Flexible Fast Lithium Ion Conducting Ceramic Electrolyte

2013 ◽  
Vol 1496 ◽  
Author(s):  
Koichi Hamamoto ◽  
Danila Matveev ◽  
Toshiaki Yamaguchi ◽  
Hirofumi Sumi ◽  
Toshio Suzuki ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Room Temperature ◽  
Lithium Ion ◽  
Sheet Forming ◽  
Type Structure ◽  
Bending Stress ◽  
Large Area ◽  
Casting Method ◽  
Ceramic Electrolyte ◽  
Ion Conducting

ABSTRACTLarge-area fast lithium ion conducting ceramic thin freestanding sheets was successfully prepared using a sheet forming technique. This ceramic sheet contains the crystalline phase of Li1+x+yAlxTi2-xSiyP3-yO12 with the NASICON type structure. The ceramic sheet showed maximum overall conductivity over 10−3 S cm−1 at room temperature. And, the developed thin ceramic sheet has sufficient flexibility against bending stress. Because a thin large-area ceramic electrolyte sheet was prepared using less energy compared with a conventional glass casting method, it is suitable for practical use.

Water-stable lithium ion conducting solid electrolyte of the Li1.4Al0.4Ti1.6−xGex(PO4)3 system (x=0–1.0) with NASICON-type structure

2013 ◽  
Vol 253 ◽  
pp. 175-180 ◽  
Author(s):  
Peng Zhang ◽  
Masaki Matsui ◽  
Atsushi Hirano ◽  
Yasuo Takeda ◽  
Osamu Yamamoto ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion ◽  
Type Structure ◽  
Nasicon Type ◽  
Ion Conducting

Fast lithium-ionic conduction in a new complex hydride–sulphide crystalline phase

2016 ◽  
Vol 52 (3) ◽  
pp. 564-566 ◽  
Author(s):  
Atsushi Unemoto ◽  
Hui Wu ◽  
Terrence J. Udovic ◽  
Motoaki Matsuo ◽  
Tamio Ikeshoji ◽  
...  
Keyword(s):  
Solid State ◽  
Crystalline Phase ◽  
Ionic Conduction ◽  
Lithium Ion ◽  
Complex Hydride ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
Ion Conducting

A new fast-lithium-ion-conducting crystalline phase formed from complex hydride and sulphide components was developed for all-solid-state batteries.

scholarly journals Flexible, solid-state, ion-conducting membrane with 3D garnet nanofiber networks for lithium batteries

2016 ◽  
Vol 113 (26) ◽  
pp. 7094-7099 ◽  
Author(s):  
Kun (Kelvin) Fu ◽  
Yunhui Gong ◽  
Jiaqi Dai ◽  
Amy Gong ◽  
Xiaogang Han ◽  
...  
Keyword(s):  
Solid State ◽  
Current Density ◽  
Room Temperature ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Hydrogen Electrode ◽  
Ion Conductor ◽  
Structural Reinforcement ◽  
Ion Conducting ◽  
A Current

Beyond state-of-the-art lithium-ion battery (LIB) technology with metallic lithium anodes to replace conventional ion intercalation anode materials is highly desirable because of lithium’s highest specific capacity (3,860 mA/g) and lowest negative electrochemical potential (∼3.040 V vs. the standard hydrogen electrode). In this work, we report for the first time, to our knowledge, a 3D lithium-ion–conducting ceramic network based on garnet-type Li6.4La3Zr2Al0.2O12 (LLZO) lithium-ion conductor to provide continuous Li+ transfer channels in a polyethylene oxide (PEO)-based composite. This composite structure further provides structural reinforcement to enhance the mechanical properties of the polymer matrix. The flexible solid-state electrolyte composite membrane exhibited an ionic conductivity of 2.5 × 10−4 S/cm at room temperature. The membrane can effectively block dendrites in a symmetric Li | electrolyte | Li cell during repeated lithium stripping/plating at room temperature, with a current density of 0.2 mA/cm2 for around 500 h and a current density of 0.5 mA/cm2 for over 300 h. These results provide an all solid ion-conducting membrane that can be applied to flexible LIBs and other electrochemical energy storage systems, such as lithium–sulfur batteries.

Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells

Science ◽  
2018 ◽  
Vol 362 (6419) ◽  
pp. 1144-1148 ◽  
Author(s):  
Victoria K. Davis ◽  
Christopher M. Bates ◽  
Kaoru Omichi ◽  
Brett M. Savoie ◽  
Nebojša Momčilović ◽  
...  
Keyword(s):  
Room Temperature ◽  
Lithium Ion ◽  
High Energy ◽  
Liquid Electrolyte ◽  
Temperature Cycling ◽  
High Energy Density ◽  
Fluoride Ion ◽  
Metal Fluoride ◽  
Operating Voltage ◽  
Ion Conducting

