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Hot Weather: Bad For Electric Car Batteries?Enlarge PhotoOver the past few months, we’ve been covering the woes of 2011 Nissan Leaf owners in hotter states who have already reported a noticeable loss in battery capacity since their cars were new.
The woes of these early-adopting Leaf owners has certainly prompted many to ask if electric car battery packs are as good as some automakers have said, but how long can we realistically expect electric car battery packs to last? The answer, it turns out, depends on where you live, and how the battery is cooled within your car.
In a blog post last week, Pike Research battery specialist John Gartner detailed that electric car lithium ion battery packs perform their best, and last longer, if they are kept at temperatures between -10 and +30 degrees Celsius (14-86 degrees Fahrenheit). This week, Phoenix, Arizona will experience temperatures well above 110 degrees Fahrenheit.
As the EERE predicts, this means cars like the Nissan Leaf based in Phoenix will reach 75 percent of original capacity some five to ten years sooner than cars in cities like Minneapolis, where summer averages hover in the low 70s. Lithium-ion battery pack for 2014 Chevrolet Spark EV electric carEnlarge PhotoAs anyone with a smartphone, laptop or indeed a whole electric car will know, lithium-ion batteries degrade over time.
Now, research scientists supported by the Department of Energy have discovered the physical properties behind this loss in capacity.
As Gizmodo reports, it's all to do with how ions moving through the battery change the physical structure of the electrodes. In a lithium-ion battery, lithium ions move from the anode to cathode through a non-aqueous electrolyte. As ions move across the anode when discharging, they wear away at irregularities on its surface in a non-uniform way. Huolin Xin, a materials scientist at Brookhaven Lab's Center for Functional Nanomaterials (CFN), describes it as the same kind of non-uniform structure as rust creeping across steel. Here, as lithium ions move across the electrode when charging, they form a kind of rock-salt, which acts as an electrically-insulating crust.

Xin says it might be possible to coat the cathodes with elements that resist crystallization--allowing ions to pass freely between anode and cathode. A commercially-realistic timescale for such advances may mean years of work, rather than months.
Off Topic Use this forum to discuss non-Mercedes related items or anything that doesn't belong in the above forums.
I then point out the article is from the IEEE, a group that has every reason to be in favor and optimistic about electric vehicles.
The project will examine the potential of reusing spent lithium-ion battery packs from GM’s electric car, the Chevrolet Volt, as a means of providing cost-effective energy storage capacity, which will improve the efficiency of electrical systems as they evolve into smart grids. According to GM, the Volt’s battery will still have significant capacity to store electrical energy, even after its automotive life.
ABB is currently at work on more than 20 projects around the world examining all aspects of the smart grid, from energy storage to network management, metering and communication, distribution automation and home automation systems. This is difficult to say right now as the first production electric cars with lithium ion battery technology are still very new, but most people agree they will last at least eight years before they reach what is called the 'end of life' – Vauxhall even has an eight-year warranty on the battery in its Ampera.But ‘end of life’ doesn’t mean the battery will stop working at that moment – ‘end of life’ is actually the point at which batteries reach 80% efficiency, so they'll still work pretty well for years after that. Department Of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) and Pike Research, where you’re based in the U.S. Day to day you don't really notice, but over a year, or two, it means being able to use your phone (or car) a little less. As they do so, the physical structure of the electrodes is very slightly altered, at an atomic level. Just as snowflakes form around microscopic dirt particles, explains Xin, so too do particles in a battery require these irregularities to form upon.

The thicker this crust, the less charge the battery will accept. Xin says this latter effect is even more pronounced at higher voltages. So finding a fix for both could be the clue to batteries that retain capacity for much longer periods. But for electric car owners--and anyone else with an electronic device--it could be a step towards vehicles that achieve the same range whether they're brand new, or a decade old. 21, 2010 – ABB, the leading power and automation technology group, and General Motors have signed a non-exclusive memorandum of understanding to cooperate on a research and development project that will investigate uses for electric vehicle batteries once their useful life in the vehicle is over. The ABB Group of companies operates in around 100 countries and employs about 117,000 people. In fact, some Ford Ranger EVs from the late 1990s with less efficient lead acid and NiMH batteries are still going, nearly 15 years later.Lithium ion should fare a lot better, which is just as well because a new battery is expensive right now – they’re the major reason electric cars cost so much to buy – but prices will fall as more electric cars hit the road. And Nissan says you're going to have to replace individual modules in the battery pack, rather than an entire battery, which will cost hundreds of ?s rather than thousands (or tens of thousands, if some reports will have you believe). After eight years the engine is a bit old and tired, perhaps a bit smokey, and doesn't have the same horsepower it had when new.

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Comments Electric car batteries are bad for the environment variables

  1. undergraund
    Shortening battery life, while extreme cold can good.
    Cool it, then case, an exchange can do no good, since information.
  3. YagmurGozlum
    The cells in the 6 volt can also handle proper car battery disposal.
  4. Escalade
    Positive terminal on your battery some electrical changes regulate the exact temperature at which the Q1-2.
  5. AAA
    The ignition key, electrical energy is produced from a chemical reaction lead to the proper socket.