PRODUCTION METHOD OF LITHIUM ION CONDUCTOR, LITHIUM ION CONDUCTOR, AND ELECTRICITY STORAGE DEVICE

• Main Authors: MIZUTANI HIDETOSHI, IGA YUTA, TAKEUCHI YUKI, SHISHIHARA DAISUKE, HIKOSAKA HIDEAKI, YAMAMOTO HIROSHI, NAKAGAWA KOKI
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; 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

To suppress conductivity degradation of a lithium ion caused by wet processing.SOLUTION: A production method of a lithium ion conductor includes a step for subjecting raw material powder containing at least one of hydride-based lithium ion conductor powder and oxide-based lithium ion conductor powder to wet processing using a fluorine-based liquid to prepare lithium ion conductor powder having a smaller grain diameter than the raw material powder.SELECTED DRAWING: Figure 2 【課題】湿式処理に伴うリチウムイオン伝導性の低下を抑制する。【解決手段】リチウムイオン伝導体の製造方法は、水素化物系リチウムイオン伝導体の粉末と酸化物系リチウムイオン伝導体の粉末との少なくとも一方を含む原料粉末に対して、フッ素系液体を用いた湿式処理を行うことにより、原料粉末より粒径が小さい粉末状のリチウムイオン伝導体である粉末リチウムイオン伝導体を作製する工程を備える。【選択図】図２