Fabrication of all-solid-state lithium battery with lithium metal anode using Al2O3-added Li7La3Zr2O12 solid electrolyte

Kotobuki, Masashi; Kanamura, Kiyoshi; Sato, Yuka; Yoshida, Toshihiro

doi:10.1016/j.jpowsour.2011.04.047

Cited by 328 publications

(240 citation statements)

References 26 publications

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“…3 However, in this study the charge transfer reactions at the electrode/ Li 2 S-P 2 S 5 solid electrolyte interface show much lower E a than that at the electrode/liquid electrolyte interface irrespective of composition. Additionally, i 0 for the Li 2 S(75)-P 2 S 5 (25) electrolyte was ten times higher than that in the liquid electrolyte at 25°C.…”

Section: Resultscontrasting

confidence: 59%

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

et al. 2012

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Charge transfer kinetics at the Li metal electrode/electrolyte interface for three inorganic solid electrolytes and an organic liquid electrolyte were elucidated with two parameters, exchange current density (i 0 ) for Li/Li + couple reactions and ionic conductivity in electrolyte. The former was evaluated by potential step method with a microelectrode, while the latter was done by electrochemical impedance spectroscopy. Both i 0 and ionic conductivity showed Arrhenius type dependence, and activation energies (E a ) for the charge transfer reactions and ionic conduction were evaluated. In the case of the organic liquid electrolyte, E a for the Li/Li + couple reactions was higher than that for ionic conduction because of the solvation/desolvation of Li + ion. However, for the Li 2 S-P 2 S 5 solid solid electrolytes, the E a for the Li/Li + couple reactions was quite close to that for ionic conduction due to the lack of the solvation/desolvation.

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Section: Resultscontrasting

confidence: 59%

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

et al. 2012

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“…Reports indicated that the unintentional incorporation of Al 3+ from alumina crucibles during the high-temperature solid state synthesis helps to stabilize the cubic phase against the tetragonal one. [12][13][14][15] The inclusion of Al 2 O 3 from alumina crucible during the preparation of lithium garnets at high sintering temperature around 1225 • C is inevitable. However it is not known completely whether the included Al 3+ occupies the Li + sites or an interstitial site.…”

Section: Introductionmentioning

confidence: 99%

Li+ transport properties of W substituted Li7La3Zr2O12 cubic lithium garnets

Dhivya

Janani²,

Palanivel³

et al. 2013

AIP Advances

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Lithium garnet Li7La3Zr2O12 (LLZ) sintered at 1230 °C has received considerable importance in recent times as result of its high total (bulk + grain boundary) ionic conductivity of 5 × 10−4 S cm−1 at room temperature. In this work we report Li+ transport process of Li7−2xLa3Zr2−xWxO12 (x = 0.3, 0.5) cubic lithium garnets. Among the investigated compounds, Li6.4La3Zr1.7W0.3O12 sintered relatively at lower temperature 1100 °C exhibits highest room temperature (30 °C) total (bulk + grain boundary) ionic conductivity of 7.89 × 10−4 S cm−1. The temperature dependencies of the bulk conductivity and relaxation frequency in the bulk are governed by the same activation energy. Scaling the conductivity spectra for both Li6.4La3Zr1.7W0.3O12 and Li6La3Zr1.5W0.5O12 sample at different temperatures merges on a single curve, which implies that the relaxation dynamics of charge carriers is independent of temperature. The shape of the imaginary part of the modulus spectra suggests that the relaxation processes are non-Debye in nature. The present studies supports the prediction of optimum Li+ concentration required for the highest room temperature Li+ conductivity in LixLa3M2O12 is around x = 6.4 ± 0.1

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“…75,181,182 At room temperature, nearly negligible interfacial impedances and 1 cm 2 have been shown for LPS|Li and LLZO|Li using best practices. 5,183 Oxide systems have been shown in true solid state architecture by either growing a thin cathode atop LLZO, 184,185 or using a low melting point conducting agent such as Li 3 BO 3 in the cathode. 186 A bulk co-sintering approach to create a bonded cathode-SSE interface introduces significant material compatibility issues during high temperature processing.…”

mentioning

confidence: 99%

Review—Practical Challenges Hindering the Development of Solid State Li Ion Batteries

Kerman

Luntz

Viswanathan

et al. 2017

J. Electrochem. Soc.

601

471

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Solid state electrolyte systems boasting Li + conductivity of >10 mS cm −1 at room temperature have opened the potential for developing a solid state battery with power and energy densities that are competitive with conventional liquid electrolyte systems. The primary focus of this review is twofold. First, differences in Li penetration resistance in solid state systems are discussed, and kinetic limitations of the solid state interface are highlighted. Second, technological challenges associated with processing such systems in relevant form factors are elucidated, and architectures needed for cell level devices in the context of product development are reviewed. Specific research vectors that provide high value to advancing solid state batteries are outlined and discussed. Solid state battery systems are of great interest because of potential benefits in gravimetric and volumetric energy density, operable temperature range, and safety in comparison to traditional liquid electrolyte based systems. However, unresolved fundamental issues remain in the quest to fully understand the behavior of all-solid batteries, especially in the area of electrochemical interfaces.1 There are also a number of significant engineering challenges that require methodical effort to enable a tangible product. Some transitions from academic laboratories to entrepreneurial efforts attempting to overcome these challenges remain unsuccessful in efforts to bring a product to the market.2,3 Vital parameters that require robust understanding from a product development standpoint are material cost, cell lifetime and shelf life, cell energy density on a volumetric and gravimetric basis, operable capabilities for given temperature conditions, and safety. The advantage of energy density remains to be realized in solid state electrolytes (SSEs) since most studies to date utilize thick SSEs or cathodes with low active loading compared to liquid counterparts. 4,5 Furthermore, the desire to use SSEs in conjunction with Li metal anodes requires understanding and managing the morphology of Li metal plating, which can impact volumetric energy density. Operation at both higher and lower temperature compared to conventional technologies is a significant potential advantage of SSE systems. However, reports of solid state cells achieving parity with traditional systems at room temperature or any other temperature do not currently exist. The safety, specifically decreased flammability, of SSE systems is another potential advantage but requires ongoing validation and study.6 Unlike current liquid electrolyte systems, 7 the manufacturability and material component costs of SSEs have not been well characterized, and thus the value of these features will need to be weighed accordingly with any added cost. Operating lifetime of SSEs capturing intrinsic materials parameters such as voltage stability, 8 as well as catastrophic failure modes such as shorting, 9 have been briefly investigated, but in the absence of high energy density electrode formulations and appli...

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Fabrication of all-solid-state lithium battery with lithium metal anode using Al2O3-added Li7La3Zr2O12 solid electrolyte

Cited by 328 publications

References 26 publications

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

Li+ transport properties of W substituted Li7La3Zr2O12 cubic lithium garnets

Review—Practical Challenges Hindering the Development of Solid State Li Ion Batteries

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