DEVELOPMENTAL RESEARCH FOR INTERCALATION ELECTRODE MATERIALS FOR HIGH ENERGY DENSITY BATTERIES

高能量密度电池插层电极材料的开发研究

基本信息

  • 批准号:
    06555262
  • 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 Developmental Scientific Research (B)
  • 财政年份:
    1994
  • 资助国家:
    日本
  • 起止时间:
    1994 至 1995
  • 项目状态:
    已结题

项目摘要

The results of our research projects are summarized as follows1. Layred-rocksalt oxides LiMO_2 Oxides LiMO_2 with M=Co and/or Ni are promising cathode materials. However, the ability to extract and reinsert Li depends critically on the stoichiometry and ordering of the Li and M atoms into alternate planes of the structure. The withdrawal of Li creates Li_<1-X>MO_2 compositions metastable relative to atomic displacements, and displacement of M atoms to the Li layrs on Li extraction lowers sharply the Li+-ion mobility in the Li layrs. We focused on the influence of synthesis and the deintercalation process on the degree of cation stoichiometry, order, and stability of the ordered phase first for the system Li_<1-y>NiO_2. We clarified (a) the phase relationships in the Li-Ni-O ternary system in order to optimize the performance of the Li_<1-X>NiO_2 cathode system, (b) the synthetic conditions that yield precise control of stoichiometry and cation order in the starting lithiated compounds, (c) the decomposition or disordering processes operative at higher temperatures versus the Li concentration, (d) the relationship between stoichiometry, order, and physical properties, (e) the lattice changes induced by deintercalation, and (f) the influence of cation disorder on the deintercalation process.2. New oxide hosts. We attempted to synthesize new oxide hosts by unconventional routes such as ion exchange, high pressure, and high oxygen pressure. LiFeO_2 does not crystallize in the layred-rocksalt structure, but NaFeO_2 does ; it was possible to prepare metastable LiFeO_2 with the layred-rocksalt structure by ion exchange of Li+ for Na+ in molten LiCl/KCl. Furthermore, we synthesized new cathode, LiFeO_2 with the zig-zag layred structure. We clarifed the structure and electrochemical properties of these LiFeO_2 cathodes with the layred structure and zig-zag layred structures.
我们的研究项目的结果总结如下1.层状岩盐氧化物LiMO_2 M=Co和/或Ni的LiMO_2氧化物是很有前途的正极材料。然而,提取和重新插入Li的能力关键取决于Li和M原子进入结构的交替平面的化学计量和排序。Li的退出使Li_<1-X>MO_2组分相对于原子位移产生亚稳态,而M原子向Li层的位移使Li层中Li ~+离子的迁移率急剧降低。本文首先研究了Li_ NiO_2体系的合成和脱嵌过程对阳离子化学计量比、有序度和有序相稳定性的影响<1-y>。我们阐明了(a)Li-Ni-O三元体系中的相关系,以优化Li_<1-X>NiO_2阴极系统的性能,(B)在起始锂化化合物中产生精确控制化学计量和阳离子顺序的合成条件,(c)在较高温度下操作的分解或无序过程与Li浓度,(d)化学计量、顺序和物理性质之间的关系,(e)脱嵌引起的晶格变化,以及(f)阳离子无序对脱嵌过程的影响。新的氧化物宿主。我们尝试通过非常规途径如离子交换、高压和高氧压来合成新的氧化物主体。LiFeO_2不具有层状岩盐结构,而NaFeO_2具有层状岩盐结构,在熔融LiCl/KCl中,通过Li ~+与Na ~+的离子交换,可以制备具有层状岩盐结构的亚稳LiFeO_2。在此基础上,我们合成了具有锯齿状层状结构的新型正极材料LiFeO_2。对层状结构和锯齿状层状结构的LiFeO_2正极材料的结构和电化学性能进行了研究。

项目成果

期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
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R.KANNO,A.HIRANO,Y.KAWAMOTO,K.OIKAWA,T.KAMIYAMA,AND F.IZUMI: "Neutron Diffraction Study of the Layred Li_<0.5-X>Ni_<1+X>O_2" Solid State Ionics. (in press.).
R.KANNO、A.HIRANO、Y.KAWAMOTO、K.OIKAWA、T.KAMIYAMA 和 F.IZUMI:“层状 Li_<0.5-X>Ni_<1 X>O_2 的中子衍射研究”固态离子。
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A.Hirano,R.Kanno: "Relationship between Non-Stoichiometny and Physical Propeities of LiNiO_2" Solid State Ionics.
A.Hirano,R.Kanno:“LiNiO_2 的非化学计量与物理性质之间的关系”固态离子学。
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R.Kanno: "Phase Relationship and Cittium De-intercalation in Cithinm Niclcel Oxides" J.Solid State Chem.110. 216-225 (1994)
R.Kanno:“Cithinm Niclel 氧化物中的相关系和氚脱嵌”J.Solid State Chem.110。
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R Kanno 他: "Sahun Deiwterculction FewSo dinn Oxide" Mcut.Res Bull. 29. 659-666 (1994)
R Kanno 等人:“Sahun Deiwterculction FewSo dinn Oxide”Mcut.Res Bull。29. 659-666 (1994)
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H.OHTA,Y.YAMAMOTO,M.SUMIKAWA,M.MOTOKAWA,A.HIRANO,and R.KANNO: "ESR Measurements of LiNiO_2 in a Pulsed Magnetic Field" Physica B. 211. 217-219 (1995)
H.OHTA、Y.YAMAMOTO、M.SUMIKAWA、M.MOTOKAWA、A.HIRANO 和 R.KANNO:“脉冲磁场中 LiNiO_2 的 ESR 测量”Physica B. 211. 217-219 (1995)
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KANNO Ryoji其他文献

KANNO Ryoji的其他文献

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{{ truncateString('KANNO Ryoji', 18)}}的其他基金

Novel energy device using hydride ion conductors
使用氢负离子导体的新型能源装置
  • 批准号:
    25620180
  • 财政年份:
    2013
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Exploration of hydride conductor
氢化物导体的探索
  • 批准号:
    23655191
  • 财政年份:
    2011
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Development of all solid-state batteries for new generation energy devices
新一代能源设备用全固态电池的开发
  • 批准号:
    22245035
  • 财政年份:
    2010
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Basic research on development of new ionics devices
新型离子器件开发的基础研究
  • 批准号:
    18205024
  • 财政年份:
    2006
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Basic study for the fabrication of all solid lithium battery
全固态锂电池制备基础研究
  • 批准号:
    15350120
  • 财政年份:
    2003
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Structure and physical property of Lithium intercalation materials
嵌锂材料的结构与物理性能
  • 批准号:
    12793004
  • 财政年份:
    2000
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for University and Society Collaboration
RESEARCH ON CERAMICS BATTERIES
陶瓷电池的研究
  • 批准号:
    10555311
  • 财政年份:
    1998
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
MATERIALS DESIGN OF CRYSTALLINE LITHIUM IONIC CONDUCTORS WITH FRAMEWORK STRUCTURE
框架结构晶体锂离子导体材料设计
  • 批准号:
    09650906
  • 财政年份:
    1997
  • 资助金额:
    $ 2.5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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“CatContiCryst” - 使用振荡挡板反应器/结晶器技术连续制造锂离子电池正极材料
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