TY - JOUR
T1 - Advanced materials for the 3D microbattery
AU - Golodnitsky, D.
AU - Yufit, V.
AU - Nathan, M.
AU - Shechtman, I.
AU - Ripenbein, T.
AU - Strauss, E.
AU - Menkin, S.
AU - Peled, E.
N1 - Funding Information:
We would like to especially thank Dr. L. Burstein, Dr. Yu. Rozenberg, Dr. A. Gladkich and Dr. Z. Barkai of the Wolfson Applied Materials Research Center for conducting the XPS, XRD, SEM, TOF–SIMS and AFM measurements. We express our gratitude to the Government of Israel, RAMOT (University Authority for Applied Research and Industrial Development Ltd.), and to USAF (Contract No. F61775-01-WE020, FeS cathodes), for partial support of this project.
PY - 2006/2/28
Y1 - 2006/2/28
N2 - Out recent achievements in the development of three-dimensional (3D) thin film microbatteries on silicon and on microchannel plates (MCP) are presented. In such 3D microbatteries, the battery sandwich-like structure, including electrodes, electrolyte and current collectors, is deposited conformally on all available surfaces, thereby utilizing the dead volume of the substrate. Thin-film molybdenum oxysulfide and iron sulfide cathodes were deposited galvanostatically. XRD, XPS and TOF-SIMS characterizations indicated that the submicron thick MoOySz films were amorphous, with the stoichiometry of the films varying with depth. Electrodeposited FeSx films have an amorphous, network-like porous structure with nanosize particles. A special flow cell for conformal coating of the perforated substrates was designed. A Li/hybrid polymer electrolyte (HPE)/MoOyS z-on-Si 3D half cell ran at id = ich = 10 μA cm-2 and room temperature for 100 charge/discharge cycles with 0.1%/cycle capacity loss and 100% Faradaic efficiency. A 3D half cell on MCP exhibited 20 times higher capacity than that of a planar half cell with the same footprint.
AB - Out recent achievements in the development of three-dimensional (3D) thin film microbatteries on silicon and on microchannel plates (MCP) are presented. In such 3D microbatteries, the battery sandwich-like structure, including electrodes, electrolyte and current collectors, is deposited conformally on all available surfaces, thereby utilizing the dead volume of the substrate. Thin-film molybdenum oxysulfide and iron sulfide cathodes were deposited galvanostatically. XRD, XPS and TOF-SIMS characterizations indicated that the submicron thick MoOySz films were amorphous, with the stoichiometry of the films varying with depth. Electrodeposited FeSx films have an amorphous, network-like porous structure with nanosize particles. A special flow cell for conformal coating of the perforated substrates was designed. A Li/hybrid polymer electrolyte (HPE)/MoOyS z-on-Si 3D half cell ran at id = ich = 10 μA cm-2 and room temperature for 100 charge/discharge cycles with 0.1%/cycle capacity loss and 100% Faradaic efficiency. A 3D half cell on MCP exhibited 20 times higher capacity than that of a planar half cell with the same footprint.
KW - Microbattery
KW - Thin-film cathode
UR - http://www.scopus.com/inward/record.url?scp=33344469254&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2005.05.029
DO - 10.1016/j.jpowsour.2005.05.029
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AN - SCOPUS:33344469254
SN - 0378-7753
VL - 153
SP - 281
EP - 287
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 2
T2 - Selected Papers Presented at the 2004 Meeting of the International Battery Materials Association
Y2 - 18 April 2004 through 22 April 2004
ER -
