This research proposes a method for estimating the residual capacity of Li-ion batteries. The charging and discharging characteristics of Li-ion batteries are investigated and analyzed by a battery test system. The measurement of the initial capacity is based on the improved open-circuit voltage measurement, which compensates the effects of battery aging and self-discharging. The measurement of the used capacity is based on the improved coulomb counting measurement, which compensates the effects of output current and environmental temperature. The designed system provides various functions for battery charging and discharging, battery voltage measuring and recording, battery capacity estimation and calculation, and the log files can be used for further battery characteristics analysis.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-1019104-104343 |
| Date | 19 October 2004 |
| Creators | Lai, Shih-Jung |
| Contributors | Yung-Chun Wu, Tzuen-Lih Chern, Tsai-Chung Yu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1019104-104343 |
| Rights | off_campus_withheld, Copyright information available at source archive |
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