Preparation of Particles of Electroactive Transition Metal Compounds
电活性过渡金属化合物颗粒的制备
基本信息
- 批准号:20710090
- 负责人:
- 金额:$ 2.5万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The olivine-type compound LiMnPO_4 was prepared via a reaction between Li_3PO_4 and a MnSO_4 aqueous solution under hydrothermal conditions at 190℃. The specific surface area and particle morphology of LiMnPO_4 changed depending on the amount of water in the reaction mixtures, and the particle size decreased as the amount of water decreased. It was found that nanosized LiMnPO_4 particles of ca. 50nm can be prepared through the reaction between Li_3PO_4 and the molten aqua-complex of MnSO_4・nH_2O (n=4 or5). Galvanostatic charge and discharge tests revealed that the electrochemical reactivity of LiMnPO_4 at 30℃ increased as the particle size decreased. The small particle size contributes to the decrease in the overpotential for Mn^<2+/3+> redox and to the increase in the utilization of LiMnPO_4 as an active material in the cathode of lithium batteries.
通过Li_3PO_4和MnSO_4水溶液在190℃水热条件下反应制备了橄榄石型化合物LiMnPO_4。LiMnPO_4的比表面积和颗粒形貌随反应混合物中水量和粒径的变化而变化。结果表明,随着水量的减少,可以制备出约50nm的纳米LiMnPO_4颗粒。 Li_3PO_4和MnSO_4·nH_2O熔融水络合物(n=4或5)的恒电流充放电试验表明,LiMnPO_4在30℃下的电化学反应活性随着粒径的减小而增加。 Mn^<2+/3+>氧化还原的过电势以及LiMnPO_4作为活性材料的利用率的增加锂电池的正极。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Carbon Coating on LiMPO4 (M=Fe,Mn) Particles by Hydrothermal Method
水热法在 LiMPO4 (M=Fe,Mn) 颗粒上包覆碳
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:獨古薫
- 通讯作者:獨古薫
High Rate Discharge Capability of Single Particle Electrode of LiCoO2
LiCoO2单颗粒电极的高倍率放电性能
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:K. Dokko; N. Nakata; K. Kanamura
- 通讯作者:K. Kanamura
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DOKKO Kaoru其他文献
Rate Performance of LiCoO2 Half-cells Using Highly Concentrated Lithium Bis(fluorosulfonyl)amide Electrolytes and Their Relevance to Transport Properties
使用高浓度双(氟磺酰基)酰胺锂电解质的LiCoO<sub>2</sub>半电池的倍率性能及其与传输性能的相关性
- DOI:
10.5796/electrochemistry.21-00052 - 发表时间:
2021 - 期刊:
- 影响因子:2.5
- 作者:
KONDOU Shinji;DOKKO Kaoru;WATANABE Masayoshi;UENO Kazuhide - 通讯作者:
UENO Kazuhide
Rate Performance of LiCoO2 Half-cells Using Highly Concentrated Lithium Bis(fluorosulfonyl)amide Electrolytes and Their Relevance to Transport Properties
使用高浓度双(氟磺酰基)酰胺锂电解质的LiCoO<sub>2</sub>半电池的倍率性能及其与传输性能的相关性
- DOI:
10.5796/electrochemistry.21-00052 - 发表时间:
2021 - 期刊:
- 影响因子:2.5
- 作者:
KONDOU Shinji;DOKKO Kaoru;WATANABE Masayoshi;UENO Kazuhide - 通讯作者:
UENO Kazuhide
Molten Li Salt Solvate-Silica Nanoparticle Composite Electrolytes with Tailored Rheological Properties
具有定制流变特性的熔融锂盐溶剂化物-二氧化硅纳米颗粒复合电解质
- DOI:
10.5796/electrochemistry.20-00016 - 发表时间:
2020 - 期刊:
- 影响因子:2.5
- 作者:
MARIUM Mayeesha;UENO Kazuhide;DOKKO Kaoru;WATANABE Masayoshi - 通讯作者:
WATANABE Masayoshi
Study on Fundamental Properties of Solvate Electrolytes and Their Application in Batteries
溶剂化电解质的基本性质及其在电池中的应用研究
- DOI:
10.5796/electrochemistry.22-00072 - 发表时间:
2022 - 期刊:
- 影响因子:2.5
- 作者:
DOKKO Kaoru - 通讯作者:
DOKKO Kaoru
Phase Behaviors and Ion Transport Properties of LiN(SO2CF3)2/Sulfone Binary Mixtures
LiN(SO<sub>2</sub>CF<sub>3</sub>)<sub>2</sub>/砜二元混合物的相行为和离子传输性质
- DOI:
10.5796/electrochemistry.23-00019 - 发表时间:
2023 - 期刊:
- 影响因子:2.5
- 作者:
TATARA Ryoichi;UGATA Yosuke;MIYAZAKI Shuhei;KISHIDA Natsuki;SASAGAWA Shohei;UENO Kazuhide;TSUZUKI Seiji;WATANABE Masayoshi;DOKKO Kaoru - 通讯作者:
DOKKO Kaoru
DOKKO Kaoru的其他文献
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{{ truncateString('DOKKO Kaoru', 18)}}的其他基金
Charge Transfer Reaction at the Electrode/Solvate Ionic Liquid Interface
电极/溶剂化离子液体界面的电荷转移反应
- 批准号:
15H03874 - 财政年份:2015
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Preparation of Nanoparticles of Electrochemically Reactive Transition Metal Compounds in Molten Aquacomplexes
熔融水复合物中电化学反应性过渡金属化合物纳米粒子的制备
- 批准号:
23655193 - 财政年份:2011
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
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