Preparation of all-solid-state thin film secondary batteries by pulsed laser deposition method

脉冲激光沉积法制备全固态薄膜二次电池

• 批准号: 14350157
• 负责人: KAWAMURA Junichi
• 金额: $ 9.47万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350157/
• 关键词: thin film battery; secondary battery; lithium battery; laser abration; solid state ionics; superionic conductor; ionic conductor glass; lithium cobalt oxide; 固体電解質

Recent developments of the electronic devices strongly demand very small energy sources with high power density. A thin-film lithium-ion battery is one of the candidates for satisfying these demands. In this project we have tried and succeeded in preparation of all-solid-state thin film batteries by using a pulsed laser deposition (PLD) method.First, we have investigated the condition for preparing amorphous lithium ion conductor films by thermal evaparation and PLD method. A good quality amorphous thin film was obtained for the Li4SiO4-Li3VO4 by PLD, which can be used as the solid electrolyte for batteries. The film was characterized through X-ray, FT -IR, Raman, a field emission scanning electron microscope (FE-SEM), an atomic force microscope (AFM) and an inducting coupled plasma (ICP). The ionic conductivity of the film was 10-7S/cm at room temperature.Second, we have prepared cathode and anode thin films also by PLD method. Then, we found the good preparation condition for LiCoO2 as a cathode and SnO as an anode.Thirdly, based on these results, we have demonstrated to prepare some all-solid-stete thin film secondary lithium ion batteries only by PLD method. The battery consisted of LiCoO2/LVSO/SnO exhibited a good performance of of an open circuit voltage of about 2.7 V, and a good reversibility on charge-discharge cyclings over 100 cycles between 0 and 3.3 V. The thin-film battery can be handled in open atmosphere before charging.

电子设备的最新发展强烈需要具有高功率密度的非常小的能源。薄膜锂离子电池是满足这些需求的候选者之一。本项目尝试并成功采用脉冲激光沉积（PLD）方法制备全固态薄膜电池。首先，我们研究了热蒸发和PLD方法制备非晶锂离子导体薄膜的条件。采用PLD方法制备了Li4SiO4-Li3VO4薄膜，获得了优质的非晶薄膜，可用作电池的固体电解质。通过X射线、FT-IR、拉曼、场发射扫描电子显微镜(FE-SEM)、原子力显微镜(AFM)和感应耦合等离子体(ICP)对薄膜进行了表征。室温下薄膜的离子电导率为10-7S/cm。 其次，我们同样采用PLD方法制备了阴极和阳极薄膜。然后，我们找到了LiCoO2作为正极、SnO作为负极的良好制备条件。第三，基于这些结果，我们证明了仅通过PLD方法制备一些全固态薄膜二次锂离子电池。由LiCoO2/LVSO/SnO组成的电池表现出良好的性能，开路电压约为2.7 V，并且在0至3.3 V之间的充放电循环超过100次循环时具有良好的可逆性。该薄膜电池可以在充电前在开放大气中处理。

项目成果

Thin-film lithium-ion battery with amorphous solid electrolyte fabricated by pulsed laser deposition

• DOI: 10.1016/j.elecom.2004.02.010
• 发表时间: 2004-04-01
• 期刊: ELECTROCHEMISTRY COMMUNICATIONS
• 影响因子: 5.4
• 作者: Kuwata, N;Kawamura, J;Sata, N
• 通讯作者: Sata, N

Solid State Ionics for Batteries (ed.T.Minami)

用于电池的固态离子学（ed.T.Minami）

• 发表时间: 2005
• 作者: T.Otsuji;et al.;J.Kawamura
• 通讯作者: J.Kawamura

酸化物エピタキシャル薄膜およびその作製方法

氧化物外延薄膜及其制备方法

• 发表时间: 2003

N.Kuwata他(4名): "Thin-film lithium-ion battery with amorphous solid electrolyte fabricated by pulsed laser deposition"Electrochem.Commun.. 6. 417-421 (2004)

N. Kuwata 等人（4 人）：“通过脉冲激光沉积制造的非晶固体电解质薄膜锂离子电池”Electrochem.Commun.. 6. 417-421 (2004)

H.Waki 他3名: "Optical and electrical properties of Tl-S glasses"J. Non-Cryst. Solids. 297. 26-30 (2002)

H. Waki 等 3 人：“Tl-S 玻璃的光学和电学特性”J. Non-Cryst。297. 26-30 (2002)