Well there is supposedly the Sony/BMZ 21700 "3Tron" cell, that has some pretty impressive claims..Pajda said:Btw. anybody seen any evidence about new 20650,20700,21700,21-70 format cells in "High Density" design with parameters better than (still a waporware) Samsung INR21700-47P? It's been some time when appeared first report on these new formats.
Hillhater said:Well there is supposedly the Sony/BMZ 21700 "3Tron" cell, that has some pretty impressive claims..Pajda said:Btw. anybody seen any evidence about new 20650,20700,21700,21-70 format cells in "High Density" design with parameters better than (still a waporware) Samsung INR21700-47P? It's been some time when appeared first report on these new formats.
such as..
50% more energy
60% more capacity ?
68% increase in output ?
4 times more discharge current ?
http://www.bike-eu.com/home/nieuws/2016/9/quantum-leap-in-battery-innovations-presented-at-eurobike-10127504
Overclocker said:cutoff voltage of 2.0v.
strange... have to find the official datasheet
Pajda said:Overclocker said:cutoff voltage of 2.0v.
strange... have to find the official datasheet
Indeed, but new Sony US18650VC7 have the same 2.0V cut-off voltage too.
Overclocker said:Pajda said:Indeed, but new Sony US18650VC7 have the same 2.0V cut-off voltage too.Overclocker said:cutoff voltage of 2.0v.
strange... have to find the official datasheet
sounds like a "new" chemistry, or a heavily tweaked one
NCA are 2.5v
Pajda said:Here is a first datasheet/technical information list from Sony about VC7. It confirms 2,0V cut-off (but for nominal 0.2C discharge only, otherwise they use standard 2.5V). Also there is a correction for 10A discharge temperature rise of VC7 seen in the Shmuel presentation on page 10. The end temperature is reaching 70°C, which is pretty the same as for MJ and GA. (They probably accidentally used the data for 5A).
https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/180/US18650VC7_5F00_Technical-Infomation_5F00_R0.1.2.pdf
.. So I think that the information about Sony VC7 would deserve a separate thread.