Title:
LITHIUM ION-CONDUCTIVE SULFIDE GLASS, PROCESS FOR PRODUCING GLASS CERAMIC, AND WHOLLY SOLID TYPE CELL MADE WITH THE GLASS CERAMIC
Document Type and Number:
WIPO Patent Application WO/2004/095474
Kind Code:
A1
Abstract:
A process for producing a lithium ion-conductive sulfide glass having high electrical conductivity at room temperature from starting materials comprising lithium sulfide and at least one member selected among phosphorus pentasulfide, elemental phosphorus, and elemental sulfur, which comprises: (I) adding at least 6.5 parts by weight of lithium sulfate and/or at least 2.2 parts by weight of lithium thiosulfate as a glass modifier per 100 parts by weight of the lithium sulfide to the starting materials and vitrifying the materials by mechanical milling; or (II) adding at least 0.9 parts by weight of lithium hydroxide as a glass modifier per 100 parts by weight of the lithium sulfide to the starting materials and vitrifying the materials by mechanical milling. By burning this lithium ion-conductive sulfide glass at a temperature not lower than the glass transition temperature thereof, a lithium ion-conductive sulfide glass ceramic having even higher electrical conductivity at room temperature can be produced.
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Inventors:
SEINO YOSHIKATSU (JP)
TATSUMISAGO MASAHIRO (JP)
SHIRAKI YASUSHI (JP)
TATSUMISAGO MASAHIRO (JP)
SHIRAKI YASUSHI (JP)
Application Number:
PCT/JP2004/005914
Publication Date:
November 04, 2004
Filing Date:
April 23, 2004
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
SEINO YOSHIKATSU (JP)
TATSUMISAGO MASAHIRO (JP)
SHIRAKI YASUSHI (JP)
SEINO YOSHIKATSU (JP)
TATSUMISAGO MASAHIRO (JP)
SHIRAKI YASUSHI (JP)
International Classes:
C03C3/32; C03C4/18; C04B35/547; H01B1/12; H01M10/36; (IPC1-7): H01B1/06; C01B17/22; C01B25/12; C03B8/00; C04B35/00; H01M10/36
Foreign References:
| JP2001250580A | 2001-09-14 | |||
| JPH11134937A | 1999-05-21 | |||
| JPH04202024A | 1992-07-22 | |||
| JP2003208919A | 2003-07-25 |
Attorney, Agent or Firm:
Ohtani, Tamotsu (25-2 Toranomon 3-chome,, Minato-k, Tokyo 01, JP)
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