Development of Novel Vanadium Oxide Compound for Lithium Ion Secondary Battery
锂离子二次电池用新型钒氧化物的研制
基本信息
- 批准号:13480137
- 负责人:
- 金额:$ 9.66万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Vanadium oxides have been attracting attentions as a candidate for a cathode material of secondary lithium ion batteries because of non-toxicity, availability, low cost and safety. CoV_3O_8 was synthesized by solid-state reaction and the crystal structure was analyzed by X-ray powder diffraction and the Rietveld method. CoV_3O_8 has tunnel-like space along c-axis in the crystal structure. During the 1st discharge or lithium insertion, three potential plateaus were observed at around 2.3, 2.05 and 1.9 V. This indicates that lithium was inserted into CoV_3O_8 by three-step reaction. By the 1st discharge, lithium was inserted to x=2.6 in Li_xCoV_3O_8. In contrast, during the 1st charge or lithium deinsertion, only one plateau was observed. This means that the lithium deinsertion proceeded in one-step reaction. By the 1st charge, lithium was deinserted to x=0.6. In the 2nd discharge-charge cycle or later, both lithium insert ion and deinsertion proceeded in one-step reaction as in the 1st lithium deinsertion, and quantity of inserted lithium was almost equal to that of deinserted lithium. It was indicated that lithium was inserted into and deinserted from the sample reversibly. This sample exhibited excellent discharge-charge cycle performance. This cobalt vanadium oxide is promising for novel electrode material of lithium ion rechargeable battery.
钒氧化物作为二次锂离子电池的正极材料,因其无毒、易得、价廉、安全等优点而备受关注。采用固相反应法合成了CoV_3O_8,并用X射线粉末衍射和Rietveld方法分析了其晶体结构。CoV_3O_8的晶体结构中沿c轴沿着具有隧道状空间。在第一次放电或嵌锂过程中,在2.3、2.05和1.9 V附近观察到三个电位平台。这表明锂通过三步反应嵌入CoV_3O_8中。通过第一次放电,锂嵌入到Li_xCoV_3O_8中x=2.6。相反,在第一次充电或锂脱嵌期间,仅观察到一个平台。这意味着锂的脱嵌在一步反应中进行。通过第一次充电,锂脱嵌至x=0.6。在第2次或以后的充放电循环中,与第1次锂脱嵌一样,锂嵌入离子和脱嵌都在一步反应中进行,并且嵌入的锂的量几乎等于脱嵌的锂的量。结果表明,锂离子在样品中的嵌入和脱嵌是可逆的。该样品表现出优异的充放电循环性能。该钴钒氧化物有望成为新型锂离子二次电池电极材料。
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)
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YAO Takeshi其他文献
YAO Takeshi的其他文献
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{{ truncateString('YAO Takeshi', 18)}}的其他基金
Relaxation Analysis of Electrode Materials for Secondary Lithium Ion Battery
二次锂离子电池电极材料的弛豫分析
- 批准号:
26289376 - 财政年份:2014
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Relaxation Analysis of Electrode Material
电极材料的弛豫分析
- 批准号:
24656581 - 财政年份:2012
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of high power density electrode system on the basis ofconstruction of ionic conduction channel of hierarchic structure
基于多级结构离子传导通道构建的高功率密度电极系统的研制
- 批准号:
21360479 - 财政年份:2009
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Construction of ion conduction channel of hierarchic structure and its application to high power battery materials
多级结构离子传导通道的构建及其在高动力电池材料中的应用
- 批准号:
19360438 - 财政年份:2007
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Hierarchical tunnel design for rapid transport of ion in solid state materials
固态材料中离子快速传输的分层隧道设计
- 批准号:
17360464 - 财政年份:2005
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
STRUCTURAL DESIGN OF HIGHLY ORIENTED LAYERED-MATERIAL FOR LITHIUM ION SECONDARY BATTERIES
锂离子二次电池高取向层状材料的结构设计
- 批准号:
15360510 - 财政年份:2003
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Synthesis of Solid Oxide Fuel Cell with Graded Structure from Aqueous Solution
水溶液合成梯度结构固体氧化物燃料电池
- 批准号:
11480118 - 财政年份:1999
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Development of Solid Oxide Fuel Cell by Using Synthesis from Aqueous Solutions
利用水溶液合成技术开发固体氧化物燃料电池
- 批准号:
09355020 - 财政年份:1997
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Analysis of Electrochemical Lithium Topochemical Reactions into Superstructure Spinel Oxides
超结构尖晶石氧化物的电化学锂拓扑化学反应分析
- 批准号:
08455396 - 财政年份:1996
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Valence and Coordination State Analysis for Transition Metal Ions Mixed Conductive Perovskite Oxides
过渡金属离子混合导电钙钛矿氧化物的价态和配位态分析
- 批准号:
06650779 - 财政年份:1994
- 资助金额:
$ 9.66万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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