"70 Times Faster-charging"

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,917
8,533
61
West Sx RH
Problem with graphene for ebike battery is it adds more weight.
 

guerney

Esteemed Pedelecer
Sep 7, 2021
11,390
3,234
"Twenty percent of a lithium-ion battery pack (in a vehicle) is to do with cooling them...It does not overheat and it nicely operates below zero so far in testing.... They don’t need circuits for cooling or heating, which currently accounts for about 80kg in a 100kWh pack... between 150 and 160Wh/kg and 7000W/kg. ” - May 2021

 

flecc

Member
Oct 25, 2006
53,191
30,598
"Twenty percent of a lithium-ion battery pack (in a vehicle) is to do with cooling them...It does not overheat and it nicely operates below zero so far in testing.... They don’t need circuits for cooling or heating, which currently accounts for about 80kg in a 100kWh pack... between 150 and 160Wh/kg and 7000W/kg. ” - May 2021
Cooling and heating circuits on Li-ion are largely unnecessary. That's why my latest Nissan Leaf series did away with them, increasing their range most of each year.

Their battery heating circuit on the previous Leaf didn't cut in until temperatures were far lower than we usually experience in Britain and in our climate and traffic conditions they had little chance to overheat.

And many of them have been sold and used in Norway which straddles the arctic circle.
.
 

guerney

Esteemed Pedelecer
Sep 7, 2021
11,390
3,234
"... runs on 10 kilowatts of electrical power and produces seven liters of fuel per day"

How to Make Carbon-Neutral Gasoline Out of Thin Air

 

guerney

Esteemed Pedelecer
Sep 7, 2021
11,390
3,234
Disruption or hype: Are sodium-ion batteries catching up and replacing lithium-ion ones in EV?

 
  • Like
Reactions: Brian55