LITHIUM ION CONDUCTOR

• Main Authors: KITAJIMA SHINTARO, FUJII YUICHI, MATSUOKA NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 11.01.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOUNDS THEREOF; CONDUCTORS; ELECTRICITY; INORGANIC CHEMISTRY; INSULATORS; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

PROBLEM TO BE SOLVED: To provide a lithium ion conductor enables the stable conduction at a low temperature.SOLUTION: A lithium ion-conducting film 120 has a structure in which crystalline oxide-based inorganic solid electrolyte particles 110 having lithium ion conductivity are arrayed in one layer, each taking an independent particle form, of which the activation energy is 0.10 eV and higher and lower than 0.30 eV during lithium ion conduction. It is preferred that in the lithium ion-conducting film 120, the crystalline oxide-based inorganic solid electrolyte particles 110 are 60-150 nm in crystallite size.SELECTED DRAWING: Figure 1 【課題】低温において安定的に伝導可能なリチウムイオン伝導体の提供。【解決手段】リチウムイオン伝導性を有する結晶性酸化物系無機固体電解質粒子１１０が単一粒子状態で一層に配列した構造を有し、かつリチウムイオン伝導における活性化エネルギーが０．１０ｅＶ以上０．３０ｅＶ未満のリチウムイオン伝導膜１２０。好ましくは、結晶性酸化物系無機固体電解質粒子１１０の結晶子サイズが６０〜１５０ｎｍであるリチウムイオン伝導膜１２０。【選択図】図１