bonjour
dans les nouveau composant allez voir le site www.a123systems.com sur les nouveau accu lipo 3000w au kg charge a 90% EN 5 MN sans risque d explosion et de surchauffe
a bientot
il n y a pas de crise de l energie mais une crise de l ignorance B MULLER
Bonjour,
J'obtiens 325 kJ par kg...
Cordialement,
Sans risques d'explosion ?
Je suis curieux, avec tous les soucis que les accus a base de lithium ont...
Les enflammements d'accus viennent de copeaux métalliques qui restent dans l'accu.
Là il a l'air de s'agir de nanotubes. Il y a eu un article dessus dans FS il y a quelques jours, mais je croyais qu'ils n'en étaient qu'au stade du labo et qu'il faudrait encore quelques années avant leur commercialisation.
Okay merci pour les infos, il faut que je me mette a jour alors
A+++
Bonjour
4000 W/kg
Temps de charge : 6mn
Durée de vie : 20.000 recharges ( vingt mille )
Peu sensible au froid
Altairnano solved this problem by using an innovative approach to rechargeable battery chemistry by replacing graphite with a patented nano-titanate material as the negative electrode in its NanoSafe batteries. The outcome is that Altairnano's NanoSafe batteries deliver power per unit weight and unit volume several times that of conventional lithium ion batteries. Altairnano laboratory measurements indicate power density as high as 4000 W/Kg and over 5000W/litre. By using nano-titanate materials as the negative electrode material, the formation of an SEI is eliminated. In addition, the nano-titanate particles are up to 100 times smaller than a typical graphite particle thereby greatly reducing the distance a lithium atom must travel to be released from the particle. These properties also mean that even at very cold temperatures, a nano-titanate battery will produce high power.
The same technology also dramatically increases battery charge and discharge rates; rapid charge is important for next generation electric vehicles so they could be charged in a few minutes rather than hours as with current lithium ion technology. As has been indicated in previous releases the NanoSafe cell has demonstrated that surges of power can be delivered without risking thermal runaway or performance damage to the battery.
Altairnano will be demonstrating its NanoSafe battery technology at the California Air Resources Board Zero Emission Vehicles meeting in Sacramento, September 25th through 27th, 2006.
NanoSafe(TM) is a trademark of Altair Nanotechnologies Inc.
et pour finir leur adresse pour réver encore un peu...
http://www.altairnano.com
A+
Si ils offrent des samples gratuits, faites signe
