Fabrication and impedance analysis for designed composite layers with polymer and inorganic electrolytes leading to high conductivity

Kitajima, Shintaro; Kitaura, Hirokazu; Im, Dongmin; Hwang, Yoohwa; Ishida, M.; Zhou, Haoshen

doi:10.1016/j.ssi.2017.12.018

Cited by 13 publications

(10 citation statements)

References 23 publications

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“…As shown in Figure b, without the addition of LiClO 4 , the PAN:LLZTO composite possesses a very low ionic conductivity of 6.0 × 10 –8 S cm –1 in spite of the unprecedented high content (∼70.8 wt %, equivalent to 34.3 vol %) of the inorganic Li + conductor, indicating that no percolated ceramic phase was formed in the BISCs. This structure is unique compared to conventional CSEs that aim at forming a continuous ionic conducting path (through the inorganic phase or the organic/ceramic interface) via constructing a percolated ceramic phase. , Once loaded with Li salt, ionic conductivity rises by more than 4 orders of magnitude, with a peak value of 1.18 × 10 –3 S cm –1 at a molar ratio [Li + ]/[−CN] of ∼1:10. Higher LiClO 4 contents result in a decrease of the ionic conductivity due to the presence of crystalline LiClO 4 .…”

Section: Results and Discussionmentioning

confidence: 99%

Superionic Conductors via Bulk Interfacial Conduction

Shen

et al. 2020

J. Am. Chem. Soc.

132

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Superionic conductors with ionic conductivity on the order of mS cm −1 are expected to revolutionize the development of solid-state batteries (SSBs). However, currently available superionic conductors are limited to only a few structural families such as garnet oxides and sulfide-based glass/ceramic. Interfaces in composite systems such as alumina in lithium iodide have long been identified as a viable ionic conduction channel, but practical superionic conductors employing the interfacial conduction mechanism are yet to be realized. Here we report a novel method that creates continuous interfaces in the bulk of composite thin films. Ions can conduct through the interface, and consequently, the inorganic phase can be ionically insulating in this type of bulk interface superionic conductors (BISCs). Ionic conductivities of lithium, sodium, and magnesium ion BISCs have reached 1.16 mS cm −1 , 0.40 mS cm −1 , and 0.23 mS cm −1 at 25 °C in 25 μm thick films, corresponding to areal conductance as high as 464 mS cm −2 , 160 mS cm −2 , and 92 mS cm −2 , respectively. Ultralow overpotential and stable long-term cycling for up to 5000 h were obtained for solid-state Li metal symmetric batteries employing Li ion BISCs. This work opens new structural space for superionic conductors and urges for future investigations on detailed conduction mechanisms and material design principles.

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Section: Results and Discussionmentioning

confidence: 99%

Superionic Conductors via Bulk Interfacial Conduction

Shen

et al. 2020

J. Am. Chem. Soc.

132

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“…In general, inorganic additives can improve the interface between the polymer electrolyte and the electrode, meanwhile improving the interfacial compatibility between the polymer electrolyte and the lithium electrode by capturing impurities in the battery system. Inorganic materials are generally divided into two categories [49,50,51]: those that are inactive in lithium ion conduction process, e.g., SiO 2 , TiO 2 , ZrO 2 , Al 2 O 3 , ZnO, MgO and etc., and those that are active in lithium ion transport, e.g., Li 3 N, LiAlO 2 , and so on. Scrosati et al [52] studied the influence of different inorganic fillers (γ-LiAlO 2 , Al 2 O 3 , SiO 2 ) on the performance of a solid-polymer-electrolyzed PEO–LiCF 3 SO 3 system.…”

Section: Synthetic Development Of Pspesmentioning

confidence: 99%

Development of the PEO Based Solid Polymer Electrolytes for All-Solid State Lithium Ion Batteries

et al. 2018

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Solid polymer electrolytes (SPEs) have attracted considerable attention due to the rapid development of the need for more safety and powerful lithium ion batteries. The prime requirements of solid polymer electrolytes are high ion conductivity, low glass transition temperature, excellent solubility to the conductive lithium salt, and good interface stability against Li anode, which makes PEO and its derivatives potential candidate polymer matrixes. This review mainly encompasses on the synthetic development of PEO-based SPEs (PSPEs), and the potential application of the resulting PSPEs for high performance, all-solid-state lithium ion batteries.

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“…However, it is still unclear what the mechanism is. [33][34][35] Currently, several mechanisms have been proposed. (1) Mechanism for interfacial transport.…”

Section: + Transport In Inorganic-organic Composite Electrolytesmentioning

confidence: 99%

Inorganic Composites Improving Conductivities of Solid Polymer Electrolytes for Lithium Batteries: A Review

et al. 2023

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For high‐energy‐density lithium batteries, the research and development of solid‐state electrolytes is crucial. Inorganic‐organic composite electrolytes with high mechanical strength and ionic conductivity of inorganic ceramic electrolytes, as well as high interfacial compatibility of polymer electrolytes, have become a current research hotspot. Based on a brief discussion of lithium dendrite growth and Li+ ion transport mechanisms, this article provides a comprehensive review of the nanostructure design and performance of inorganic‐organic composite electrolytes in recent years, and focuses on the mechanism of homogeneous monolayer composite electrolytes and heterogeneous multilayer composite electrolytes to enhance the performance of electrolytes. In addition, the future prospect of inorganic‐organic composite electrolytes is discussed, providing practical guidance for researchers in this field.

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Fabrication and impedance analysis for designed composite layers with polymer and inorganic electrolytes leading to high conductivity

Cited by 13 publications

References 23 publications

Superionic Conductors via Bulk Interfacial Conduction

Superionic Conductors via Bulk Interfacial Conduction

Development of the PEO Based Solid Polymer Electrolytes for All-Solid State Lithium Ion Batteries

Inorganic Composites Improving Conductivities of Solid Polymer Electrolytes for Lithium Batteries: A Review

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