MgH2-CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries

El Kharbachi Abdelouahab; Uesato Hiroki; Kawai Hironori; Wenner Sigurd; Miyaoka Hiroki; Sorby Magnus H.; Fjellvag Helmer; Ichikawa Takayuki; Hauback Bjorn C.

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MgH2-CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries

机译：MGH2-COO：基于LibH4的全固态锂离子电池的转换型复合电极

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Several studies have demonstrated that MgH2 is a promising conversion-type anode toward Li. A major obstacle is the reversible capacity during cycling. Electrochemical co-existence of a mixed metal hydride-oxide conversion type anode is demonstrated for lithium ion batteries using a solid-state electrolyte. 75MgH(2)25CoO anodes are obtained from optimized mixing conditions avoiding reactions occurring during high-energy ball-milling. Electrochemical tests are carried out to investigate the cycling capability and reversibility of the on-going conversion reactions. The cycling led to formation of a single-plateau nanocomposite electrode with higher reversibility yield, lowered discharge-charge hysteresis and mitigated kinetic effect at high C-rate compared to MgH2 anodes. It is believed that reduced diffusion pathways and less polarized electrodes are the origin of the improved properties. The designed composite-electrode shows good preservation and suitability with LiBH4 solid electrolyte as revealed from electron microscopy analyses and X-ray photoelectron spectroscopy.

机译：几项研究表明，MGH2是对Li的有前途的转换型阳极。循环期间的主要障碍是可逆的能力。使用固态电解质对锂离子电池进行了混合金属氢化物氧化物转化型阳极的电化学共存。 75mgH（2）25COO阳极是通过优化的混合条件获得的，避免在高能球磨期间发生的反应。进行电化学试验，以研究循环能力和持续转化反应的可逆性。与MGH2阳极相比，循环导致具有较高的可逆性产率，降低的排出电荷滞后和缓释动力学效果的单高原纳米复合材料。据信，降低的扩散途径和较少的偏振电极是改善性质的起源。如电子显微镜分析和X射线光电子体光谱所示，所设计的复合电极显示出良好的保存和适合于LibH4固体电解质。

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来源
《RSC Advances》 |2018年第41期|共7页
作者
El Kharbachi Abdelouahab; Uesato Hiroki; Kawai Hironori; Wenner Sigurd; Miyaoka Hiroki; Sorby Magnus H.; Fjellvag Helmer; Ichikawa Takayuki; Hauback Bjorn C.;
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Inst Energy Technol POB 40 NO-2027 Kjeller Norway;

Hiroshima Univ Inst Adv Mat Res 1-3-1 Kagamiyama Higashihiroshima 7398530 Japan;

Hiroshima Univ Inst Adv Mat Res 1-3-1 Kagamiyama Higashihiroshima 7398530 Japan;

SINTEF Mat &

Chem POB 4760 Sluppen NO-7465 Trondheim Norway;

Hiroshima Univ Inst Adv Mat Res 1-3-1 Kagamiyama Higashihiroshima 7398530 Japan;

Inst Energy Technol POB 40 NO-2027 Kjeller Norway;

Univ Oslo Ctr Mat Sci &

Nanotechnol SMN POB 1126 Blindern NO-0318 Oslo Norway;

Hiroshima Univ Inst Adv Mat Res 1-3-1 Kagamiyama Higashihiroshima 7398530 Japan;

Inst Energy Technol POB 40 NO-2027 Kjeller Norway;

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正文语种 eng
中图分类化学;
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1. MgH2-CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries [J] . El Kharbachi Abdelouahab, Uesato Hiroki, Kawai Hironori, RSC Advances . 2018,第41期

机译：MGH2-COO：基于LibH4的全固态锂离子电池的转换型复合电极
2. Microband-Array Electrode Technique for the Detection of Reaction Distributions in the Depth Direction of Composite Electrodes for the All-Solid-State Lithium-Ion Batteries [J] . Masanobu Chiku, Keiichiro Ota, Eiji Higuchi, ACS Omega . 2020,第27期

机译：用于检测全固态锂离子电池的复合电极深度方向中的反应分布的微阵列阵列电极技术
3. 5V-class bulk-type all-solid-state rechargeable lithium batteries with electrode-solid electrolyte composite electrodes prepared by aerosol deposition [J] . Iriyama Yasutoshi, Wadaguchi Masaki, Yoshida Koki, Journal of power sources . 2018,第MAY1期

机译：气溶胶沉积制备的5V级块状全固态可充电锂电池及其电极-固体电解质复合电极
4. Evaluation of Reaction Distributions in Composite Positive Electrode Layers of All-Solid-State Lithium Batteries by Raman Imaging [C] . Misae Otoyama, Atsushi Sakuda, Akitoshi Hayashi 日本化学会春季年会講演予稿集 . 2018

机译：拉曼成像对全固态锂电池复合正电极层反应分布的评价
5. Solid-State Electrode Engineering and Material Processing for All-Solid-State Lithium and Lithium-Ion Batteries. [D] . Yersak, Thomas A. 2013

机译：全固态锂和锂离子电池的固态电极工程和材料处理。
6. Microband-Array Electrode Technique for the Detectionof Reaction Distributions in the Depth Direction of Composite Electrodesfor the All-Solid-State Lithium-Ion Batteries [O] . Masanobu Chiku, Keiichiro Ota, Eiji Higuchi, 2020

机译：检测微带阵列电极技术电极深度方向的反应分布用于全固态锂离子电池
7. MgH2–CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries [O] . Abdelouahab El Kharbachi, Hiroki Uesato, Hironori Kawai, 2018

机译：MGH2-COO：基于LibH4的全固态锂离子电池的转换型复合电极

MgH2-CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries

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