Li-Ion Conductive Oxide Ceramic Material Including Garnet-Type or Similar Crystal Structure

Patent metadata

Field	Value
Publication number	US-2016268630-A1
Application number	US-201615063989-A
Country	US
Kind code	A1
Filing date	Mar 8, 2016
Priority date	Mar 10, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure according to an aspect of the present disclosure contains Li, La, Zr, and 0, the material further containing one or more elements selected from the group consisting of rare-earth elements, A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure according to the other aspects of the present disclosure is represented by the following composition formula (I) Li 7+x La 3 Zr 2-x A x O 12 where A is one or more elements selected from the group consisting of rare-earth elements, and x is a number such that 0<x≦0.5.

First claim

What is claimed is:

1 . A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure comprising Li, La, Zr, and O,
the material further containing one or more elements selected from the group consisting of rare-earth elements.

2 . A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure represented by the following composition formula (I):
Li 7+x La 3 Zr 2-x A x O 12   (1)

where A is one or more elements selected from the group consisting of rare-earth elements, and x is a number such that 0<x≦0.5.

3 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 2 , wherein
A in the composition formula (1) is one or more elements selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu.

4 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 2 , wherein
A in the composition formula (1) is one or more elements selected from the group consisting of Gd, Ho, and Yb, where x is a number such that 0<x≦0.30.

5 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 3 , wherein
A in the composition formula (1) is one or more elements selected from the group consisting of Gd, Ho, and Yb, where x is a number such that 0<x≦0.30.

6 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 1 , further comprising Al, wherein
the content of Al is not lower than 0.3 wt % and not higher than 2.0 wt % with respect to a total weight of the Li-ion conductive oxide ceramic material.

7 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 2 ., further comprising Al, wherein
the content of Al is not lower than 0.3 wt % and not higher than 2.0 wt % with respect to a total weight of the Li-ion conductive oxide ceramic material.

8 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 3 , further comprising Al, wherein
the content of Al is not lower than 0.3 wt % and not higher than 2.0 wt % with respect to a total weight of the Li-ion conductive oxide ceramic material.

9 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 4 , further comprising Al, wherein
the content of Al is not lower than 0.3 wt % and not higher than 2.0 wt % with respect to a total weight of the Li-ion conductive oxide ceramic material.

10 . The Li-ion conductive oxide ceramic material including the garnet-type or similar crystal structure according to claim 5 , further comprising Al, wherein
the content of Al is not lower than 0.3 wt % and not higher than 2.0 wt % with respect to a total weight of the Li-ion conductive oxide ceramic material.

11 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 1 .

12 . An ail-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 2 .

13 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 3 .

14 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 4 .

15 . An all-solid lithium ion secondary battery comprising the conductive oxide ceramic material according to claim 5 .

16 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 6 .

17 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 7 .

18 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 8 .

19 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 9 .

20 . An all-solid lithium ion secondary battery comprising the Li-ion conductive oxide ceramic material according to claim 10 .

Assignees

• Tdk Corp

Inventors

• Tsukada Takeo
• Tanaka Teiichi
• KAKUTA Hirofumi
• Masuko Taisuke

Classifications

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M2300/0077

  based on zirconium oxide · CPC title

• H01M10/0562 Primary

  Solid materials · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• H01M10/0585

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title