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"Li-ion batteries with redoubled energy density end of 2015 on the market"

Discussion in 'Battery Discussion' started by Tharo, Dec 21, 2014.

  1. Tharo

    Tharo Member

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    I just read this article and has attracted me much attention because it isn't the classic story about a new chemistry of battery that every week usually appears, it is a breakthrough that will produce just improving materials, packaging and optimization production processes.

    Here the article in a important german auto blog, in german language: Fortschritte bei Batterietechnik: Überdenkt BMW Projekt für Brennstoffzellen-Auto ?


    Here the translate with Google Translate:

    The British magazine Autocar quoted BMW sales and marketing chief Ian Robertson effect that BMW continues working on a PHEV prototype in the conversation but Roberston doubts whether it creates the car according to series production. As one of the reasons he cites the development of the Li-ion batteries.
    It is striking: If electric mobility until a few months treated with most carmakers like a wicked stepmother, since summer turns the mood. Virtually all premium manufacturers have more or less openly announced all-electric vehicles. Although this has much to do with the Tesla success and how the electric car pioneer stirring up the scene, but even more so with the progress of the Li-ion batteries. There apparently the developers come much faster than originally expected. Had it not been called in the past year in the development departments of Bosch and Continental that you will need to early 2020 to double the capacity of the battery package, it is now probably very close to this goal.
    Just days ago, Renault-Nissan CEO Carlos Ghosn said in a TV interview that if you were standing in battery technology of a breakthrough and announced that they would double the range to over 400 kilometers for the next generation of all-electric Nissan Leaf ,
    Apparently, these are not "Nissan miracle", but a development on a broad basis. Marcus Fendt, Managing Director, "The Mobility House" (TMH), a leader in providing energy management of electric cars, confirmed to the CAR PRODUCTION: "Li-ion batteries with redoubled energy density end of next year on the market. "meaning: the previous range of compact cars outside the Tesla League climb of 150 to 200 kilometers, are possible today to nearly double. For e-cars come in a range in which the argument of lack of coverage, which inhibits the market success, becoming less important.
    Important point: the higher energy density can not be achieved, according Fendt about a new technology, but solely through an optimization of the production processes, the use of better materials and a skilful bundling of the battery cells to battery packages.
    Does the development of the battery Reported actually so rapidly as it is now emerging that could be used for fuel cell technology actually mean quick death. Although the purely electric mobility has then still the problem of load times, against PHEV vehicles but says the billion-dollar development effort and the complete lack of infrastructure.
    Against this background, BMW now seems actually to send the development of a fuel cell cars again in a Überdenkungs loop.
     
  2. ecarfan

    ecarfan Well-Known Member

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    Thanks. Unfortunately that Google Translate version of that article is almost incomprehensible to this English speaker. It sounds like someone from "The Mobility House" claims that Lithiumion battery capacity is going to double over the next year because of a number of optimization in design, packaging, and manage,net systems and not because of any fundamental change in battery chemistry? Is that correct?
     
  3. Tharo

    Tharo Member

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    Correct.
     
  4. bluenation

    bluenation Member

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    lmao @ google translate bringing the comedy. again.

    "Against this background, BMW now seems actually to send the development of a fuel cell cars again in a Überdenkungs loop."

    indeed, i'd love to try that loop, by golly!
     
  5. vgrinshpun

    vgrinshpun Active Member

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    The author of the article in the OP is seemingly making a claim that developments in optimization of design, management and packaging of existing Li-ion batteries will allow to double the energy density by the end of next year. This claim is based on the projections of availability of Nissan Leaf with doubled range by the end of next year. What author has failed to note, however that because of the series of decisions made by Nissan engineers, the Leaf Li-ion battery pack has weight energy density which is almost two times lower than the energy density of the Model S battery pack. So Nissan is just trying to catch-up with the Tesla in terms of the battery pack energy density.

    This article just shows how far ahead of the competition Tesla Motors really is and how much confusion on the subject there is...

    Here are the numbers:

    Tesla Model S battery pack weight - 1323 lb
    Tesla Model S battery pack energy capacity - 85 kWh
    Tesla Model S battery pack energy density - 85000 / 1323 = 64.25 Wh/lb

    Nissan Leaf battery pack weight - 648 lb
    Nissan Leaf battery pack energy capacity - 24 kWh
    Nissan Leaf battery pack energy density - 24000 / 648 = 37.04 Wh/lb

    Data:

    2013-tesla-model-s-battery-pack-comparison-inline-photo-493548-s-original.jpg

    2013 Tesla Model S Test - Review - Car and Driver


    Regarding the BMW being skeptical about the hydrogen cars (Duh!) here is the link to the original Autocar article:

    BMW confirms hydrogen car development | Autocar
     
  6. Tharo

    Tharo Member

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