I just learned of PowerGenix, who is developing a Nickel Zinc battery (NiZN). It's interesting to see a new company try and develop this chemistry, after the spectacular failure of Evercel. PowerGenix is working in a joint venture with a Chinese company, and it's not clear whether their JV partner is the company which had previously partnered with Evercel. As I recall that Chinese company had survived the death of Evercel, and they had some level of rights to the Evercel technology.
http://www.powergenixsystems.com/service.php
PowerGenix Cell Specification
| Nominal Capacity (at c/5 rate) | 2.0Ah |
| Nominal Capacity (15 Amp Discharge) | 1.7Ah |
| Nominal Voltage (1C/15 Amp Discharge) | 1.6V |
| Specific Energy (15 Amp Discharge) | 60Wh/kg |
| Volume Energy Density (15 Amp Discharge) | 169Wh/L |
| Specific Power at 30 Amp Discharge | 900W/kg |
| Internal Impedance (1,000Hz) | <4.5mOhm |
| Internal Resistance (DC) | 7mOhm |
| Charge Time | 1.5 hours80% in 1 hour |
| Charge Life at 15 Amp Discharge (100% depth of discharge) |
200 cycles |
| Ambient Temperature Range Charge | +5°C to +40°C |
| Ambient Temperature Range Discharge | -20°C to +60°C |
| Ambient Temperature Range Storage | -30°C to +50°C |
| Weight | 50g |
| Outer Diameter | 22.4mm. Max |
| Cell Height | 45 mm. Max |
http://www.powergenixsystems.com/technology.php
Benefits Comparison of PowerGenix NiZn Battery
BatteryType |
Energy Density |
Energy Density (Wh/L) | Continuous Power Density
(W/kg) |
Price (¢/Wh) |
Cycle Life | Internal Resistance (mOhm) | High-Rate Operating Temperature(°C) | Comments |
 (NiZn) |
60 | 170 | >900 | 30-50 | 100-500 | <4.5 | -20 to +60 | Exceptional performance, no memory, long shelf life |
| NiCd | 40 | 135 | 600 | 35-60 | 100-800 | >5 | -30 to +60 | Very toxic, memory problems |
| NiMH | 38 | 135 | 600 | 40-60 | 100-800 | >5 | 0 to 50 | Limited temperature performance range, expensive |
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Nickel-Zinc Battery Company Targeting Hybrid Electric Vehicle Market
Is that the same as these btteries?
I found them on the Falcon EV website(http://www.falconev.com/batteries.html) and I was wondering if they were worth the money.
That's kind of my question tooo... yeah, they're the same chemistry. But the company names are different (Evercel != PowerGenix) and the corporate locations are different (Connecticut != San Diego) and the management teams are different and ...
FWIW there were a lot of problems with the Evercel batteries. I have no idea what it takes to keep them reliable.
- David Herron, The Long Tail Pipe, davidherron.com, 7gen.com, What is Reiki
PowerGenix is NOT Evercel or any incarnation of the former company. I work for PowerGenix and have since the start of series A funding. We have never had any relationship with Evercel or their former contract manufacturer. PowerGenix's current CM is a Chinese company called Corun. This is publicly available information. There are no ties between Evercel and Corun or PowerGenix.
PowerGenix cells are cylindrical while Evercel's were prismatic. PowerGenix does not use the same underlying components as Evercel, it is a completely different design.
Welcome, and I am glad you have made this clarification.
I just looked over the powergenix website again to reacquaint myself with it. It appears that it's not possible to buy the batteries right now, is that the case? Is there any timeline when they would be available? Are there plans to make them available direct to the public?
- David Herron, The Long Tail Pipe, davidherron.com, 7gen.com, What is Reiki