SOLID ELECTROLYTE AND METHOD FOR PRODUCING THE SAME

Title:

SOLID ELECTROLYTE AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

Japanese Patent JP2013037992

Kind Code:

A

Abstract:

To provide a solid electrolyte that has relatively high lithium ion conductivity and can be sintered at low temperature.

A solid electrolyte of the present invention includes: a crystalline lithium ion conductive substance; and Li⁺_x(B_1-y,A_y)^z+O^2-_δ (in the formula, A represents at least one or more kinds of elements selected from among C, Al, Si, Ga, Ge, In and Sn, y satisfies 0≤y<1, z represents an average valence of (B_1-y,A_y), and x, y and δ satisfy a relational expression of x+z=δ/2.) as a base material. The lithium ion conductive substance is preferably a garnet-type oxide represented by a basic formula: Li_5+xLa₃Zr_xA_2-xO₁₂ (in the formula, A represents one kind or more of elements selected from the group consisting of Sc, Ti, V, Y, Nb, Hf, Ta, Al, Si, Ga and Ge, and x satisfies 1.4≤x<2).

Inventors:

OTA SHINGO
SAEKI TORU
KOMAGATA SHOGO
ASAOKA MASAHIKO

Application Number:

JP2011174904A

Publication Date:

February 21, 2013

Filing Date:

August 10, 2011

Export Citation:

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Assignee:

TOYOTA CENTRAL RES & DEV

International Classes:

H01B1/06; C01B35/12; C01G33/00; H01B13/00; H01M10/0562

Domestic Patent References:

JPS60160570A	1985-08-22
JP2010272344A	2010-12-02

Other References:

JPN6015010547; Ｓｏｌｉｄ　Ｓｔａｔｅ　ＩｏｎｉｃｓＶｏｌ．４７，Ｎｏ．３-４, 199109, ｐｐ．２５７-２６４

Attorney, Agent or Firm:

Aitec International Patent Office

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