% | $
Quotes you view appear here for quick access.

Tesla Motors, Inc. Message Board

  • markp1950 markp1950 Feb 27, 2012 6:14 AM Flag

    A big breakthrough for electric vehicle batteries
    For years, the electric vehicle industry has been eager to build a better electric car battery: one that extends range while having a longer overall life, is affordable, quick-charging and safe.
    Now Envia Systems, a start-up based in the East Bay city of Newark, plans to announce Monday that it has achieved a critical milestone: a rechargeable lithium-ion battery with an "energy density" of 400 watt-hours per kilogram, the highest energy density known to be recorded.
    When commercialized, Envia says the 400 wh/kg battery, with a range of 300 miles and a cost of about $25,000, will slash the price of electric vehicles and make them more affordable for mainstream consumers.
    "My dream is to build an automotive supply-chain for the electric car in the United States and reduce our dependence on foreign oil," said Envia CEO Atul Kapadia in an e-mail Sunday.
    Envia will make its announcement at the ARPA-E Innovation Summit in Washington, D.C. Monday. The start-up received a $4 million grant from ARPA-E in December 2009 to develop advanced lithium-ion batteries for electric cars. It went on to raise $17 million in venture capital from General Motors Ventures, Bay Partners, Redpoint and Pangaea Ventures.

    Read on.....

    SortNewest  |  Oldest  |  Most Replied Expand all replies
    • A comfortable investor is an oxymoron. If you think you can get comfortable before you make an investment then you must be waiting to make your first investment or you had no idea what you were getting into. Every time anyone makes a play there is risk. That's uncomfortable but that's the game. If you get comfortable then you are simply looking at history not thinking about the future. But that's just my view of the markets. But please do tell what are the factors and the situation that would enable you to convert your chatter into action? Just when will you make the big plunge and take a position in a company that is "ultimately going to fail?" Have you really worked the scenarios out or are you just going to play it by ear and see what the future will bring? Or will this just be another one that got away?

    • Actually I'm not Kbodie or Coach or Conservative. The way we write is very different. We have different attitudes. I don't insult people. I don't post every day. I can understand why some people want to go long even if I think they are completely wrong. I admit that my short position right now is underwater (but not significantly) and the my holding period is often years. And I allow anyone to hold any view they want. I often say that isn't america great that anyone can hold an opinion and even back it with cash. Very different when you compare with what my supposed dopelgangers write and profess.

    • iwillnevercheckthisemailagain24 iwillnevercheckthisemailagain24 Feb 27, 2012 9:35 PM Flag

      but but but...

      they are on the cusp of a MAJOR breakthru! this is a sure thing. the major evil oil companies are so afraid of it - that they have forced the banks not to fund it. we need the investment of the US Government to git er done (of course without any personal wealth guaranties)!

    • Yes nomo, your memory serves you well. So what have we here? Yet another 3-5 year breakthrough?

      Batteries have dozens of performance attributes. The attributes can be traded off against each other by adjusting the recipe. You make one attibute better, you make another worse. This "breakthrough" is simply a recipe adjustment, and not even a new one at that. If I'm wrong, I guess we'll know about it in 3-5 years.

    • I know, but was an opportunity to bump. :-)

    • No! It was me, ballcoach!

      No! It was me, Kbodie!

      No! It was me, Iwillnever!

      No! It was me, Ahgotsta!

      The list goes on, doesn't it?

    • Networth,

      rm1280 is one of his i.d.'s.

    • iwillnevercheckthisemailagain24 iwillnevercheckthisemailagain24 Feb 27, 2012 11:35 AM Flag

      gee guys - why not use it for the $2B battery business already out there..?

      and $25000 for 300 miles kinda sucks. a 50mpg car will go $25000/$4per gallon * 50 mpg = 312,500 miles...

      but sure i'll go along with the networthcheerleading. this is GREAT, people are SMART, america is AWESOME, the solution will APPEAR, my investment will GROW.

    • When I saw NSWC Crane, it perked my interest. Still, not as exciting as it looks.

      Crane only ran about two dozen cycles. The summary data from Crane also says that performance was evaluated from charge/discharge rates of only C/10 to C/3: not meaningful for BEVs. Further, Envia's own data shows "91% capacity retention" at 300 cycles. Let's be clear here: that's almost 10% capacity reduction after only 300 cycles.

      These developments are cool and fun to read about; there might even be a future value ("future" meaning >5 years, which yields zero value effect on current automotive equities).

      Definitely no meaning to TSLA.

    • Wow, another green startup company...we have hundreds of them. They have indeed succeeded in getting millions in grants, but will they actually produce a reliable battery at an economical cost or fail like Solyndra did....the reality is that the vast majority of startups fail....but do post back when they have successfully tested their concept battery in real driving conditions in several vehicles for at least 2 years.....

    • View More Messages
143.67-4.58(-3.09%)Feb 10 4:00 PMEST