SureTrader SureTrader
Home > Boards > US OTC > Miscellaneous >

Axion Power International Inc. (AXPW)

AXPW RSS Feed
Add AXPW Price Alert      Hide Sticky   Hide Intro
Moderator: saj
Search This Board:
Last Post: 9/28/2016 7:44:21 AM - Followers: 117 - Board type: Free - Posts Today: 2

http://www.axionpower.com/

 

Technology

 

Lead-Carbon Energy Storage Device Overview

PbC® Technology

The full technical description of Axion's proprietary

PbC®

technology is a "multi-celled asymmetrically supercapacitive lead-acid-carbon hybrid battery." Like a lead-acid battery, our battery consists of a series of cells. Within the individual cells, however, our construction is more complex. Where the negative electrodes in lead-acid batteries are simple sponge lead plates, our negative electrodes are five-layer assemblies that consist of a carbon electrode, a corrosion barrier, a current collector, a second corrosion barrier and a second carbon electrode. These electrode assemblies are then sandwiched together with conventional separators and positive electrodes to make our battery, which is filled with an acid electrolyte, sealed and connected in series to the other cells.

 

We have been testing laboratory prototypes of Axion's

PbC®

batteries since April 2004. Our test protocol requires a complete charge-discharge cycle every 7 hours to a 90% depth of discharge. During testing, our laboratory prototypes have withstood more than 1,600 cycles before failure. In comparison, most lead-acid batteries designed for deep discharge applications can only survive 300 to 500 cycles under these operating conditions. Based on the work completed during the laboratory development stage, we believe our application specific prototypes will offer several key performance advantages over conventional lead-acid batteries, including:

  • significantly faster recharge rates;
    significantly longer cycle lives in deep discharge applications; and
    minimal required maintenance.

Over five years have been devoted to research and development on various aspects of this technology. Our work has focused on developing our intellectual property, characterizing baseline performance, developing proprietary treatment processes for the activated carbon we use in our electrodes, developing proprietary designs and manufacturing techniques for electrode assemblies and fabricating a series of material and design evaluation prototypes that range from single cell to multi-cell batteries.

 

PbC® Battery Overview

 

Technology and Performance & Economics

Conventional lead acid batteries are comprised of two electrodes: a positive electrode made of lead dioxide (PbO2) and a negative electrode made of sponge lead (Pb). Both the lead dioxide and sponge lead materials are pasted onto lead grids that act as the current collector. Two half reactions occur on the electrodes during charge and discharge that are described by the well known double sulphate theory for lead acid batteries:

  • Positive Electrode
    PbO2 + 4H+ + SO42- + 2e- D PbSO4 + 2H2O (+1.685 V)

    Negative Electrode

    Pb + SO42-D PbSO4 + 2e- (-0.365 V)

    ______________________________________

  • Overall Reaction
    PbO2 + 2H2SO4 + PbD 2PbSO4 + 2H2O (+2.050 V)

The PbC® battery is a hybrid device that uses the standard lead acid battery positive electrode and a supercapacitor negative electrode that is made of activated carbon.  The specific type of activated carbon we use has an extremely high surface area (1500 m2/g) and has been specifically formulated by Axion for use in electrochemical applications. During charge and discharge, the positive electrode undergoes the same chemical reaction that occurs in a conventional lead acid battery, i.e. lead dioxide reacts with acid and sulphate ions to form lead sulphate and water.  The main difference in the PbC® battery is the replacement of the lead negative electrode with an activated carbon electrode that does not undergo a chemical reaction at all.  Instead, the very high surface area activated carbon electrode stores the protons (H+) from the acid in a layer on the surface of the electrode. This new negative half reaction can be written as the following:

  • Negative Electrode in the PbC® battery technology
    nC6x-(H+)x  D nC6(x-2)-.(H+)x-2 + 2H+ + 2e- (discharged)

In conventional lead acid batteries the concentration of acid changes from being very concentrated in the charged state to somewhat dilute in the discharged state as the acid is converted to water.  In contrast, the PbC® battery stores H+ in the negative electrode in the fully charges state which move to the positive electrode during discharge where they are neutralized to form water.  The result is reduced acid concentration swings from the charged to discharged state which reduces grid corrosion on the positive electrode and leads to longer life of the positive electrode.

http://www.axionpower.com/profiles/investor/fullpage.asp?f=1&BzID=1933&to=cp&Nav=0&LangID=1&s=0&ID=10294

 

Is Axion a possible take over target?

