Development of All-solid-state Lithium Batteries with Energy Density

高能量密度全固态锂电池的开发

• 批准号: 15560591
• 负责人: MACHIDA Nobuya
• 金额: $ 1.98万
• 依托单位: Konan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560591/
• 关键词: Lithium Battery; Solid State Battery; Solid Electrolyte; Sulfur; Silicon; Germanium; Lithium Alloy; Electrode Materials; 全固体電池; 負極材料; 正極材料; イオン伝導体; 硫化銅

Development of all-solid-state lithium batteries is strongly desired to replace commercially available lithium-ion batteries using conventional electrolyte solutions, because the all-solid-state batteries have some advantages, such as high reliability and high safety performance. For the development of the all-solid-state lithium batteries, non-flammable lithium-ion conducting solid electrolytes and also positive and negative electrode materials suitable for the all-solid-state batteries are indispensable materials. Phosphorus-sulfide based lithium-ion conducting materials have been prepared by a high-energy ball-milling process. The solid electrolytes in the system Li_2S-P_2S_3-P_2S_5 show high lithium-ion conductivity over 6 x 10^<-4> Scm^<-1> at room temperature and have been prominent electrochemical stability. New Li-Si alloy has been also prepared by the high-energy ball-milling process and investigated as negative electrode materials for the all-solid-state batteries. The new alloy shows large specific capacity about 300 mAhg^<-1> and good charge-discharge reversibility.

由于全固态锂电池具有高可靠性和高安全性能等优点，因此迫切需要开发全固态锂电池来替代使用常规电解质溶液的市售锂离子电池。对于全固态锂电池的发展，不易燃的锂离子导电固体电解质以及适用于全固态电池的正极和负极材料是不可缺少的材料。采用高能球磨法制备了硫化磷基锂离子导电材料。Li_2S-P_2S_3-P_2S_5体系中的固体电解质在室温下表现出超过6 × 10 ~（-3）Scm ~ 2的高锂离子电导率<-4><-1>，并具有显著的电化学稳定性。采用高能球磨法制备了新型锂硅合金，并将其作为全固态电池的负极材料进行了研究。新合金显示出约300 mAhg^的大比容量<-1>和良好的充放电可逆性。

项目成果

A Mechano-Chemical Synthesis of Silver-ion Conductive Materials in the System AgI-Ag_2WO_4, -Part 1, Formation of Amorphous Materials and Their Ion Conducting Properites-

AgI-Ag_2WO_4 体系中银离子导电材料的机械化学合成，-第 1 部分，非晶材料的形成及其离子导电性能-

• 发表时间: 2004
• 期刊: J.Jpn.Soc.Powder and Powder Metallurgy 51
• 作者: N.Machida;N.Tomei;T.Shigematsu
• 通讯作者: T.Shigematsu

Preparation of Li4.4GexSi1-x alloys by mechanical milling process and their properties as anode materials in all-solid-state lithium batteries

• DOI: 10.1016/j.ssi.2004.08.022
• 发表时间: 2004-11-30
• 期刊: SOLID STATE IONICS
• 影响因子: 3.2
• 作者: Hashimoto, Y;Machida, N;Shigematsu, T
• 通讯作者: Shigematsu, T

Preparation of Amorphous 75Li_2S- xP_2S_3-(25-x)P_2S_5 (mol%) Solid Electrolytes by a High-Energy Ball-Milling Process and Their Application for an All-Solid-State Lithium Battery

制备%20of%20无定形%2075Li_2S-%20xP_2S_3-(25-x)P_2S_5%20(mol%)%20固体%20电解质%20by%20a%20高能%20球磨%20工艺%20and%20其%20应用%20for%

• 发表时间: 2005
• 期刊: Solid State Ionics 176
• 作者: N.Machida;H.Yamamoto;S.Asano;T.Shigematsu
• 通讯作者: T.Shigematsu

All-solid-state Lithium Battery with Sulfur as Positive Electrode

以硫为正极的全固态锂电池

• 发表时间: 2004
• 期刊: Chem.Lett. 33
• 作者: N.Machida;H.Yamamoto;S.Asano;T.Shigematsu;N.Machida;N.Machida;N.Machida
• 通讯作者: N.Machida

Huifen Peng: "High Ag_2S-containing amorphous materials in the system Ag_2S-SiS_2 and their electrical properties"Electrochimica Acta. 48. 1893-1897 (2003)

彭惠芬：“Ag_2S-SiS_2体系中高Ag_2S非晶材料及其电学性能”《电化学学报》。