A thin-film rechargeable battery for integration in stand-alone microsystems

Thin-film solid-state rechargeable batteries on silicon are ideal power sources for microsystems applications, where a high level of integration is required. This paper presents a lithium solid-state thin-film battery for integration in stand-alone microsystems. The thin-films were deposited by dire...

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Bibliographic Details
Main Author: Carmo, João Paulo Pereira (author)
Other Authors: Rocha, R. P. (author), Silva, A. F. (author), Gonçalves, L. M. (author), Correia, J. H. (author)
Format: conferencePaper
Language:eng
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/1822/17545
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/17545
Description
Summary:Thin-film solid-state rechargeable batteries on silicon are ideal power sources for microsystems applications, where a high level of integration is required. This paper presents a lithium solid-state thin-film battery for integration in stand-alone microsystems. The thin-films were deposited by direct current (DC) and radio-frequency (RF) reactive sputtering techniques. The materials of the battery includes SnO2, Li3PO4N and LiCoO2 as anode, electrolyte and cathode, respectively. The SnO2 gives the battery a maximum storage capacity of 781 mAhg-1, the LiCoO2 can maintain a capacity of 140 mAhg-1. The two materials used as anode and cathode with the Li3PO4N as electrolyte can obtain an output voltage in the range 3-4.2 V.