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

Format:

Conference/Event

Author/Creator:

Asakura, Kaoru, author.

Conference Name:

34th Intersociety Energy Conversion Engineering Conference (1999-08-02 : Vancouver, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

1999-01-2515

Access Restriction:

Restricted for use by site license