ALL SOLID BATTERIES USING IONIC CONDUCTIVE THIN FILM

所有固体电池均采用离子导电薄膜

• 批准号: 07555270
• 负责人: YAMAMOTO Osamu
• 金额: $ 6.46万
• 依托单位: MIE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555270/
• 关键词: SOLID ELECTROLYTE BATTERY; LITHIUM ION CONDUCTOR; SOLID STATE LITHIUM SECONDARY BATTERY; LITHIUM CALCOGENIDE GLASS; TEPE-CASTING METHOD; THIN FILM BATTERY; 全固体リチウム電池; リチウム二次電池; 硫化物ガラス; 固体電解質

Oxysulfide glass, Li_3PO_4-Li_2S-SiS_2, shows a high ionic conductivity of 1.4x10^<-3>S/cm at ambient temperature and a wide electrochemical window. It is chemically and electrochemically stable against lithium metal. Li_xCoO_2 and In-Li_x, were found to be good candidates for the electrode materials in solid state batteries with the glass for their electrode reaction with high reversibility. The operation voltage was 3.3V,which was a high voltage for a solid state battery. The solid state battery constructed with the materials reveals excellent cycling property, high rate capability up to almost 1mA/cm^2, and extremely small residual current. The preparation of the thin film was tried using the tape-casting method. The composite with the lithium ion conductive polymer such as PEO-lithium salts brought the thin film electrolyte and electrode with around ten mum thick and showed high lithium ionic conductivity of 10^<-4>S/cm at room temperature. These results make us expect the possibility of high safety lithium secondary battery.

硫氧化物玻璃Li_3PO_4-Li_2S-SiS_2在室温下具有1.4 × 10 ~（-4<-3>）S/cm的高电导率和较宽的电化学窗口。它对锂金属具有化学和电化学稳定性。Li_xCoO_2和In-Li_x由于其电极反应具有高可逆性，被认为是固体玻璃电池电极材料的理想候选者。工作电压为3.3V，这对于固态电池来说是一个高电压。用该材料制成的固体电池具有良好的循环性能，高倍率性能可达1 mA/cm ^2，剩余电流极小。采用流延法制备薄膜。具有锂离子导电聚合物如PEO-锂盐的复合物产生约10 μ m厚的薄膜电解质和电极，并在室温下显示出10 μ S/cm的高锂离子电导率<-4>。这些结果让我们期待高安全性锂二次电池的可能性。

项目成果

K.Iwamoto, M.Fujino, K.Takada, and S.Kondo: "Performance of Coin Solid State Batery with Inorganic Solid Electrolyte" Denki Kagaku. 65. 753-757 (1997)

K.Iwamoto、M.Fujino、K.Takada 和 S.Kondo：“无机固体电解质硬币固态电池的性能”Denki Kagaku。

O.Yamamoto 他: "Rechargable Carbon Anode" J.Power Sources. 54. 72-75 (1995)

O. Yamamoto 等人：“可充电碳阳极”J. Power Sources 54. 72-75 (1995)

K.Takada: "Solid State Lithium Battery with Oxysulfide Glass" Solid State Ionics. 86-88. 877-882 (1996)

K.Takada：“采用硫氧化物玻璃的固态锂电池”固态离子学。

岩本 和也 他: "Li_3PO_4-Li_2S-SiS_2系固体電解質を用いた全固体リチウム二次電池" 電気化学. 63. 25-29 (1995)

Kazuya Iwamoto 等：“使用 Li_3PO_4-Li_2S-SiS_2 固体电解质的全固态锂二次电池”电化学 63. 25-29 (1995)。

岩本和也 他: "無機固体電解質を用いたコイン型全固体リチウム二次電池の作用特性" 電気化学. 65. 753-757 (1997)

Kazuya Iwamoto 等人：“使用无机固体电解质的硬币型全固态锂二次电池的操作特性”电化学 65. 753-757 (1997)。