期刊
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
卷 19, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0960-1317/19/4/045004
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类别
资金
- National 973 Program [2009CB220102]
- National Defence [XMDX2008176]
- Fujian province [2006H0090]
The miniaturization of power sources is important for meeting the requirements of low power, mass and volume for nano- or microelectronics and MEMS devices. In this paper a dexterous microfabrication process was developed for preparing microscale solid-state lithium batteries. The active size of a single microbattery is 500 mu m x 500 mu m and its thickness is 1.5 mu m. LiCoO2 films prepared by RF sputtering, then annealed at moderate temperature (500 degrees C), were employed as a cathode electrode, and LiPON and Al films were used as a solid electrolyte and an anode electrode, respectively. An individual microbattery delivers a capacity of about 17 nAh at a current of 5 nA at the initial cycles, and can be operated at as high as 40 nA discharge current.
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