| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject new multiple oxide of specified composition formula, hopeful of applications as a catalyst, adsorbent, dielectric or magnetic material as well as a battery material. SOLUTION: This Li-Mn multiple oxide is expressed by the composition formula Lix MnO4 ((x) satisfies the relationship: 5<=(x)<=7). When (x) is 6, the multiple oxide is the most stable and also easy to synthesize. This multiple oxide is obtained by mixing at least one kind of Li stock selected from metallic Li, Li oxide and Li sulfide with at least one kind of Mn stock selected from MnO, Mn2 O3 and α-type MnO2 at the molar ratio Li/Mn of (5:1) to (7:1) followed by baking in an atmosphere such as inert gas or hydrogen gas. This multiple oxide is of superstructural reverse fluorite type, and the Li sites in the crystal structure are linked to one another in a three-dimensional way, the Li atoms in the crystal are highly mobile and thus extremely rapid in diffusion, leading to anode-active substances and non-aqueous secondary batteries. |
