Inorganic solid electrolyte and lithium cell component

Details Inorganic solid electrolyte and lithium cell component Inorganic solid electrolyte and lithium cell component

2006-12-19

2006-12-19

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S322000, C423S303000, C252S062200

Reexamination Certificate

active

07150943

ABSTRACT:
A sulfide-based inorganic solid electrolyte that suppresses the reaction between silicon sulfide and metallic lithium even when the electrolyte is in contact with metallic lithium, a method of forming the electrolyte, and a lithium battery's member and lithium secondary battery both incorporating the electrolyte. The electrolyte comprises Li, P, and S without containing Si. It is desirable that the oxygen content vary gradually from the electrolyte to the lithium-containing material at the boundary zone between the two members when analyzed by using an XPS having an analyzing chamber capable of maintaining a super-high vacuum less than 1.33×10−9h Pa and that the oxygen-containing layer on the surface of the lithium-containing material be removed nearly completely. The electrolyte can be formed such that at least part of the forming step is performed concurrently with the step for etching the surface of the substrate by irradiating the surface with inert-gas ions.

REFERENCES:
patent: 5314765 (1994-05-01), Bates
patent: 5677081 (1997-10-01), Iwamoto et al.
patent: 6025094 (2000-02-01), Visco et al.
patent: 6093503 (2000-07-01), Isoyama et al.
patent: 6200707 (2001-03-01), Takada et al.
patent: 6365300 (2002-04-01), Ota et al.
patent: 1 052 718 (2000-11-01), None
patent: 4-231346 (1992-08-01), None
patent: 5-48582 (1993-07-01), None
patent: 06-279049 (1994-10-01), None
patent: 07-245099 (1995-09-01), None
patent: 2000-340257 (2000-12-01), None
patent: 2001-250580 (2001-09-01), None
patent: 3343936 (2002-08-01), None
“Supersonic Conduction in Li2S-P2S5-LiI-Glasses”, Rene Mercier, et al., Solid State Ionics 5 (1981), North Holland Publishing Company, pp. 663-666.
“Preparation of Li2S-P2S5Amorphous Solid Electrolytes by Mechanical Milling”, Akitoshi Hayashi, et al., J. Am. Ceram. Soc. 84 [2], pp. 477-479, (2001).
“Synthesis and High Lithium Ion Conductivity of New Glass-ceramics in the System Li2S-P2S5”, Shigenori Hama, et al., The 26th Symposium on Solid State Ionics in Japan, Extended Abstracts, pp. 174-175.
“Inorganic Solid Electrolyte”, Denki Kagaku 65, No. 11 (1997) pp. 914-919 (w/ partial English translation) (Previously submitted on Mar. 19, 2003).
International Search Report dated Jul. 27, 2006.

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