Electrochemical Behavior of Microscopic Secondary Batteries
1999-01-2685
08/02/1999
- Event
- Content
- This paper describes electrochemical behavior of microscopic batteries based on both the lithium/ion and Ni/Zn couples. These batteries are being developed for use in MEMS devices and other microelectronics, especially remote, autonomous sensors. Many of these applications require a combination of long cycle life, moderate energy storage capability, and periodic high power output. Batteries have been made using high-volume, lowcost, fabrication techniques, described in prior publications. These batteries have been built and evaluated for their electrochemical performance. Power output from both types of cells is impressive; current densities of 80 - 100 and 20 - 50 mA/cm2 have been observed, for discharges of several seconds, for Ni/Zn and Li/Ion cells, respectively. Much higher current densities are observed for discharges lasting a few milliseconds, such as would be needed in many applications. Specific capacities of 2 - 4 C/cm2 are also obtained. These and other electrochemical behaviors will be discussed.
- Pages
- 7
- Citation
- Harb, J., Holladay, J., Humble, P., Barksdale, R. et al., "Electrochemical Behavior of Microscopic Secondary Batteries," SAE Technical Paper 1999-01-2685, 1999, https://doi.org/10.4271/1999-01-2685.