 

http://www.reuters.com/article/idUSTRE69642B20101007?pageNumber=1








 

  • 1D
  • 1M
  • 2M
  • 3M
  • 6M
  • 1Y
  • 2Y
  • 3Y
  • 5Y
AXPW
Current Price
Volume:
Bid Ask Day's Range
SureTrader
AXPW News: Current Report Filing (8-k) 09/27/2016 04:32:19 PM
AXPW News: Current Report Filing (8-k) 09/15/2016 04:32:02 PM
AXPW News: Current Report Filing (8-k) 09/09/2016 03:55:08 PM
AXPW News: Current Report Filing (8-k) 09/06/2016 09:25:33 AM
AXPW News: Current Report Filing (8-k) 08/26/2016 12:38:50 PM
News News Alert: Current Report Filing (8-k) 09/27/2016 04:32:19 PM
PostSubject
#4019   Good morning mick good to see you scottieone 09/28/16 07:44:21 AM
#4018   good morning, i see like AXPW mick 09/28/16 03:56:15 AM
#4017   See they released another 3 million shares today, Vivavegan 09/27/16 05:25:26 PM
#4016   Hopefully people with some inside knowledge of things Vivavegan 09/27/16 01:46:48 PM
#4015   Axpw would buy them Roman11 09/27/16 01:46:05 PM
#4014   if equity is selling Who buys the shares buckmaster6985 09/27/16 01:44:32 PM
#4013   It's probably the equity guys selling the shares Vivavegan 09/27/16 01:19:53 PM
#4012   I feel like a group is either buying Roman11 09/27/16 01:15:20 PM
#4011   4 mil shares traded hands yet $per share unchanged. buckmaster6985 09/27/16 12:53:52 PM
#4010   really not much we can do. We jzmak 09/27/16 11:16:04 AM
#4009   Something big is happening and I have Roman11 09/27/16 11:03:18 AM
#4008   YES AXPW $0.0100 = 0.0000 0.00% How buckmaster6985 09/27/16 10:20:11 AM
#4007   Am I reading. This right 3.4 million in opening Roman11 09/27/16 09:55:59 AM
#4006   How can AXPW be fluctuating 0% for the buckmaster6985 09/26/16 01:41:40 PM
#4005   We now have to wait and see what jzmak 09/26/16 01:30:08 PM
#4004   Yes I also believe no r/s will be Roman11 09/26/16 12:37:09 PM
#4003   Yeah my projection of 4's would not need jzmak 09/26/16 11:45:12 AM
#4002   Just alittle more time to buy a few Roman11 09/26/16 10:44:57 AM
#4001   yeah, it looks like we have a few jzmak 09/26/16 10:37:04 AM
#4000   so are we just in a holding pattern Roman11 09/26/16 10:30:27 AM
#3999   Opportunity is knocking. Still hoping it will rise blackhound 09/26/16 04:57:09 AM
#3998   Tesla's Model S and Model X are soon janga 09/25/16 11:52:55 AM
#3997   Volkswagen's 'revolutionary' electric concept car could steal the janga 09/24/16 04:11:13 PM
#3996   A couple of nice buys just went through saj 09/23/16 03:25:51 PM
#3995   I agree. I like to think that jzmak 09/23/16 02:51:54 PM
#3994   http://www.maximgrp.com/ scooter1214 09/23/16 12:40:25 PM
#3993   They keep saying it's the financiers who use Vivavegan 09/23/16 12:00:12 PM
#3992   Again I ask who is MAXM? buckmaster6985 09/23/16 10:42:29 AM
#3991   Already got my 19000 this morning and 13000 yesterday Roman11 09/23/16 10:41:26 AM
#3990   MAXM and his cronies are playing hard to scooter1214 09/23/16 10:07:21 AM
#3989   MAXM and his cronies are playing hard to scooter1214 09/23/16 10:07:11 AM
#3988   Put this Tesla article together with the September Fred7777 09/22/16 11:46:41 PM
#3987   1 good deal could put this back up scottieone 09/22/16 03:38:46 PM
#3986   Did everyone see this article? jzmak 09/22/16 11:55:09 AM
#3985   Yep maybe other time javi2003 09/21/16 01:41:03 PM
#3984   Released 5 hours ago in same time frame Roman11 09/21/16 01:07:24 PM
#3983   who is Maxm? buckmaster6985 09/21/16 11:32:16 AM
#3982   I agree, they are setting it up to jzmak 09/21/16 11:11:47 AM
#3981   Paris auto show in 2 weeks!!!!!! Roman11 09/21/16 10:50:44 AM
#3980   No impact though benchman 09/21/16 10:32:36 AM
#3979   There news hmmm! javi2003 09/21/16 10:18:16 AM
#3978   Yeah saw that :-( benchman 09/20/16 11:30:51 AM
#3977   And MAXM is back... lvhd 09/20/16 11:26:14 AM
#3976   No updates on China battery tests publically disclosed Truth_Hunting 09/20/16 10:15:18 AM
#3975   No r/s first off the float is still Roman11 09/20/16 09:11:39 AM
#3974   They have not approved a new RS. benchman 09/20/16 09:04:18 AM
#3973   Buck...I don't think they have approved a R/S Gateway_Stocks 09/20/16 08:51:11 AM
#3972   Where did you hear that? jzmak 09/20/16 07:28:24 AM
#3971   Is it true that news isn't due on blackhound 09/20/16 05:11:31 AM
#3970   As I stated it was copied from another board buckmaster6985 09/19/16 03:07:01 PM
PostSubject