| Presentation | 2001/1/9 Degradation of Nickel-Cadmium Batteries for Cordless Telephones and Reliability of a Battery Checker on Capacity Estimation Akira Yamashita, Toshiro Hirai, Masayasu Arakawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We estimated the capacities of more than 250 used nickel-cadmium(Ni/Cd)batteries with a battery checker, which we have developed, and compared them with the measured ones to confirm the accuracy of the estimation. The error for 60% of tested batteries was within ±20%. On the other hand, less than 5% of the batteries showed large estimated capacities because they were internally short-circuited. One third of the tested batteries showed the estimated capacities less than 80% of the measured ones. It may have been caused by the too small value of internal resistance used in the equation for degradation estimation. Our battery checker would be more reliable for battery degradation estimation with an improved equation for estimation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Battery checker / Ni/Cd battery / Battery degradation estimation / Cordless telephone / Internal short circuit |
| Paper # | EE2000-52,CPM2000-156 |
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| Conference Information | |
| Committee | EE |
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| Conference Date | 2001/1/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Energy Engineering in Electronics and Communications (EE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Degradation of Nickel-Cadmium Batteries for Cordless Telephones and Reliability of a Battery Checker on Capacity Estimation |
| Sub Title (in English) | |
| Keyword(1) | Battery checker |
| Keyword(2) | Ni/Cd battery |
| Keyword(3) | Battery degradation estimation |
| Keyword(4) | Cordless telephone |
| Keyword(5) | Internal short circuit |
| 1st Author's Name | Akira Yamashita |
| 1st Author's Affiliation | NTT Telecommunications Energy Laboratories() |
| 2nd Author's Name | Toshiro Hirai |
| 2nd Author's Affiliation | NTT Telecommunications Energy Laboratories |
| 3rd Author's Name | Masayasu Arakawa |
| 3rd Author's Affiliation | NTT Telecommunications Energy Laboratories |
| Date | 2001/1/9 |
| Paper # | EE2000-52,CPM2000-156 |
| Volume (vol) | vol.100 |
| Number (no) | 545 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |