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Method for producing garnet-type compound, garnet-type compound, and all-solid lithium secondary battery containing this garnet-type compound
Method for producing garnet-type compound, garnet-type compound, and all-solid lithium secondary battery containing this garnet-type compound
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机译:石榴石型化合物的制造方法,石榴石型化合物以及含有该石榴石型化合物的全固体锂二次电池
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摘要
A garnet-type compound containing zirconium and lithium can be obtained in the form of fine particles, and a production method excellent in productivity is provided. A method for producing a garnet-type compound comprising Zr, Li and an element M1 (M1 is at least one element selected from the group consisting of La, Sc, Y and Ce) as constituent elements, comprising: (1) zirconium carbonate The first raw material containing a complex and having a pH of 7.0 or more and 9.5 or less and a second raw material containing a compound containing the element M1 as a constituent element are mixed to obtain a precipitate. Step (2) After preparing a mixture in which the precipitate and a third raw material containing a compound containing Li as a constituent element are mixed, the mixture is fired at a temperature of less than 1000 ° C. to obtain a fired product. It has two steps. The first raw material is prepared by mixing a compound containing at least a carbonic acid species and a compound containing a zirconium species in a predetermined molar ratio.
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