Significant Promotion to Electrical Properties of Sm Modified BaLa&lt;I&gt;&lt;SUB&gt;x&lt;/SUB&gt;&lt;/I&gt;Sm&lt;I&gt;&lt;SUB&gt;x&lt;/SUB&gt;&lt;/I&gt;TiO&lt;SUB&gt;3&lt;/SUB&gt; (0.001 ≤ &lt;I&gt;x&lt;/I&gt; ≤ 0.005) Powders: A Novel Precursor Gaseous Penetration Route

Li, Jialong; Hao, Sue; Wang, Fangwei; Gao, Yang; Wang, Jiatao; Shen, Yunfeng

doi:10.1166/sam.2015.2005

Cited by 5 publications

(2 citation statements)

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“…[5][6][7] Conventional Li metal NE batteries (LMBs) contain carbonate-type electrolytes, including propylene carbonate-(PC) and ethylene carbonate (EC)-based electrolytes. The use of additives, such as ethylene sulfite (ES), 8 vinylene carbonate (VC) [9][10][11] and fluoroethylene carbonate (FEC), [12][13][14] and replacing the Li metal NE with Li pre-doped Si, 15 has been suggested as a way of avoiding the short circuiting of cells caused by Li dendrite growth. However, the additives commonly used to control the solid electrolyte interphase (SEI) film do not effectively work in LAB systems.…”

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confidence: 99%

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Saito

Fujinami

Yamada

et al. 2017

J. Electrochem. Soc.

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To clarify the relationship between Li + transport rate in glyme-based electrolytes and Li deposition/dissolution behavior at Li metal negative electrode (NE) in Li-air batteries (LAB) systems, 1.0 M tetraglyme (G4) electrolytes were prepared containing a Li salt of LiSO 3 CF 3 , LiN(SO 2 CF 3 ) 2 , or LiN(SO 2 F) 2 . Two aspects of Li + transfer between the two phases, i.e., G4 electrolyte | Li metal NE, were evaluated, namely i) Li + supplying rate and ii) Li + charge transfer rate through solid electrolyte interphase (SEI) films. The former was investigated by self-diffusion coefficients D of Li + , anions, and G4 solvent together with ionic conductivity σ, viscosity, density, and apparent dissociation degree α app of the Li salts estimated by the Nernst-Einstein equation. The latter was evaluated with Li | Li symmetric and LAB (Li | O 2 ) cells containing the electrolytes. The Li deposition/dissolution reaction basically depended on the Li + supplying rate in the Li | Li cell; however Li dendrites were formed. Conversely, the LAB cell performance was controlled by Li oxide layers formed on the NE, resulting in similar discharge/charge properties without Li dendrites. The effects of surface-oxidation was also confirmed with Li | Li cells containing O 2 gas, where both SEI and charge transfer resistances were In recent years, rechargeable non-aqueous Li-air batteries (LABs) have received increasing attention as large-scale energy storage devices for long-range electric vehicles (EVs), because of their high energy density, more than five times greater than that of conventional Liion batteries (LIBs).1-4 However, some problems need to be addressed to enable the realization of this technology, including choking of the air electrode by Li 2 O 2 generated during discharging and the high overpotential required by Li 2 O 2 oxidation reaction during charging. These factors lead to oxidative deterioration of the electrolytes and the air electrode, which consists of porous carbon materials. At the Li metal negative electrode (NE), Li dendrite growth during discharge/charge cycles also poses serious safety problems. 15 has been suggested as a way of avoiding the short circuiting of cells caused by Li dendrite growth. However, the additives commonly used to control the solid electrolyte interphase (SEI) film do not effectively work in LAB systems. In these systems the Li dissolution/deposition reaction is repeated many times and O 2 gas is fed in from the air electrode, resulting in destabilization of the SEI films. Furthermore, carbonatetype electrolytes are decomposed by O 2 − radicals generated at the air electrode during the discharge process. Recently, ether-based electrolytes, based on 1,2 dimethoxyethane (DME or G1), diglyme (G2), triglyme (G3), or tetraglyme (G4) as a solvent, have been widely investigated for non-aqueous LAB systems. 16 These ethers have high oxygen solubility and relatively low electric constants, resulting in lower reactivity toward O 2 − radicals than that of carbonate-based electrolytes.17 H...

