Interfacial Impedance Studies of Multilayer Structured Electrolyte Fabricated With Solvent-Casted PEO10–LiN(CF3SO2)2 and Ceramic Li1.3Al0.3Ti1.7(PO4)3 and Its Application in All-Solid-State Lithium Ion Batteries

Liu, Wei; Milcarek, Ryan J.; Falkenstein‐Smith, Ryan; Ahn, Jeongmin

doi:10.1115/1.4035294

Cited by 13 publications

(7 citation statements)

References 33 publications

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“…Sandwich or bilayer setups ( Fig. 1b) can be used either for the combination of a PE with an SE [22,23,[27][28][29] or for two different SEs [30]. PEs can be stabler against Li metal [7], thus preventing SE degradation at the anode, and are able to retain contact despite occurring volume changes.…”

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.

135

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.

135

109

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“…To overcome these problems, protecting thin layers composed of PEO or Al 2 O 3 has been introduced to minimize the interaction with Li ion [38,40]. An LATP pellet was dip-coated by PEO for a protecting layer formation between the LATP and Li metal surface where the whole system can exhibit ionic conductivity of 5.03 × 10 −6 S/cm at 23 °C [41]. In this study, new battery systems are designed without protecting layer introduction, which also effectively work at room temperature.…”

Section: Introductionmentioning

confidence: 99%

All-Solid-State Lithium Battery Working without an Additional Separator in a Polymeric Electrolyte

Cho

Kim²,

Kim

et al. 2018

Polymers

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Considering the safety issues of Li ion batteries, an all-solid-state polymer electrolyte has been one of the promising solutions. Achieving a Li ion conductivity of a solid-state electrolyte comparable to that of a liquid electrolyte (>1 mS/cm) is particularly challenging. Even with characteristic ion conductivity, employment of a polyethylene oxide (PEO) solid electrolyte has not been sufficient due to high crystallinity. In this study, hybrid solid electrolyte (HSE) systems have been designed with Li1.3Al0.3Ti0.7(PO4)3 (LATP), PEO and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). A hybrid solid cathode (HSC) is also designed using LATP, PEO and lithium cobalt oxide (LiCoO2, LCO)—lithium manganese oxide (LiMn2O4, LMO). The designed HSE system has 2.0 × 10−4 S/cm (23 °C) and 1.6 × 10−3 S/cm (55 °C) with a 6.0 V electrochemical stability without an additional separator membrane introduction. In these systems, succinonitrile (SN) has been incorporated as a plasticizer to reduce crystallinity of PEO for practical all-solid Li battery system development. The designed HSC/HSE/Li metal cell in this study operates without any leakage and short-circuits even under the broken cell condition. The designed HSC/HSE/Li metal cell in this study displays an initial charge capacity of 82/62 mAh/g (23 °C) and 123.4/102.7 mAh/g (55 °C). The developed system overcomes typical disadvantages of internal resistance induced by Ti ion reduction. This study contributes to a new technology development of all-solid-state Li battery for commercial product design.

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“…To combine the advantages of both types of electrolytes, composite electrolytes have been developed where ceramic particles are dispersed in a polymer electrolyte matrix (Figure a) . As demonstrated in previous work, the fillers could be either non-Li + conducting, such as Al 2 O 3 , SiO 2 , TiO 2 , and ZrO 2 , or Li + conducting, such as Li 0.5 La 0.5 TiO 3 (LLTO), LLZO, and LATP. , For nonconducting fillers, ionic conductivities in the order of 10 –5 S/cm can be achieved, and the mechanism is considered to be the amorphorization of PEO and the creation of space-charge regions to facilitate Li + transport. , For ion-conducting fillers, the ionic conductivity in the order of 10 –4 S/cm has been reported . However, the arrangement of fillers is either uniform dispersion or fibers nearly in parallel to the surface of the solid electrolyte membrane .…”

mentioning

confidence: 99%

A Flexible Solid Composite Electrolyte with Vertically Aligned and Connected Ion-Conducting Nanoparticles for Lithium Batteries

et al. 2017

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Replacing flammable organic liquid electrolytes with solid Li-ion conductors is a promising approach to realize safe rechargeable batteries with high energy density. Composite solid electrolytes, which are comprised of a polymer matrix with ceramic Li-ion conductors dispersed inside, are attractive, since they combine the flexibility of polymer electrolytes and high ionic conductivities of ceramic electrolytes. However, the high conductivity of ceramic fillers is largely compromised by the low conductivity of the matrix, especially when nanoparticles (NPs) are used. Therefore, optimizations of the geometry of ceramic fillers are critical to further enhance the conductivity of composite electrolytes. Here we report the vertically aligned and connected LiAlTi(PO) (LATP) NPs in the poly(ethylene oxide) (PEO) matrix to maximize the ionic conduction, while maintaining the flexibility of the composite. This vertically aligned structure can be fabricated by an ice-templating-based method, and its conductivity reaches 0.52 × 10 S/cm, which is 3.6 times that of the composite electrolyte with randomly dispersed LATP NPs. The composite electrolyte also shows enhanced thermal and electrochemical stability compared to the pure PEO electrolyte. This method opens a new approach to optimize ion conduction in composite solid electrolytes for next-generation rechargeable batteries.

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Interfacial Impedance Studies of Multilayer Structured Electrolyte Fabricated With Solvent-Casted PEO10–LiN(CF3SO2)2 and Ceramic Li1.3Al0.3Ti1.7(PO4)3 and Its Application in All-Solid-State Lithium Ion Batteries

Cited by 13 publications

References 33 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

All-Solid-State Lithium Battery Working without an Additional Separator in a Polymeric Electrolyte

A Flexible Solid Composite Electrolyte with Vertically Aligned and Connected Ion-Conducting Nanoparticles for Lithium Batteries

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