Panasonic: new cells holding 3400mA ready in 2012 more than 50% increase

[Eberhard]

FORSCHUNG UND ENTWICKLUNG
Panasonic entwickelt Li-Ionen-Batterie des Typs 18650 mit einer Spitzenkapazität von 3,4Ah




Für den Einsatz in portablem Equipment aller Art entwickelt der Geschäftsbereich Panasonic Industriebatterien jetzt eine besonders leistungsstarke 3,6V Li-Ionen-Batterien des Standards 18650: Dank der innovativen NNP-Technologie wird der Typ NCR18650 eine Kapazität von 3,4Ah erzielen. Die spezielle HRL-Technologie garantiert dabei höchste Sicherheit.



Für die neue Batterie des Typs 18650 (18 mm Durchmesser x 65 mm Länge), der als Standard für viele mobile Anwendungen gilt, setzt Panasonic seine „Nickel Oxide bases New Platform“ (NNP)-Technologie ein. Kernstück ist eine neu entwickelte, für Panasonic patentierte nickelbasierte positive Elektrode, die sehr hohe Kapazitäten ermöglicht. Darüber hinaus verhindern das Material und die Prozess-Technologie die Verformung der aus einer Legierung bestehenden negativen Elektrode bei wieder¬holten Aufladevorgängen.

Damit wird die neue Batterie bei reduziertem Gewicht die höchste Kapazität auf dem Markt von 3,4Ah sowie eine Energiedichte von 730 Wh/L (NCR18650) erreichen. Hinzu kommen eine hohe Zyklenfestigkeit und ein sehr gutes Ladeverhalten sowie eine heraus¬ragende Lagerfähigkeit dank sehr geringer Selbstentladung. Daraus ergibt sich insgesamt eine excellente Performance über den gesamten Lebenszyklus.

Trotz der gesteigerten Leistung, die normalerweise zu einem erhöhten Sicherheits¬risiko führt, bleiben die Panasonic Batterie dank der patentierten Heat Resistant Layer (HRL)-Technologie besonders sicher. Diese Lösung besteht aus einer isolierten Metalloxid-Schicht zwischen den Elektroden, die eine Überhitzung selbst bei einem internen Kurzschluss verhindert.

[mpt]

Quick Google translate:


RESEARCH AND DEVELOPMENT
Panasonic developed Li-ion battery of the type 18 650 with a peak capacity of 3.4 Ah




For use in portable equipment of all types of industrial batteries Panasonic division is now developing a particularly powerful 3.6V Li-ion batteries of the standard 18650 Thanks to the innovative technology, the NNP-type NCR18650 achieve a capacity of 3.4 Ah. The special HRL technology guarantees the highest level of security.



For the new cell, type 18650 (18 mm diameter x 65 mm length), which is considered standard for many mobile applications, is a Panasonic's "Nickel oxides bases New Platform (NNP) technology. The centerpiece is a newly developed and patented for Panasonic nickel-based positive electrode, which allows for very high capacities. In addition, preventing the material and process technology, the deformation of an alloy consisting of negative electrode in re ¬ outdated charge cycle.

To put the new battery at a reduced weight, the highest capacity in the market of 3.4 Ah and a power density of 730 Wh / L (NCR18650) is reached. It has high resistance to cycling and a very good performance and a charge out ¬ superior shelf life due to very low self discharge. This results in an overall excellent performance over the entire life cycle.

Despite the increased power, which usually leads to an increased safety risk ¬, the Panasonic battery is installed, thanks to the patented Heat Resistant Layer (HRL) technology more secure. This solution consists of an insulated metal oxide layer between the electrodes, which prevents overheating even when an internal short circuit.


Q: Is this the Model S cell?

[vfx]

Curious. Of course they have been lab testing them and probably even checking their performance in portable tools and laptops but, could they spare 8000 for a Model S testing/ Tesla tends to use proven batteries. Testing would seem a minimum.

[AnOutsider]

Yeah, Tesla has a lot to prove. Using unproven technology in their first mass-market vehicle is a big gamble. Would probably make more sense to start offering packs made with them to Roadster owners to test and abuse for a year or so.

Being that they'll be ready in 2012, it could mean Tesla will be testing them for the next year OR it could be ready in 2012, tested for a year, and then used for the 300 mile pack in a future model year.

Lastly, Tesla HAS traditionally used established/proven batteries, but I think now that they've somewhat proven themselves, they can go to manufacturers and ask for specific chemistries/compositions vs using off-the-shelf stuff. Could also be what brought these on. *shrug*

[mpt]

Would probably make more sense to start offering packs made with them to Roadster owners to test and abuse for a year or so.

Sign me up for that program; I'll put myself through the pain of testing a 350mile pack.

[Eberhard]

for those who concerns: http://contracts.onecle.com/tesla-mo...09-07-21.shtml
this contract includes the 3100mA chemistry which shall be used for Model S

[stopcrazypp]

http://www.greencarcongress.com/2009...-20091225.html
This seems to be confirmation of what we heard in Dec 2009.

For Tesla, I'm pretty sure they already locked in the 3100mah cells, which have been in production for a couple of months already. They did a press release about it back in April 2010:
http://www.engadget.com/2010/04/23/p...a-model-s-hav/

The 3400mah will probably be a couple years down the line after the Model S is released.

[dpeilow]

I'd love to see them tested in a Roadster. To show those that say, you know, EV road trips are not possible.

[dsm363]

I'd love to see them tested in a Roadster. To show those that say, you know, EV road trips are not possible.

I think they could offer this as an upgrade option for Roadster owners. You'd have to send your car to Menlo Park but some people may be willing to spend money (probably a lot) to upgrade to a 300+ mile pack (standard charge).

What is the mA rating on the current cells? I tried to search but didn't find it.

[qwk]

What is the mA rating on the current cells? I tried to search but didn't find it.

2.2 ah cells