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  • Axion Power Concentrator 238: May 21: Axion Power Reports First Quarter Results For 2013 [View instapost]
    The batteries that were sent to the test lab in Germany would probably have been tested using the VDA specification. Do we know if they were PbC or Advanced Lead Acid?
    May 21, 2013. 09:53 AM | 7 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    I think you hit the nail on the head with "Free the beast!"
    May 20, 2013. 08:35 PM | 10 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    I'm not buying this. The device works like a capacitor and resistor in series. Very easy to model. Lot's of people are now using supercaps as Maxwell is over 100M$ in sales. They are aggressive pioneering new applications and customers for their devices. Why can't Axion do the same? Why can't I buy a PbC battery on an online website?
    May 20, 2013. 08:01 PM | 16 Likes Like |Link to Comment
  • Axion Power Concentrator 211: Feb. 23: Axion Power PbC Batteries Continue To Demonstrate Effectiveness For Railroad Applications Norfolk Southern [View instapost]
    AGM batteries do hate heat and that is the primary reason they are in the truck. If you look at the companies that use AGM batteries, they build higher quality cars and they also care about weight distribution which is a second reason it is in the truck. There is a recall on BMW vehicles right now as their is a problem with the wiring harness somewhere forward of the firewall. This costs $1,500 to replace to give you an idea of the cost of this component. I've also heard the OEM price for this harness is $800 but this sounds high to me.

    Heat primarily promotes grid corrosion of the positive grid. Since Axion PbC uses positive lead electrodes, I'm not sure what would be gained with a PbC battery here. However, some companies think they can duct air to the battery or place the battery behind the firewall just in front of the windshield (see Audi/VW A4 chasis vehicles). This would probably be fine.

    Todays start/stop vehicles use a large L5/H6 DIN sized AGM battery. It is very hard to support both the starts and energy usage with one battery. The main reason is that you have to start the car after pulling the energy out and this is dangerous. It would be much better to use a standard normal sized flooded battery (cheap) and PbC. So you would have two batteries, but they would work much better...
    May 20, 2013. 05:10 PM | 10 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    I'm not sure this is a lot of established markets. Battery powered streetcars, supercaps in hybrid buses, battery powered grid storage, mostly new markets right?

    I've been out for too long to tell exactly what the problem is with Axion but I know that companies like A123 definitely didn't have this problem...
    May 20, 2013. 05:02 PM | 8 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    Vani came from EnerDel. In my opinion, a good lithium ion battery company that stands to do very well going forward as their competitors in the US die off. He should have a full deck of companies for energy storage projects. Maybe this is happening and we just don't know it?
    May 20, 2013. 05:00 PM | 12 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    Slow down please. I have been involved with many startup companies and I can tell you that the number 1 and only thing a CEO needs to do for a company like Axion is raise money and keep the doors open. TG has done an excellent job of this during a very difficult period that saw most battery start ups fail. Even ones like A123 that received over $100M from the government failed. It is not his job to get sales too. You need to have a good team of business development people (relationship builders) and technical sales. The CTO needs to be the key guy watching and finding applications for technologies. I've only met Vani a few times and I won't criticize him. I would ask why Axion as a whole cannot deliver and engage potential customers and applications. I think it comes from further down and needs to be lead by a team of dynamic business development and technical people. Maybe they have these programs and they are just playing their cards close to the vest. Maybe we should be more proactive in identifying applications for them. Lots of good intel up above this post on companies like Brookville. What about hybrid bus companies, wind turbine pitch control companies (Moog's HQ is Buffalo NY right?), etc.
    May 20, 2013. 04:57 PM | 15 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    Do you really think it is that hard to describe the PbC battery? How about high charge acceptance lead acid battery?

    Lead acid batteries have worked wonderfully in the inefficient systems we have used up to this point. UPS systems sit on charge and then discharge when the power drops out. Lead acid batteries start cars and then charge while we are driving. Not much need for charge acceptance here...

