LITHIUM SCANDIUM PHOSPHATE-BASED ELECTROLYTES FOR SOLID-STATE LITHIUM RECHARGEABLE MICROBATTERIES

被引：20

作者：

AMATUCCI, GG ^{[1
]}

SAFARI, A ^{[1
]}

SHOKOOHI, FK ^{[1
]}

WILKENS, BJ ^{[1
]}

机构：

[1] BELLCORE,RED BANK,NJ 08877

来源：

SOLID STATE IONICS | 1993年 / 60卷 / 04期

关键词：

D O I：

10.1016/0167-2738(93)90015-U

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Li3Sc2(PO4)3 is a promising candidate for use as an electrolyte in solid state lithium rechargeable microbatteries due to its stability in air, ease of preparation, and resistance to dielectric breakdown. The room temperature ionic conductivity was optimized resulting in an increase of over two orders of magnitude to 3 X 10(-6) S/cm. The formation of Li3(Sc2-xMx)(PO4)3, where M = Al3+ or Y3+, resulted in the decrease of porosity, greater sinterability, and considerable enhancement of the ionic conductivity. Yttrium substitutions enhanced the conductivity slightly while aluminum increased the room temperature ionic conductivity to 1.5 X 10(-5) S/cm for x = 0.4. Preliminary electron beam evaporation of Li3SC2(PO4)3 Yielded amorphous thin films with ionic conductivity as high as 5 X 10(-5) S/cm and a composition of Li4.8SC1.4(PO4)3.

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页码：357 / 365

页数：9

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