Charge exchange reaction measurement on the surface of lithium battery cathode epitaxial films using fast spectroscopy.

利用快速光谱法测量锂电池正极外延膜表面的电荷交换反应。

• 批准号: 19550194
• 负责人: SONOYAMA Noriyuki
• 金额: $ 3.24万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19550194/
• 关键词: 電気化学; リチウム電池; 界面; エピタキシャル薄膜; 吸収スペクトル; LiMn_2O_4; LiFePO_4

Epitaxial thin films of LiMn_2O_4 were synthesized on Al_2O_3(001), MgO(111) and SrTiO_3 : Nb(111) substrates. The (111) plane of LiMn_2O_4 was obtained on the surface of the all substrates. The discharge carves of these films showed single plateau and the voltage of the film on Al_2O_3 (001) substrate was higher than that of the film on conducting STO substrate. These results demonstrate that (i) the discharge voltage depends on the substrate owing to strong interaction between the epitaxial films and the substrates, (ii) the phase transition of LiMn_2O_4 is depressed by the chemical bond between the films and the substrates.The absorption spectrum for LiMn_2O_4 epitaxial film was hardly changed during charge-discharge cycles

在Al_2O_3(001)、MgO(111)和SrTiO_3：Nb(111)衬底上制备了LiMn2O4外延薄膜。在所有衬底表面均获得了LiMn2O4(111)晶面。这些薄膜的放电曲线呈单一平台，在Al_2O_3(001)衬底上的薄膜电压高于在导电STO衬底上的薄膜。这些结果表明：(I)由于外延膜与衬底之间的强相互作用，LiMn2O4的放电电压依赖于衬底；(Ii)由于薄膜与衬底之间的化学键，LiMn2O4的相变被抑制；在充放电循环过程中，LiMn2O4外延膜的吸收光谱几乎没有变化

项目成果

Structural changes in surface and bulk LiNi_<03>Mn_<05>O_2 during electrochemical reaction on epitaxial thin-filmelectrodes characterized by in situ X-ray scattering

原位X射线散射表征外延薄膜电极电化学反应过程中表面和体相LiNi_<03>Mn_<05>O_2的结构变化

• 发表时间: 2010
• 期刊: Phys.Chem.Chem.Phys. 12
• 作者: M. Funahashi;H. Shimura;M. Yoshio and T. Kato;Kazuyuki Sakamoto
• 通讯作者: Kazuyuki Sakamoto

Pulsed Laser Deposition法を用いた様々な基板へのLiMn_2O_4薄膜の合成と電気化学特性

脉冲激光沉积法在各种基底上合成LiMn_2O_4薄膜及其电化学性能

• 发表时间: 2007
• 作者: Hirayama;Masaaki;Quan Zhen;Sonoyama N;Noriyuki Sonoyama;岩瀬康資;岩瀬康資;岩瀬康資;Sonoyama N;Sonoyama N;Noriyuki Sonoyama;当寺ケ盛 健志;平山 雅章;園山 範之
• 通讯作者: 園山 範之

Electrochemical performances for preferred oriented PLD thin-film electrodes of LiNi0.8Co0.2O2, LiFePO4 and LiMn2O4

• DOI: 10.1016/j.ssi.2008.06.015
• 发表时间: 2008-10
• 期刊: Solid State Ionics
• 影响因子: 3.2
• 作者: T. Matsumura;N. Imanishi;A. Hirano;N. Sonoyama;Y. Takeda

All solid-state sheet battery using lithium inorganic solid electrolyte, thio-LISIOON

采用锂无机固体电解质的全固态片状电池，thio-LISIOON

• 发表时间: 2009
• 期刊: J.Power Sources 194
• 作者: Hirayama M;Sonoyama N;Yamada A;Kanno R;Taro Inada
• 通讯作者: Taro Inada

Substrate Dependence of Electrochemical Property of LiMn_2O_4 Thin Films Synthesized by PLD Method

PLD法合成LiMn_2O_4薄膜电化学性能的基底依赖性

• 发表时间: 2009
• 作者: Hirayama;Masaaki;Quan Zhen;Sonoyama N
• 通讯作者: Sonoyama N