    Green systems in the future will need a balance of charge/discharge so you have to have charge acceptance. It doesn't matter if it is a streetcar, hybrid bus/car, grid storage, residential storage, or wind turbine. If you want to improve efficiency, you need a balance of charge discharge.

    So what are the technologies:
    1. Lead acid - can't charge.
    2. Lithium ion - expensive, can't deal with heat especially on hot day
    3. Supercap - really expensive, no energy
    4. PbC - high charge acceptance lead acid.

    Why is this hard? It is not. It was very easy to get into automakers, NS, Navy, etc. I just don't understand why we are not hearing any new good things from Axion.
    May 20, 2013. 04:49 PM | 20 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    Wow - great intel. Following you now for sure! I understand many other cities are interested in streetcars. Do you know more about these other projects too?
    May 20, 2013. 04:38 PM | 5 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    The vehicle that this was going into was expensive and that is all I can say. Your guesses are not far off... It does work, just not for John Q. Public.
    May 20, 2013. 04:37 PM | 5 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    This work is very difficult. You need to have very good technical and sales skill. If you look at Maxwell, Everett still does most of the new customer interactions. You need a very good person to be good in this area.
    May 20, 2013. 12:32 PM | 7 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    They need someone to generate interest. It is not hard. From first hand experience, I can say this.
    May 20, 2013. 12:31 PM | 8 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    How can Axion succeed?

    1. Recognize that there are lots of companies needing battery solutions for streetcars, mining vehicles, automobiles, hybrid buses/trucks, grid storage, etc. GET VERY AGGRESSIVE MOVING SYSTEMS IN THOSE AREAS.
    2. Supercaps can't compete with you in most areas because they are too expensive/low energy density.
    3. Lithium ion batteries will have trouble in high-rate applications (C/5 cannot be sustained without major cooling issues and cost >1,000 / kWh). Custom systems are crazy expensive with a ussual 1-5M$ in NRE - not kidding here. Custom lithium ion battery systems is an oxymoron. Call EnerDel or DowKokam and ask them.

    I think the biggest issue for Axion is just getting aggressive right now. It is difficult to push new programs but in the past new programs were developed with several automakers, NS, trucking systems, Navy, grid storage, residential, etc. This is not new. We have seen the sales issue come up in many other threads on this site. It seems to me that all they need to do is fire their current sales/marketing people and hire some people with vision. This is a real problem right now for Axion but not that hard to fix. There are at least a few good people from A123 looking for jobs I bet.
    May 20, 2013. 11:06 AM | 19 Likes Like |Link to Comment
  • Axion Power Concentrator 237: May 16: Axion Power Reports First Quarter Results For 2013 [View instapost]
    I can say that I just worked on a project that evaluated high rate lithium ion batteries. There are lots of claims of 25C-rate batteries. And, yes, you can do this a few times but if you do it a lot, the batteries heat up and die. We found that C/5 rate was maximum if the battery system was designed with lithium pouch cells, large aluminum heat sinks between cells, and a massive actively cooled cold plate that could sink the heat from the cells.

    Guess were the cost and energy efficiency ended up?
    May 20, 2013. 10:51 AM | 17 Likes Like |Link to Comment
  • Axion Power Concentrator 211: Feb. 23: Axion Power PbC Batteries Continue To Demonstrate Effectiveness For Railroad Applications Norfolk Southern [View instapost]
    Lead-dioxide is coated onto a lead grid. The coating is thin so that even if it is resisitive it doesn't matter. Note that lead sulfate is far less conductive. The grid is metallic lead and the rest of the connection is metallic lead. Almost all batteries use this same strategy because activate materials are generally not that conductive compared to metals.

    There are lots of batteries with high power (lithium ion, NiMH, lead acid, etc.) Few are powerful at low temperatures (-20C for starting automobiles). The ones that are feature water-based electrolytes - this is really the key element of the design.

    I would say this article is misleading and not accurate and the conductivity of PbO2 is really secondary.
    May 20, 2013. 10:42 AM | 3 Likes Like |Link to Comment
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