Recent progress in sulfide-based solid electrolytes for Li-ion batteries

Liu, D.; Zhu, Wen; Feng, Zimin; Guerfi, Abdelbast; Vijh, Ashok K.; Zaghib, Karim

doi:10.1016/j.mseb.2016.03.005

Cited by 84 publications

(53 citation statements)

References 60 publications

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“…20 Information on LPS and other sulfide based electrolyte systems can also be found in focused subject reviews. 21 An overview of fundamentals in ionic conduction properties in many SSEs has been recently outlined.18 Although a large bulk of the literature in the field of SSEs is focused on improving conductivity of varying material compositions, it is noted that high conductivity is a necessary but insufficient property. While processing parameters can have significant effects on properties such as conductivity, this discussion is not focused on optimization of a single parameter, but instead takes a holistic approach to developments necessary for a robust product.…”

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confidence: 99%

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confidence: 99%

“…The macroscopically deformable nature of sulfide systems provides a means of improving interfacial contact. 21,79,89 Pressure and temperature can be used to create low impedance interfaces with electrode materials. Conversely, the brittle nature of oxide systems negates the ability to use mechanical bonding to make Ohmic contact with low interfacial impedance without surface modification.…”

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confidence: 99%

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

Kerman

Luntz

Viswanathan

et al. 2017

J. Electrochem. Soc.

605

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

Kerman

Luntz

Viswanathan

et al. 2017

J. Electrochem. Soc.

605

471

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“…Two spectra have similar features. The broad Raman signal is principally composed of two peaks: the peak around 350 cm −1 , which is attributed to the vibration of [GeS 4/2 ] tetrahedrons, and the peak around 407 cm −1 , which is attributed to the vibration of [GeS 2/2 S 2 2− ] tetrahedrons . This is a typical Raman signal for GeS 2 ‐based glasses.…”

Section: Resultsmentioning

confidence: 92%

Pressure dependence of interfacial resistance in pellets made from GeS₂‐Ga₂S₃‐Li₂S‐LiI glass powder

et al. 2018

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The interfacial resistance and capacitance in pellets made from GeS2‐Ga2S3‐Li2S‐LiI glass powder are studied under uniaxial compression. By varying the pressure, remarkable change in the geometric dimension of the interfacial resistance and capacitance is observed. Assuming that the interfacial resistance and capacitance arise from the contact region between the powder particles, a quantitative model is established that well describes the geometric dimension change in the interfacial resistance and capacitance. This work emphasizes that ameliorating the contact between the particles is one of the most important methods to reduce the interfacial resistance in the powder‐type ionic‐conduction devices made from highly‐conductive sulfide solid electrolyte powders.

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“…These electrolytes must transport lithium ions through the medium with high ionic conductivity; however, further development is needed to improve the mobility to reach levels comparable with liquid electrolytes . Currently, garnet LiLaZrO 2 (LLZO) and sulfide electrolyte materials are popular candidates . Properties including morphology, crystallinity, grain size, grain boundaries, and porosity play a significant role in dictating the performance of ionic systems .…”

Section: Introductionmentioning

confidence: 99%

Impedance Spectroscopy Screening of Various Nanocrystalline Metal Oxides: Effect of Lithiation on Electrical Properties

et al. 2017

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The electronic and crystalline properties of solid complex materials dictate performance in electrochemical applications, such as electrodes or solid electrolytes in solid‐state lithium ion power systems. Herein, we perform variable‐temperature two‐electrode impedance spectroscopy on a variety of nanocrystalline metal oxides to investigate their relative total conductivities and the kinetics of vacancy formation. Lithiated and unlithiated first‐row transition metal oxides (manganese, iron, cobalt, and nickel) with various crystal structures, surface areas, and morphologies were investigated. Characterization of these materials by XRD, SEM, and TEM was performed to investigate the physiochemical properties and changes imparted by chemical lithiation, specifically on the textural properties. Activation energies derived from Arrhenius plots were found to vary between 17 and 33 kJ mol−1 for the systems studied. Lithiated nickel oxide was observed to provide the lowest activation energy and highest conductivity of the studied systems. The relatively low electrical conductivity suggests conductive additives must be used to facilitate electron transfer in electrodes for these materials; however, the improved conductivity compared to nonporous “bulk” commercial oxide systems suggests these to be promising active materials for electrochemical applications.

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Recent progress in sulfide-based solid electrolytes for Li-ion batteries

Cited by 84 publications

References 60 publications

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

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

Pressure dependence of interfacial resistance in pellets made from GeS₂‐Ga₂S₃‐Li₂S‐LiI glass powder

Impedance Spectroscopy Screening of Various Nanocrystalline Metal Oxides: Effect of Lithiation on Electrical Properties

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Recent progress in sulfide-based solid electrolytes for Li-ion batteries

Cited by 84 publications

References 60 publications

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

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

Pressure dependence of interfacial resistance in pellets made from GeS2‐Ga2S3‐Li2S‐LiI glass powder

Impedance Spectroscopy Screening of Various Nanocrystalline Metal Oxides: Effect of Lithiation on Electrical Properties

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Pressure dependence of interfacial resistance in pellets made from GeS₂‐Ga₂S₃‐Li₂S‐LiI glass powder