Fluoride ion batteries are potential “next-generation” electrochemical storage devices that offer high energy density. At present, such batteries are limited to operation at high temperatures because suitable fluoride ion–conducting electrolytes are known only in the solid state. We report a liquid fluoride ion–conducting electrolyte with high ionic conductivity, wide operating voltage, and robust chemical stability based on dry tetraalkylammonium fluoride salts in ether solvents. Pairing this liquid electrolyte with a copper–lanthanum trifluoride (Cu@LaF3) core-shell cathode, we demonstrate reversible fluorination and defluorination reactions in a fluoride ion electrochemical cell cycled at room temperature. Fluoride ion–mediated electrochemistry offers a pathway toward developing capacities beyond that of lithium ion technology.

scholarly journals Fluorinated polysulfonamide based single ion conducting room temperature applicable gel-type polymer electrolytes for lithium ion batteries

2019 ◽  
Vol 7 (1) ◽  
pp. 188-201 ◽  
Author(s):  
K. Borzutzki ◽  
J. Thienenkamp ◽  
M. Diehl ◽  
M. Winter ◽  
G. Brunklaus
Keyword(s):  
Lithium Ion Batteries ◽  
Conducting Polymer ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Lithium Ion ◽  
Polymer Backbone ◽  
Ion Conducting ◽  
Ion Conducting Polymer

Single ion conducting polymer electrolytes (SIPEs) comprised of homopolymers containing a polysulfonylamide segment in the polymer backbone are presented.

scholarly journals A Ceramic-PVDF Composite Membrane with Modified Interfaces as an Ion-Conducting Electrolyte for Solid-State Lithium-Ion Batteries Operating at Room Temperature

2018 ◽  
Vol 5 (19) ◽  
pp. 2873-2881 ◽  
Author(s):  
Jing Yu ◽  
Stephen C. T. Kwok ◽  
Ziheng Lu ◽  
Mohammed B. Effat ◽  
Yu-Qi Lyu ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Composite Membrane ◽  
Room Temperature ◽  
Lithium Ion ◽  
Ion Conducting

Atomic Layer Deposition of LiF and Lithium Ion Conducting (AlF3)(LiF)x Alloys Using Trimethylaluminum, Lithium Hexamethyldisilazide and Hydrogen Fluoride

2017 ◽  
Author(s):  
Younghee Lee ◽  
Daniela M. Piper ◽  
Andrew S. Cavanagh ◽  
Matthias J. Young ◽  
Se-Hee Lee ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Atomic Layer ◽  
Mass Gain ◽  
Alloy Film ◽  
Ex Situ ◽  
X Ray ◽  
Layer Deposition ◽  
Ion Conducting ◽  
Good Agreement

<div>Atomic layer deposition (ALD) of LiF and lithium ion conducting (AlF<sub>3</sub>)(LiF)<sub>x</sub> alloys was developed using trimethylaluminum, lithium hexamethyldisilazide (LiHMDS) and hydrogen fluoride derived from HF-pyridine solution. ALD of LiF was studied using in situ quartz crystal microbalance (QCM) and in situ quadrupole mass spectrometer (QMS) at reaction temperatures between 125°C and 250°C. A mass gain per cycle of 12 ng/(cm<sup>2</sup> cycle) was obtained from QCM measurements at 150°C and decreased at higher temperatures. QMS detected FSi(CH<sub>3</sub>)<sub>3</sub> as a reaction byproduct instead of HMDS at 150°C. LiF ALD showed self-limiting behavior. Ex situ measurements using X-ray reflectivity (XRR) and spectroscopic ellipsometry (SE) showed a growth rate of 0.5-0.6 Å/cycle, in good agreement with the in situ QCM measurements.</div><div>ALD of lithium ion conducting (AlF3)(LiF)x alloys was also demonstrated using in situ QCM and in situ QMS at reaction temperatures at 150°C A mass gain per sequence of 22 ng/(cm<sup>2</sup> cycle) was obtained from QCM measurements at 150°C. Ex situ measurements using XRR and SE showed a linear growth rate of 0.9 Å/sequence, in good agreement with the in situ QCM measurements. Stoichiometry between AlF<sub>3</sub> and LiF by QCM experiment was calculated to 1:2.8. XPS showed LiF film consist of lithium and fluorine. XPS also showed (AlF<sub>3</sub>)(LiF)x alloy consists of aluminum, lithium and fluorine. Carbon, oxygen, and nitrogen impurities were both below the detection limit of XPS. Grazing incidence X-ray diffraction (GIXRD) observed that LiF and (AlF<sub>3</sub>)(LiF)<sub>x</sub> alloy film have crystalline structures. Inductively coupled plasma mass spectrometry (ICP-MS) and ionic chromatography revealed atomic ratio of Li:F=1:1.1 and Al:Li:F=1:2.7: 5.4 for (AlF<sub>3</sub>)(LiF)<sub>x</sub> alloy film. These atomic ratios were consistent with the calculation from QCM experiments. Finally, lithium ion conductivity (AlF<sub>3</sub>)(LiF)<sub>x</sub> alloy film was measured as σ = 7.5 × 10<sup>-6</sup> S/cm.</div>

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