GS Yuasa Corporation (Tokyo Stock Exchange: 6674; “GS Yuasa”) announced that it delivered the E3 Solution System, a regenerative power storage system with an output of 2,000kW, to the Hino Transformer Station of Tokyo Tama Intercity Monorail Co., Ltd. (“Tokyo Tama Intercity Monorail”). The emergency running test carried out ahead of commencement of operation confirmed that railway cars, stopped in between stations due to power outage, can be evacuated safely with the electric power of lithium-ion batteries alone.
The E3 Solution System regenerative power storage system supplied by GS Yuasa is equipped with two types of lithium-ion batteries: the LIM25H-8 regenerative absorption lithium-ion battery (high input and output type) for efficiently utilizing the regenerative electric power under normal conditions, and the LIM50EN-12 emergency running lithium-ion battery (large capacity type) (see Overview of E3 Solution System in the following page for the details of its mechanism).
The system is also equipped with a function, being deployed for the first time in Japan, to enable the railway cars to continue emergency running by switching to the regenerative absorption lithium-ion battery even after the discharge from the emergency running lithium-ion battery ends.
GS Yuasa’s lithium-ion batteries can be used in a wide range of applications including large capacity and high input and output. Besides automotive batteries, its batteries have been adopted for various industrial applications including regenerative power storage system, large-scale power storage system, hybrid cranes and AGV (automatic guided vehicles). Going forward, GS Yuasa Group will continue to contribute to disaster countermeasures and an energy-saving society through the spread of systems using storage batteries.
Overview of the emergency running test
| First emergency running | Second emergency running | ||
|---|---|---|---|
| Storage battery | Emergency running lithium-ion battery | Regenerative absorption lithium-ion battery | |
| Running stretch/ distance | The entire stretch of Tama Intercity Monorail Line/16km (Tama Center Sta. to Kamikitadai Sta.) | Kamikitadai Sta. to rail yard/about 4km | |
| Running speed | 15km/h or less | ||
| Railway car composition | Four cars in one unit | ||
| Results | -Confirmed that the railway cars ran without problems in both the first and the second emergency running functions. -Confirmed that the storage battery has capacity sufficient for the emergency running function for an operation period of 15 years. | ||
■ E3Solution System System structure
■E3Solution System System functions
■Converter and regenerative absorption storage batteries of the regenerative power storage system
■Emergency running storage batteries of the regenerative power storage system
■LIM25H-8 regenerative absorption lithium-ion battery
■LIM50EN-12 emergency running lithium-ion battery
