Solid electrolyte and method of producing the same
First Claim
1. A solid electrolyte containing x atomic % of lithium, y atomic % of phosphorus, z atomic % of sulfur, and w atomic % of oxygen, whereinsaid x, said y, said z, and said w satisfy the following expressions (1)-(5):
-
20≦
x≦
45
(1)
10≦
y≦
20
(2)
35≦
z≦
60
(3)
1≦
w≦
10
(4)
x+y+z+w=100
(5), andapexes of X-ray diffraction peaks in an X-ray diffraction pattern obtained by an X-ray diffraction method using a Kα
-ray of Cu exist at diffraction angles 2θ
of 16.7°
±
0.25°
, 20.4°
±
0.25°
, 23.8°
±
0.25°
, 25.9°
±
0.25°
, 29.4°
±
0.25°
, 30.4°
±
0.25°
, 31.7°
±
0.25°
, 33.5°
±
0.25°
, 41.5°
±
0.25°
, 43.7°
±
0.25°
, and 51.2°
±
0.25°
, respectively, in said X-ray diffraction pattern, and a half-width of each of said X-ray diffraction peaks is not larger than 0.5°
.
1 Assignment
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Accused Products
Abstract
A solid electrolyte and a method of manufacturing the same are provided. The solid electrolyte contains x atomic % of lithium, y atomic % of phosphorus, z atomic % of sulfur, and w atomic % of oxygen, in which
the x, the y, the z, and the w satisfy the following expressions (1)-(5):
20≦x≦45 (1)
10≦y≦20 (2)
35≦z≦60 (3)
1≦w≦10 (4)
x+y+z+w=100 , and (5)
apexes of X-ray diffraction peaks in an X-ray diffraction pattern obtained by an X-ray diffraction method using a Kα-ray of Cu exist at diffraction angles 2θ of 16.7°±0.25°, 20.4°±0.25°, 23.8°±0.25°, 25.9°, 0.25°, 29.4°±0.25°, 30.4°±0.25°, 31.7°±0.25°, 33.5°±0.25°, 41.5°±0.25°, 43.7°±0.25°, and 51.2°±0.25°, respectively, in the X-ray diffraction pattern, and a half-width of each of the X-ray diffraction peaks is not larger than 0.5°.
20 Citations
6 Claims
-
1. A solid electrolyte containing x atomic % of lithium, y atomic % of phosphorus, z atomic % of sulfur, and w atomic % of oxygen, wherein
said x, said y, said z, and said w satisfy the following expressions (1)-(5): -
20≦
x≦
45
(1)
10≦
y≦
20
(2)
35≦
z≦
60
(3)
1≦
w≦
10
(4)
x+y+z+w=100
(5), andapexes of X-ray diffraction peaks in an X-ray diffraction pattern obtained by an X-ray diffraction method using a Kα
-ray of Cu exist at diffraction angles 2θ
of 16.7°
±
0.25°
, 20.4°
±
0.25°
, 23.8°
±
0.25°
, 25.9°
±
0.25°
, 29.4°
±
0.25°
, 30.4°
±
0.25°
, 31.7°
±
0.25°
, 33.5°
±
0.25°
, 41.5°
±
0.25°
, 43.7°
±
0.25°
, and 51.2°
±
0.25°
, respectively, in said X-ray diffraction pattern, and a half-width of each of said X-ray diffraction peaks is not larger than 0.5°
. - View Dependent Claims (2, 3)
-
-
4. A method of producing a solid electrolyte, comprising:
-
a first step of forming, on a base material, a solid electrolyte precursor containing x atomic % of lithium, y atomic % of phosphorus, z atomic % of sulfur, and w atomic % of oxygen by a vapor deposition method, said x, said y, said z, and said w satisfying the following expressions (1)-(5);
20≦
x≦
45
(1)
10≦
y≦
20
(2)
35≦
z≦
60
(3)
1≦
w≦
10
(4)
x+y+z+w=100
(5); anda second step of forming said solid electrolyte precursor into the solid electrolyte by heating said solid electrolyte precursor, the solid electrolyte being such that apexes of X-ray diffraction peaks in an X-ray diffraction pattern obtained by an X-ray diffraction method using a Kα
-ray of Cu exist at diffraction angles 2θ
of 16.7°
±
0.25°
, 20.4°
±
0.25°
, 23.8°
±
0.25°
, 25.9°
±
0.25°
, 29.4°
±
0.25°
, 30.4°
±
0.25°
, 31.7°
±
0.25°
, 33.5°
±
0.25°
, 41.5°
±
0.25°
, 43.7°
±
0.25°
, and 51.2°
±
0.25°
, respectively, in said X-ray diffraction pattern, and that a half-width of each of said X-ray diffraction peaks is not larger than 0.5°
. - View Dependent Claims (5, 6)
-
Specification
-
- Resources
-
Current AssigneeSumitomo Electric Industries Limited (Sumitomo Corporation)
-
Original AssigneeSumitomo Electric Industries Limited (Sumitomo Corporation)
-
InventorsOta, Nobuhiro
-
Granted Patent
-
Time in Patent OfficeDays
-
Field of Search
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US Class Current429/322
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CPC Class CodesH01M 10/0562 Solid materialsH01M 2300/002 Inorganic electrolyteH01M 50/403 Manufacturing processes of ...Y02E 60/10 Energy storage using batteries
