Low cost lithium-ion batteries for cable TV/telecom power backup

Modular energy devices, Inc has developed 80 Ah Li-ion battery modules having the nominal voltages of 11 V and 14 V for configuring cable TV/telecom power backup batteries. The modules are constructed from small, highly reliable, affordable and safe Li-ion cells using a proprietary electronic technology called the massively parallel modular architecture. The battery modules are readily combined in series and parallel to produce 24, 36 and 48 and 96 V battery packs configured for a wide range of capacities from 25 to 300 Ah for cable TV/telecom power backup. The use of small cells in combination with the superior electronic architecture makes the high energy battery packs safe, reliable and low cost. The design and preliminary performance data for a 36 V/160 Ah cable TV battery, CTV 100, installed in a customer facility are reported. These batteries with a nominal energy content of 5.8 kWh are drop-in replacements for the lead-acid batteries and provide up to four times longer power backup than lead-acid in the same battery enclosure over the -20 to 60/spl deg/C range.