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confidence: 99%

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Saito

Fujinami

Yamada

et al. 2017

J. Electrochem. Soc.

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“…Furthermore, a novel modification method, gaseous rare‐earth penetration, has been adopted to decrease the resistivity and prepare Cu@BaTiO 3 conductive powders. Since Hao Sue [16, 17] adopted rare‐earth penetration technology to lower the resistivity of titanate materials significantly for the first time, rare‐earth penetration technology has received more and more attention. Rare‐earth penetration [16, 18] is a new material modification method to make rare‐earth cations penetrate into ceramic material driven by the concentration gradient and thermal motion.…”

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confidence: 99%

Synthesis of core–shell Cu@BaTiO ₃ conductive powders modified by gaseous rare‐earth penetration

Wang

Hao

Fang

et al. 2016

Micro & Nano Letters

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The Cu@BaTiO 3 powders were synthesised by a simple low-cost hydrothermal method for the very first time. The effects of copper (Cu) contents on the formation of core(Cu)@shell(BaTiO 3) powders have been investigated by X-ray powder diffraction, scanning electron microscopy and energy dispersive spectrometer. Notably, the existence of Cu@BaTiO 3 powders can only be obtained when Cu content happened to be 20%. A novel modification method, gaseous rare-earth penetration, has been adopted to reduce the resistivity and prepare Cu@BaTiO 3 conductive powders. The results indicated that rare-earth penetration turned out an effective way to lower the resistivity of Cu@BaTiO 3 powders significantly. Surprisingly, the core-shell structure of Cu@BaTiO 3 powders has not perished after rare-earth penetration. Furthermore, the resistivity of Cu@BaTiO 3 conductive powders turned out to be 8.30 × 10 −4 Ω m, which can be a promising candidate for novel and environmental-friendly conductive powders.

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Synthesis of epoxy acrylate and preparation of dual-curable ECAs based on conductive ceramic powders

Zhang

Hao

Shang

et al. 2015

J Mater Sci: Mater Electron

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Significant Promotion to Electrical Properties of Sm Modified BaLa<I><SUB>x</SUB></I>Sm<I><SUB>x</SUB></I>TiO<SUB>3</SUB> (0.001 ≤ <I>x</I> ≤ 0.005) Powders: A Novel Precursor Gaseous Penetration Route

Cited by 5 publications

References 0 publications

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Synthesis of core–shell Cu@BaTiO ₃ conductive powders modified by gaseous rare‐earth penetration

Synthesis of epoxy acrylate and preparation of dual-curable ECAs based on conductive ceramic powders

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Significant Promotion to Electrical Properties of Sm Modified BaLa<I><SUB>x</SUB></I>Sm<I><SUB>x</SUB></I>TiO<SUB>3</SUB> (0.001 ≤ <I>x</I> ≤ 0.005) Powders: A Novel Precursor Gaseous Penetration Route

Cited by 5 publications

References 0 publications

Effects of Li Salt Anions and O2Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Effects of Li Salt Anions and O2Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Synthesis of core–shell Cu@BaTiO 3 conductive powders modified by gaseous rare‐earth penetration

Synthesis of epoxy acrylate and preparation of dual-curable ECAs based on conductive ceramic powders

Contact Info

Product

Resources

About

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Effects of Li Salt Anions and O₂Gas on Li Dissolution/Deposition Behavior at Li Metal Negative Electrode for Non-Aqueous Li-Air Batteries

Synthesis of core–shell Cu@BaTiO ₃ conductive powders modified by gaseous rare‐earth penetration