Electrochemical energy storage devices
摘要
說明書
Embodiments of the present invention relate to solid-state energy storage devices and methods of making solid-state energy storage device in which components of the devices are truly solid-state (i.e., they do not comprise a gel). The solid-state battery nomenclature is not new but it has always been misleading in the prior art. Many “solid-state batteries” utilize either gels or in some case powders for the electrolyte layers and never homogenous, consolidated solid materials that can integrate into semiconductor chips directly, for example. Gel materials prohibit both incorporation within VLSI/ULSI chips, and restrict temperature ranges to approximately ambient.
Solid-state electrolyte layers have been utilized in some solid oxide fuel cells. When used in a solid oxide fuel cell, solid-state electrolyte layers normally conduct ions at a practical rate only at extremely elevated temperature, such as exceeding 600° C. However, the solid electrolyte layers described herein exhibit high ionic conductivity, which may approximate or exceed that of liquid or gel electrolytes, even at ambient or near ambient temperatures. The ambient temperature ionic conduction exploited herein also offers further advantages of preserving high electrical resistance and dielectric strength, which are commonly sacrificed in solid-state supertonic conductors at high temperatures.
