scholarly journals Theoretical design of solid electrolytes with superb ionic conductivity: alloying effect on Li+ transportation in cubic Li6PA5X chalcogenides

2017 ◽  
Vol 5 (41) ◽  
pp. 21846-21857 ◽  
Author(s):  
Zhuo Wang ◽  
Guosheng Shao
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolytes ◽  
Li Ion Batteries ◽  
Alloying Effect ◽  
Flammable Liquid ◽  
Organic Electrolytes ◽  
Safety Issues ◽  
Theoretical Design ◽  
Li Ion

It is of great importance to develop solid inorganic electrolytes with high ionic conductivity, which would thus enable solid-state Li-ion batteries to overcome the notorious safety issues with the current technology due to the use of highly flammable liquid organic electrolytes.

Enhancement of ionic conductivity of a composite polymer electrolyte via surface functionalization of SSZ-13 zeolite for all-solid-state Li-ion batteries

2021 ◽  
Author(s):  
Jae Hyun Kim ◽  
Hasan Jamal ◽  
Firoz Khan ◽  
Suyeon Hyun ◽  
Sang Won Min
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Surface Functionalization ◽  
Liquid Electrolyte ◽  
Composite Polymer Electrolyte ◽  
Li Ion Batteries ◽  
Composite Polymer ◽  
Safety Issues ◽  
Li Ion

To mitigate the safety issues of liquid electrolyte-based Li-ion batteries, there is a growing interest in the development of solid-state electrolytes (SSEs) based Li-metal batteries. Regrettably, most SSEs have low...

scholarly journals Correlation of Mechanical and Electrical Behavior of Polyethylene Oxide-Based Solid Electrolytes for All-Solid State Lithium-Ion Batteries

Batteries ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 26 ◽  
Author(s):  
Fabian Peters ◽  
Frederieke Langer ◽  
Nikolai Hillen ◽  
Katharina Koschek ◽  
Ingo Bardenhagen ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Mechanical Strength ◽  
Solid Electrolytes ◽  
Large Scale ◽  
Lithium Ion ◽  
Scale Production ◽  
Li Ion Batteries ◽  
Scanning Calorimetry ◽  
Li Ion

Mechanical and electrochemical stability are key issues for large-scale production of solid state Li-ion batteries. Polymer electrolytes can provide good ionic conductivity, but mechanical strength needs to be improved. In this study, we investigate the correlation of mechanical and electrical properties of poly (ethylene oxide) (PEO)-based solid electrolytes for Li-ion batteries. The influence of alumina and LiClO4 addition are investigated. Differential scanning calorimetry (DSC) is used to study the thermal behavior of salt-free and salt-containing samples and to identify the melting temperature. Dynamic mechanical analysis reveals the elastic properties as a function of temperature. Electrochemical properties are investigated using impedance spectroscopy. It is found that addition of alumina increases mechanical strength, while LiClO4 decreases it. Addition of LiClO4 and Al2O3 increases ionic conductivity and improves mechanical properties. However, there is no overlapping window of high mechanical strength and high ionic conductivity.

Lithium Argyrodite Sulfide Electrolytes with High Ionic Conductivity and Air Stability for All-Solid-State Li-Ion Batteries

2021 ◽  
pp. 171-179
Author(s):  
Yongheum Lee ◽  
Jiwon Jeong ◽  
Ho Jun Lee ◽  
Mingony Kim ◽  
Daseul Han ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
High Ionic Conductivity ◽  
Li Ion Batteries ◽  
Li Ion

Ultrahigh Li-ion conductive single-ion polymer electrolyte containing fluorinated polysulfonamide for quasi-solid-state Li-ion batteries

2019 ◽  
Vol 7 (42) ◽  
pp. 24251-24261 ◽  
Author(s):  
Yunyun Zhong ◽  
Lei Zhong ◽  
Shuanjin Wang ◽  
Jiaxiang Qin ◽  
Dongmei Han ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Electrolyte ◽  
Electric Vehicles ◽  
Rapid Development ◽  
Electronic Devices ◽  
Li Ion Batteries ◽  
Safety Issues ◽  
Li Ion

With the rapid development of electronic devices and electric vehicles, the requirements for their safety issues and service stabilities have become more and more strict.

scholarly journals Blend Hybrid Solid Electrolytes Based on LiTFSI Doped Silica-Polyethylene Oxide for Lithium-Ion Batteries

Membranes ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 109 ◽  
Author(s):  
Jadra Mosa ◽  
Jonh Fredy Vélez ◽  
Mario Aparicio
Keyword(s):  
Ionic Conductivity ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Sol Gel ◽  
Lithium Ion ◽  
Hybrid Structure ◽  
Hybrid Network ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Sol Gel Synthesis

Organic/inorganic hybrid membranes that are based on GTT (GPTMS-TMES-TPTE) system while using 3-Glycidoxypropyl-trimethoxysilane (GPTMS), Trimethyletoxisilane (TMES), and Trimethylolpropane triglycidyl ether (TPTE) as precursors have been obtained while using a combination of organic polymerization and sol-gel synthesis to be used as electrolytes in Li-ion batteries. Self-supported materials and thin-films solid hybrid electrolytes that were doped with Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) were prepared. The hybrid network is based on highly cross-linked structures with high ionic conductivity. The dependency of the crosslinked hybrid structure and polymerization grade on ionic conductivity is studied. Ionic conductivity depends on triepoxy precursor (TPTE) and the accessibility of Li ions in the organic network, reaching a maximum ionic conductivity of 1.3 × 10−4 and 1.4 × 10−3 S cm−1 at room temperature and 60 °C, respectively. A wide electrochemical stability window in the range of 1.5–5 V facilitates its use as solid electrolytes in next-generation of Li-ion batteries.

scholarly journals Reduced Sintering Temperatures of Li+ Conductive Li1.3Al0.3Ti1.7(PO4)3 Ceramics

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 408
Author(s):  
Katja Waetzig ◽  
Christian Heubner ◽  
Mihails Kusnezoff
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Cathode Material ◽  
Solid Electrolyte ◽  
Composite Cathode ◽  
Li Ion Batteries ◽  
Promising Candidate ◽  
Composite Cathodes ◽  
Solid State Batteries ◽  
Li Ion

All-solid-state batteries (ASSB) are considered promising candidates for future energy storage and advanced electric mobility. When compared to conventional Li-ion batteries, the substitution of Li-ion conductive, flammable liquids by a solid electrolyte and the application of Li-metal anodes substantially increase safety and energy density. The solid electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP) provides high Li-ion conductivity of about 10−3 S/cm and is considered a highly promising candidate for both the solid electrolyte-separator and the ionically conductive part of the all-solid state composite cathode, consisting of the cathode material, the solid electrolyte, and an electron conductor. Co-sintering of the composite cathode is a sophisticated challenge, because temperatures above 1000 °C are typically required to achieve the maximum ionic conductivity of LATP but provoke reactions with the cathode material, inhibiting proper electrochemical functioning in the ASSB. In the present study, the application of sintering aids with different melting points and their impact on the sinterability and the conductivity of LATP were investigated by means of optical dilatometry and impedance spectroscopy. The microstructure of the samples was analyzed by SEM. The results indicate that the sintering temperature can be reduced below 800 °C while maintaining high ionic conductivity of up to 3.6 × 10−4 S/cm. These insights can be considered a crucial step forward towards enable LATP-based composite cathodes for future ASSB.

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