Lithium batteries are used in high-speed rail

Date:2016-04-11 View:416

  • High-speed rail is synonymous with tall on the significance of high-speed rail applications in which lithium batteries? What is the role of lithium in the high-speed rail? The project started from a low of 2012 R & D. Now has a full over the past two years, various types of ground tests at the same time meet the FBI, lithium batteries can also pioneered the use in other research projects on the rail as to verify the feasibility.
    Chinese high-speed rail project represents the highest level, led by the total iron, Changchun Railway Vehicles and Qingdao Sifang plant each represents a north-south high-specification car, a standard co-ordinate system type. North and South car battery case can quickly be used interchangeably. Lithium batteries and nickel-cadmium batteries and external installation box consistent interface.
    Install high iron battery pack, each battery capacity 200Ah; nominal voltage 110V. Whole train a total of four sets of the battery pack. Preliminary FBI vehicle was completed in Changchun. Follow-up of iron in the ring test sites into general test run and related experiments. Experimental vehicle is expected to be completed by the end of 2016.
    How lithium batteries will be used in the high-speed rail it?
    Nickel-cadmium batteries and lithium difference between what?
    As used on a conventional train nickel-cadmium batteries.
    1. safe, can overcharge and over-discharge.
    2. Good high and low temperature performance. Operating temperature range -20 ℃ ~ 60 ℃, in this context can be discharged.
    3. Affordable. Cycles in about 500 times.
    1. The energy density is low.
    2. nickel-cadmium belong heavy metals, pollution of the environment.
    3. The memory effect of nickel-cadmium batteries (memory effect), repeated after several maintained at low discharge capacity charge, if you have to do a larger amount of discharge the battery will not be action.
    4. The battery needs regular maintenance, such as adding an electrolyte and the like.
    5. The self-discharge rate is too large, nickel-cadmium batteries from 15 to 30% (January).
    Standard moving trains use lithium batteries.
    1. safety, do not overcharge and over discharge required to support the BMS battery management system.
    2. Good high temperature performance, temperature range of -20 ℃ ~ 60 ℃ can also be used, even 40 degrees can also low rate discharge.
    3. High energy density, current technology is probably about three times the nickel-cadmium batteries. Charge and discharge times in the 3,000 to 10,000 times.
    4. little impact on the environment pollution.
    5. To avoid periodic maintenance.
    6. The self-discharge rate is small. Lithium batteries from 2 to 5% (May).
    Procurement costs are higher than the current nickel-cadmium batteries. According to industry development and expansion of production capacity, as well as continued price cut.
    High-speed rail with a lithium battery in which the significance? What is the role of lithium in the high-speed rail?
    From the above comparison, the high-speed rail is easy to see using standard dynamic lithium battery has a positive meaning.
    Any car even fuel cars have a battery. The role of self-evident. Although the train track is generally used with the grid, do not burn oil, but still need a backup power supply. For all vehicle systems to the low voltage power supply components. Such as a grid outage, when suddenly the interior lighting, air conditioning, etc., when the train starts charging the bow off and landing.
    Currently offline north and south two kind of car, CNR Changchun Railway Vehicles - lithium battery is used on high-speed rail. It can also take the batteries with nickel-chromium CSR Sifang train on a run as a comparison parameter. Currently experiments are still underway with iron ASTRI.


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