration was fixed to 6.5 per chemical formulae, so that the formula of our Li garnet-type oxide is expressed as Li6.5La3−xBaxZr1.5−xTa0.5+xO12 (LLBZT) and Ba contents x are changed from 0 to 0.3. As a result, all LLBZT samples have a cubic garnet structure without containing any secondary phases. The lattice parameters of LLBZT decrease with increasing Ba 2+ contents x ≤ 0.10 while increase with x from 0.10 to 0.30, possibly due to the simultaneous change of Ba 2+ and Ta 5+ substitution levels. The relative densities of LLBZT are in a range between 89 and 93% and are not influenced in any significant way by the compositions. From the AC impedance spectroscopy measurements, the total (bulk + grain) conductivity at 27°C of LLBZT shows its maximum value of 8.34 × 10 −4 S cm −1 at x = 0.10, which is slightly higher than the conductivity (= 7.94 × 10 −4 S cm ) of LLZT without substituting Ba (x = 0). The activation energy of the conductivity tends to become lower by Ba substation, while excess Ba substitution degrades the conductivity in LLBZT. LLBZT has a wide electrochemical potential window of 0-6 V vs. Li + /Li, and Li + insertion and extraction reactions of TiNb2O7 film electrode formed on LLBZT by aerosol deposition are demonstrated at 60°C. The results indicate that LLBZT can potentially be used as a SE in all-solid-state batteries.Keywords: garnet-type oxide, solid electrolyte, ionic conductivity, all-solid-state battery, aerosol deposition inTrODUcTiOn Lithium-ion batteries (LIBs) consist of a graphite negative electrode, organic liquid electrolyte, and lithium transition-metal oxide. They were first commercialized in 1991, and since then such batteries have been widely distributed globally as a power source for mobile electronic devices, such as cell phones and laptop computers. Nowadays, large-scale LIBs have been developed for application to automotive propulsion and stationary loadleveling for intermittent power generation from solar or wind energy (Tarascon and Armand, 2001;Armand and Tarascon, 2008;Scrosati and Garche, 2010;Goodenough and Kim, 2011). However, increasing battery size creates more serious safety issues for LIBs;...

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Section: Tno Film Electrode Fabrication On Llbzt and Its Characterizamentioning

confidence: 99%

Section: Tno Film Electrode Fabrication On Llbzt and Its Characterizamentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Development of Lithium-Stuffed Garnet-Type Oxide Solid Electrolytes with High Ionic Conductivity for Application to All-Solid-State Batteries

et al. 2016

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Progress and Perspectives of Lithium Aluminum Germanium Phosphate‐Based Solid Electrolytes for Lithium Batteries

Zhang

Liu

Xie

et al. 2023

Adv Funct Materials

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Solid‐state lithium batteries are considered promising energy storage devices due to their superior safety and higher energy density than conventional liquid electrolyte‐based batteries. Lithium aluminum germanium phosphate (LAGP), with excellent stability in air and good ionic conductivity, has gained tremendous attention over the past decades. However, the poor interface compatibility with Li anode, slow Li‐ion conduction in thick pellets, and high‐temperature sintering procedure limit the further development of LAGP solid electrolytes in practical applications. This review comprehensively summarizes the crystal structure, Li‐ion conducting mechanism, and various synthesis methods, especially the latest thin‐film preparation approach. The underlying reason for Li/LAGP interfacial instability is identified, followed by several advanced interface engineering strategies, for example, introducing a functional interlayer. The integration design of LAGP‐based solid electrolytes and cathode is also highlighted to enable high‐loading cathodes. Additionally, recent progress of lithium‐oxygen and lithium‐sulfur batteries with LAGP‐based solid electrolytes is discussed. Moreover, the different Li‐ion migration pathways, preparation procedures, and electrochemical performance of polymer‐LAGP composite solid electrolytes in Li‐ion batteries are introduced. Lastly, the remaining challenges and opportunities are proposed to encourage more efforts in this field. This review aims to provide fundamental insights and promising directions toward practical LAGP‐based solid‐state batteries.

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Lithium All‐Solid‐State Batteries Fabricated at Room Temperature by the Powder Aerosol Deposition Method with Garnet‐Type Electrolyte and Graded Composite Cathode

Hennerici,

Ficht,

Schamel

et al. 2024

Adv Materials Technologies

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Lithium‐based all‐solid‐state batteries (ASSBs) are attracting worldwide attention as the next step in the evolution of Li‐ion batteries (LIBs). They have the potential to address safety concerns and limited energy densities, which are key challenges for LIBs. The current focus is on enhancing the electrochemical properties of ASSBs. However, a suitable economic method for fabricating them remains to be established, especially when ceramic materials are used as solid electrolytes. The powder aerosol deposition method (PAD or ADM) is a ceramic processing method that uses raw ceramic powders to fabricate dense, several micrometer thick ceramic films. The entire process takes place at room temperature and in the absence of additional binders. Therefore, PAD is used in this study to fabricate ASSBs with LiNi0.83Mn0.11Co0.06O2 (NMC) as the cathode active material and Al0.2Li6.025La3Zr1.625Ta0.375O12 (LLZO) as the solid electrolyte. The cathode is fabricated as a composite with a gradient in the electrolyte concentration. The successful fabrication is confirmed through scanning electron microscopy and energy‐dispersive X‐ray spectroscopy analysis. Electrochemical characterization shows that a PAD‐ASSB can be cycled. Furthermore, it can be shown that 145 µm thick NMC films can be fabricated by PAD. The electrochemical results are compared with the theoretical potential of PAD‐ASSBs, and methods to further improve the achieved state are discussed.

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Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Cited by 37 publications

References 50 publications

Development of Lithium-Stuffed Garnet-Type Oxide Solid Electrolytes with High Ionic Conductivity for Application to All-Solid-State Batteries

Development of Lithium-Stuffed Garnet-Type Oxide Solid Electrolytes with High Ionic Conductivity for Application to All-Solid-State Batteries

Progress and Perspectives of Lithium Aluminum Germanium Phosphate‐Based Solid Electrolytes for Lithium Batteries

Lithium All‐Solid‐State Batteries Fabricated at Room Temperature by the Powder Aerosol Deposition Method with Garnet‐Type Electrolyte and Graded Composite Cathode

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