SOLID ELECTROLYTIC MATERIAL, AND ALL-SOLID BATTERY

PROBLEM TO BE SOLVED: To realize: a solid electrolytic material which enables the suppression of the reduction in ion conductivity at a room temperature; and an all-solid battery which delivers desired good battery characteristics by use of such a solid electrolytic material.SOLUTION: A solid electr...

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Hauptverfasser:	ITO AKIHIRO, YOSHIOKA MITSURU, ONOUCHI YASUHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CONDUCTORS ELECTRICITY INSULATORS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Zusammenfassung:	PROBLEM TO BE SOLVED: To realize: a solid electrolytic material which enables the suppression of the reduction in ion conductivity at a room temperature; and an all-solid battery which delivers desired good battery characteristics by use of such a solid electrolytic material.SOLUTION: A solid electrolytic material comprises a primary component having a Nasicon type crystal structure and expressed by the following general formula: LiZr(PO)where x is 0.1-0.4, preferably 0.1-0.2. An all-solid battery comprises: a solid electrolytic layer 4; a positive electrode layer 5 on one principal face of the solid electrolytic layer 4; and a negative electrode layer 6 on the other principal face of the solid electrolytic layer 4. The solid electrolytic layer 4 includes the solid electrolytic material as a primary component.SELECTED DRAWING: Figure 1 【課題】室温でのイオン伝導性の低下を抑制できる固体電解質材料、及びこの固体電解質材料を使用することにより所望の良好な電池特性が得られる全固体電池を実現する。【解決手段】固体電解質材料は、主成分が、一般式Ｌｉ1+4xＺｒ2-x（ＰＯ４）３で表されるナシコン型結晶構造を有している。ここで、ｘは０．１〜０．４、好ましくは０．１〜０．２である。全固体電池は、固体電解質層４の一方の主面に正極層５を有し、前記固体電解質層４の他方の主面に負極層６を有し、前記固体電解質層４が、上記固体電解質材料を主成分としている。【選択図】図１