کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287317 | 973218 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of long-term overcharge and operated temperature on performance of rechargeable NiMH cells Effect of long-term overcharge and operated temperature on performance of rechargeable NiMH cells](/preview/png/1287317.png)
In this article, sub-C size cylindrical NiMH cells were constructed for the performance investigation under long-term overcharge and elevated temperatures. The influence of operated conditions on cell performance and electrode materials was examined. The experimental results revealed that the NiMH cells had good tolerance for 1-month overcharge at a 0.2C rate, remaining the capacity and capacity-rate performance and showing promise as a candidate for backup power sources. However, the sub-C size NiMH cells did not exhibit good performance at elevated temperatures, and the cycling stability with 100% DOD (depth of discharge) at temperature of >50 °C is necessary to be further improved. The deterioration of electrochemical capacity and cycling stability at elevated temperatures was analyzed and the reasons were discussed.
Journal: Journal of Power Sources - Volume 159, Issue 2, 22 September 2006, Pages 1478–1483