Interface and grain boundary resistance of a lithium lanthanum titanate (Li3xLa2/3−xTiO3, LLTO) solid electrolyte

Uhlmann, Christian; Braun, Philipp; Illig, Jörg; Weber, André; Ivers-Tiffée, Ellen

doi:10.1016/j.jpowsour.2016.01.002

Cited by 47 publications

(36 citation statements)

References 36 publications

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“…There are quite a few reports about the interface between SEs and LEs, with the earliest ones by Ogumi and co-workers [41][42][43][44][45][46]. These studies and more recent ones [5,[47][48][49] almost exclusively rely on electrical (mostly impedance) measurements. Information on the origin of the interface resistances is scarce, and only limited chemical analysis of the interfaces is available.…”

Section: Introductionmentioning

confidence: 99%

From Liquid- to Solid-State Batteries: Ion Transfer Kinetics of Heteroionic Interfaces

Weiß

Simon

Busche

et al. 2020

Electrochem. Energ. Rev.

132

109

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Hybrid battery cells combining liquid electrolytes (LEs) with inorganic solid electrolyte (SE) separators or different SEs and polymer electrolytes (PEs), respectively, are developed to solve the issues of single-electrolyte cells. Among the issues that can be solved are detrimental shuttle effects, decomposition reactions between the electrolyte and the electrodes, and dendrite propagation. However, the introduction of new interfaces by contacting different ionic conductors leads to other problems, which cannot be neglected before commercialization is possible. The interfaces between the different types of ionic conductors (LE/SE and PE/SE) often result in significant charge-transfer resistances, which increase the internal resistance considerably. This review highlights studies evaluating the interfacial resistances and activation barriers in such systems to present an overview of the issues still hampering hybrid battery systems. The interfaces between different SEs in hybrid all-solid-state batteries (SSBs) are considered as well. In addition, a short summary of physicochemical models describing heteroionic interfaces-interfaces between two different ion conductors-is given in an attempt to explain high interface resistances. In doing so, we hope to inspire future work on the crucial topic of interface optimization toward better SSBs.

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Section: Introductionmentioning

confidence: 99%

From Liquid- to Solid-State Batteries: Ion Transfer Kinetics of Heteroionic Interfaces

Weiß

Simon

Busche

et al. 2020

Electrochem. Energ. Rev.

132

109

View full text Add to dashboard Cite

show abstract

“…A Li + conductivity as high as 4.8×10 −4 S cm −1 at 25 °C was achieved by the optimization of the domain size and the Li concentration at the domain boundaries. Similarly to the LATP case, the reduction of Ti 4+ in direct contact with Li hinders the practical application of LLTO in SSLBs with Li NEs and necessitates further research into the surface stabilization with protective layers …”

Section: Key Technologies For Solid‐state Lithium Batteriesmentioning

confidence: 99%

“…Similarly to the LATP case, the reduction of Ti 4 + in direct contact with Li hinders the practical application of LLTO in SSLBs with Li NEs and necessitates further research into the surface stabilization with protective layers. [117,118] Unlike NASICON and perovskite families, garnet-type Li + conductors have high chemical stability against the reduction reactions that can occur when the conductor is in direct contact with Li metal, which made them attractive for use in SSLBs. [119] Murugan et al reported the study on the synthesis of cubicstructured Li 7 La 3 Zr 2 O 12 (LLZO) showing a Li + conductivity of 3.0 × 10 À 4 S cm À 1 with a low activation energy of 0.3 eV.…”

Section: Oxide-based Solid Electrolytesmentioning

confidence: 99%

Solid‐State Lithium Batteries: Bipolar Design, Fabrication, and Electrochemistry

et al. 2019

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There are increasing demands for large‐scale energy storage technologies for efficient utilization of clean and sustainable energy sources. Solid‐state lithium batteries (SSLBs) based on non‐ or less‐flammable solid electrolytes (SEs) are attracting great attention, owing to their enhanced safety in comparison to conventional Li‐ion batteries. Moreover, SSLBs can provide great benefits in terms of battery performance (power and energy densities) and cost when constructed using a bipolar design. In this review, we introduce the general aspects of the bipolar battery architecture and provide a brief overview of the essential components and technologies for bipolar SSLBs: Li+‐conducting SEs, composite electrodes, and bipolar plates. Furthermore, we review the recent progress in the design and construction of bipolar SSLBs with emphasis on the fabrication techniques of SEs and SSLBs and the engineering approaches to improve their electrochemical properties.

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“…An ideal tool for the qualitative interpretation of impedance spectra of complex electrochemical systems—as lithium‐ion batteries—is the distribution of relaxation times (DRT) method . It enables a well‐founded determination of the number of time constants and thus of the number of loss processes from the spectrum . In a previous study, we deduced the exact assignment of the time constants to the corresponding underlying loss processes in lithium‐ion cells .…”

Section: Introductionmentioning

confidence: 99%

Impedance Spectroscopic Investigation of the Impact of Erroneous Cell Assembly on the Aging of Lithium‐Ion Batteries

et al. 2019

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The impact of erroneously aligned electrodes on the aging of stacked large‐format lithium‐ion batteries is monitored by electrochemical impedance spectroscopy (EIS). Based on the application of the distribution of relaxation times (DRT) method, the deterioration of the kinetics of anode and cathode due to prolonged cycling can be determined individually. Cells with different degrees of erroneous electrode positioning are produced and compared. Thereby, the origin of the accelerated aging of cells with misaligned electrodes is revealed.

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Interface and grain boundary resistance of a lithium lanthanum titanate (Li3xLa2/3−xTiO3, LLTO) solid electrolyte

Cited by 47 publications

References 36 publications

From Liquid- to Solid-State Batteries: Ion Transfer Kinetics of Heteroionic Interfaces

From Liquid- to Solid-State Batteries: Ion Transfer Kinetics of Heteroionic Interfaces

Solid‐State Lithium Batteries: Bipolar Design, Fabrication, and Electrochemistry

Impedance Spectroscopic Investigation of the Impact of Erroneous Cell Assembly on the Aging of Lithium‐Ion Batteries

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