Encapsulated lithium electrochemical device

摘要

The device has a stack of layers forming a lithium micro-battery (1) deposited a substrate (3) and encapsulated using a protective cap. Current collectors (4, 5) collect current generated by the micro-battery. The cap is sealed on the substrate using the layers forming the collectors and a pre-encapsulation layer (6). The cap has layers of same nature, positioned in same order in line with their respective layers deposited on the substrate so that the layers deposited on the cap and the substrate contact each other for sealing the cap on the substrate when the cap is sealed on the substrate. Strips made of insulating material is defined and delimited by two parallel strips made of conductive material. Getter traps oxygen and moisture penetrating into a cavity defined by the cap and the substrate, where the getter is made of metallic lithium.