Long-Life and High-Energy-Density Batteries as a Backup Power Supply

Paper #:
  • 1999-01-2515

Published:
  • 1999-08-02
Citation:
Asakura, K., Shikano, Y., Maeda, S., and Hirai, T., "Long-Life and High-Energy-Density Batteries as a Backup Power Supply," SAE Technical Paper 1999-01-2515, 1999, https://doi.org/10.4271/1999-01-2515.
Pages:
7
Abstract:
We have developed long-life of Ni/MH and of Li-ion batteries for use as a backup power supply for telecommunications. The improved Ni/MH batteries have an expanded operating temperature range and can last about 2.4 years at 25°C, much longer than conventional batteries. We then adapted the intermittent-pulse charging method to further extend the target lifetime to 10 years at 25°C. We are also developing long-life Li-ion batteries that can last 3.5 years or longer at 25°C.
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