What's New Energy Vehicle Batteries ?
Author: Source: Datetime: 2016-10-18 17:08:41
With the development of new energy vehicles, new energy lifePo4 batteries innovation is also increasing. New energy vehicle batteries is the use of new energy technologies to reduce "greenhouse gas" emissions pollution of the new car battery.
New energy vehicle lifePo4 batteries can be divided into two categories, namely, batteries and fuel cells. Battery suitable for pure new energy vehicles, can be classified as lead-acid batteries, nickel-based batteries,hydride battery, a nickel a blessing and nickel-zinc batteries, sodium? Batteries (sodium-sulfur battery and a sodium nickel chloride lifepo4 48v batteries), rechargeable lithium battery, air battery type. The fuel cell is dedicated to new energy vehicles, fuel cells can be divided into alkaline fuel cell (AFC), phosphoric acid fuel cell (PAFC), molten carbonate fuel cell (MCFC), solid oxide fuel cell (SOFC), proton exchange membrane fuel cell (PEMFC), direct methanol fuel cell (DMFC) and other types.
New energy vehicle batteries in series by a plurality of cells stacked components. A typical LFP battery pack is about 96 battery charging to 4.2V lithium-ion battery, such a battery can produce more than the total voltage of 400V. Although the vehicle power systems battery pack as a single high-voltage battery, each of the entire battery pack is charged and discharged, but the battery control system must be considered independently of each cell. If a lifepo4 battery pack in the battery capacity slightly lower than the other batteries, then after a plurality of charge / discharge cycles, the state of charge gradually deviated from the other battery. If the state of charge of the battery periodically and no other cell balancing, it eventually into a deep discharge state, which leads to damage and ultimately the formation of battery failure. To prevent this from happening, the voltage of each cell must be monitored to determine the state of charge with portable solar power generator. In addition, there must be a means to make a separate charge or discharge the battery to balance the state of charge of the Lifepo4 batteries.
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