Lithium iron phosphate to promote electric cars
In the post-industrial era, popular much faster car than we imagine, in bring efficient and convenience, Daliang exhaust emissions, 也 added great pressure on the environment, and as oil prices and caused carbon dioxide emissions of greenhouse highlight the effects of such issues, it is an urgent need to find new energy sources to replace traditional energy sources. Liquid hydrogen, fuel cells are a good choice, but there are high prices, immature technology and so on, ordinary lead-acid battery costs are relatively low, but the weight of heavy, low energy density, short life, there is a potential heavy metal pollution. Chengdu into a “zero discharge” of all-electric bus, received extensive attention, this all-electric bus using the new lithium iron phosphate as its power core, this new generation of green power electric car has many features and advantages .
High security
To as motor power, security is the overriding consideration. Despite the general safety of lithium batteries Inspiron 9300 battery , Inspiron 9400 battery can be basically guaranteed, but there is a fire in extreme conditions, the possibility of explosion. Lithium iron phosphate lithium battery as the second generation product, its physical properties, coupled with the battery pack built-in over voltage, under voltage, over current, over charge protection, the non-explosion no fire, is the only absolute safety of lithium ion batteries.
Due to high thermal stability of materials and careful process design, battery safety and reliability greatly increased. And improper use of lithium batteries in the explosive phenomena occur compared to lithium iron phosphate even throw in the fire will not explode. High temperature stability up to 400-500 ° C, ensuring high security internal battery; will not overcharge, overheating, short circuit, the impact on explosion or combustion. Rigorous safety testing, even in the worst traffic accident would not explode.
Long life and low cost
As the battery service life (cyclic performance) and overall cost are closely related to the use, and ordinary lithium battery is about 500 times compared to the cycle of life, iron phosphate lithium battery can charge and discharge at room temperature 1500 cycle, the capacity retention rate of 95% above, and 50% capacity of the cycle of life is to reach more than 2,000 times the battery life of the continued distance greater than 500,000 km, you can use about five years, is 8 times the lead acid batteries, nickel hydrogen batteries 3 times, laptop battery is lithium cobalt oxide is about 4 times. Plus the cost of their production is itself less than ordinary lithium batteries, electric cars will undoubtedly be able to greatly reduce the use and maintenance costs.
Discharge performance of lithium iron phosphate also very excellent, smooth power curve, had put strong resistance to the ordinary lithium batteries in less than 3.2V, then discharge is put, may result in scrap. However, in 2.8V lithium iron phosphate release of energy when there is less than 2.5V scrapped problem does not exist.
Easy to use treatment
We know that nickel metal hydride, nickel cadmium batteries there is a strong memory effect, have certain common lithium battery memory effect problem and needs to try to “over full release”, the daily use of electric cars will cause inconvenience, and lithium iron phosphate-free This phenomenon of self-discharge is small; no memory effect, no matter in what state the battery can be used with rechargeable with no need to recharge the first had finished, while the outstanding characteristics of the battery fast charging, VGP-BPS13B/B fast charging with a charger, and a half hours can be sufficient 95 % or so. Treatment after the end of battery life issues, also deserves our attention, lithium iron phosphate does not contain any heavy metals and rare metals, non-toxic, pollution-free, meet the requirements for absolute environmental protection batteries, lead acid batteries there are high levels of lead , after its abandonment, if not handled properly, will constitute a secondary environmental pollution, lithium iron phosphate material in terms of production and use, are non-polluting.
Overall, lithium iron phosphate lithium as a new generation of materials, is its secure as reliable, long cycle life, charge and discharge by the global platform of stability and so the full battery of experts praised, worthy of a new generation of electric vehicles for the green power of core products VGP-BPS9 , VGP-BPS8 , with the electric buses in the practical application of the successful demonstration, it will gradually replace lead-acid batteries, in the current public use of the electric bicycle in Chengdu has been widely used.