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Saft to supply battery systems for Siemens project

A Saft Industrial Batteries product story
Edited by the Engineeringtalk editorial team Apr 20, 2009

Saft, a designer and manufacturer of high-technology batteries, has won its first major battery systems order for a Siemens Mobility project based in China.

In a four-year contract, Saft will supply a consortium comprising Siemens Mobility and its Chinese partner, CSR Zhuzhou Electric Locomotive (ZELC), with the onboard batteries for 58 trains currently under construction for the Shanghai Metro Line 11.

The new Shanghai Metro Line 11 trains, which can reach maximum speeds of 100km/h, will enter service in 2010 on the north section of the line, which is just less than 60km long.

Two Saft battery systems, each comprising 80 MRX160 cells, will be installed on each six-carriage trainset.

The battery systems, based on Saft's specialised Matrics MRX nickel-cadmium (Ni-Cd) rail batteries, will provide backup power to support emergency lighting, air conditioning, door operation and communication systems for the Metro trains in the event of an interruption to the main power supply.

They will be assembled locally at Saft's Zhuhai facility.

Saft Matrics MRX batteries have been purpose designed to deliver maximum performance, reliability and low total cost of ownership.

They provide the low-maintenance and long-service-life benefits of sintered/PBE technology within a slim, lightweight block battery package that are claimed to show a major size and volume advantage compared with conventional batteries.

The Matrics MRX design is said to be reliable and does not suffer from the 'sudden death' that can affect some batteries, even in extreme temperatures ranging from -30C to +70C.

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