Nanoscale Mapping of Extrinsic Interfaces in Hybrid Solid Electrolytes

Dixit, Marm; Zaman, Wahid; Hortance, Nicholas; Vujic, Stella; Harkey, Brice A.; Shen, Fengyu; Tsai, Wan‐Yu; Andrade, Vincent De; Chen, X. Chelsea; Balke, Nina; Hatzell, Kelsey B.

doi:10.1016/j.joule.2019.11.015

Cited by 107 publications

(96 citation statements)

References 51 publications

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“…Fused by PSL electrolyte, the HCSE showed a good integration in which the bulk was well‐connected for ionic conduction. By weighing the ionic conductivity and surface roughness (Figure S3, Supporting Information, more uniform surface was more conducive to the interfacial contact and surface‐directional ionic transport), [ 37 ] as schematically shown in Figure 2e, the areal content of the LLZT within HCSE was finally set to 14.5 mg cm –2 and investigated in various performances. The HCSE with the optimized LLZT content could display a high bulky ionic conductivity of 2.73 × 10 −4 S cm −1 at 25 °C and further ascended with rising temperature (Figure S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Composite‐Solid‐Electrolyte with High Electrochemical Stability and Interfacial Regulation for Boosting Ultra‐Stable Lithium Batteries

Sun

Yao

et al. 2020

Adv Funct Materials

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Solid‐state electrolytes have drawn enormous attention to reviving lithium batteries but have also been barricaded in lower ionic conductivity at room temperature, awkward interfacial contact, and severe polarization. Herein, a sort of hierarchical composite solid electrolyte combined with a “polymer‐in‐separator” matrix and “garnet‐at‐interface” layer is prepared via a facile process. The commercial polyvinylidene fluoride‐based separator is applied as a host for the polymer‐based ionic conductor, which concurrently inhibits over‐polarization of polymer matrix and elevates high‐voltage compatibility versus cathode. Attached on the side, the compact garnet (Li6.4La3Zr1.4Ta0.6O12) layer is glued to physically inhibit the overgrowth of lithium dendrite and regulate the interfacial electrochemistry. At 25 °C, the electrolyte exhibits a high ionic conductivity of 2.73 × 10−4 S cm−1 and a decent electrochemical window of 4.77 V. Benefiting from this elaborate electrolyte, the symmetrical Li||Li battery achieves steady lithium plating/stripping more than 4800 h at 0.5 mA cm−2 without dendrites and short‐circuit. The solid‐state batteries deliver preferable capacity output with outstanding cycling stability (95.2% capacity retained after 500 cycles, 79.0% after 1000 cycles at 1 C) at ambient temperature. This hierarchical structure design of electrolyte may reveal great potentials for future development in fields of solid‐state metal batteries.

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Section: Resultsmentioning

confidence: 99%

Hierarchical Composite‐Solid‐Electrolyte with High Electrochemical Stability and Interfacial Regulation for Boosting Ultra‐Stable Lithium Batteries

Sun

Yao

et al. 2020

Adv Funct Materials

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“…The enhanced electrochemical stability of the SCE can broaden the application range of the battery. In addition to the electrochemical stability, the interface stability between electrolyte and the lithium anode is also a vital indicator that affects the electrochemical performance of the battery [ 44 , 45 ]. EIS method is applied to measure the impedance plots of Li/PEO/Li and Li/PEO/PA6 30%/Li symmetric batteries taken after different storage times at 60 °C.…”

Section: Resultsmentioning

confidence: 99%

Application of polyamide 6 microfiber non-woven fabrics in the large-scale production of all-solid-state lithium metal batteries

Gao

Sarmad

et al. 2020

Journal of Power Sources

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All-solid-state electrolytes have received extensive attention due to their excellent safety and good electrochemical performance. However, due to the harsh conditions of the preparation process, the commercial production of all-solid-state electrolytes remains a challenge. The outbreak of the novel coronavirus pneumonia (COVID-19) has caused great inconvenience to people, while also allowing soft, lightweight and mass-producible non-woven fabrics in masks come into sight. Here, a polymer/polymer solid composite electrolyte is obtained by introducing the polyamide 6 (PA6) microfiber non-woven fabric into PEO polymer through the hot-pressing method. The addition of the PA6 non-woven fabric with lithium-philic properties can not only reduce the crystallinity of the polymer, but also provide more functional transmission sites and then promote the migration of lithium ions at the molecular level. Moreover, due to the sufficient mechanical strength and flexibility of the PA6 non-woven fabric, the composite electrolyte shows excellent inhibition ability of lithium dendrite growth and high electrochemical stability. The novel design concept of introducing low-cost and large-scale production of non-woven fabrics into all-solid-state composite electrolytes to develop high-performance lithium metal batteries is attractive, and can also be broadened to the combination of different types of polymers to meet the needs of various batteries.

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“…where Z d (0) is the diameter of the low frequency arc in the EIS Nyquist plot. In real systems where positively charged ion triples and neutral ion pairs exist, oen t Li > t + , t + as dened from eqn (4). In this case, an additional interfacial resistance corresponding to solid electrolyte interphase (SEI) appears (Fig.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 97%

Polymer-based hybrid battery electrolytes: theoretical insights, recent advances and challenges

et al. 2021

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Nanoscale Mapping of Extrinsic Interfaces in Hybrid Solid Electrolytes

Cited by 107 publications

References 51 publications

Hierarchical Composite‐Solid‐Electrolyte with High Electrochemical Stability and Interfacial Regulation for Boosting Ultra‐Stable Lithium Batteries

Hierarchical Composite‐Solid‐Electrolyte with High Electrochemical Stability and Interfacial Regulation for Boosting Ultra‐Stable Lithium Batteries

Application of polyamide 6 microfiber non-woven fabrics in the large-scale production of all-solid-state lithium metal batteries

Polymer-based hybrid battery electrolytes: theoretical insights, recent advances and challenges

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