Best battery technology

[GreenRoad]

Hello,

i really enjoy to read this forum, now i want also write something ^^ .. i am looking for a powerful cell, i want to build a battery pack witch is small and powerful.
i had looked the last days but i dont find anything i like . i will make battery packs with 36 - 72 V . with different capacitys.

the cell should be able to work without a bms . The cycle time of the cell should be about 1000 or >.. and > 10C the single cell .

Witch cells do you prefer ?

greetings from Austria

 

[itchynackers]

Unobtanium

 

[docnjoj]

Sounds like Konions from Bosch or Makita packs come closest to your needs.
otherDoc

 

[miro13car]

15Ah pouch LiFePo cells from A123 are the most powerful cell of this chemistry so far as I am aware.
The lowest internal resistance of any 10Ah-15Ah cell of this chemistry.
Means the highest currents can be drawn without heating, but cell man ran out of them before I could decide.
I prefer cyclindrical or other but with SOLID screw or bolt terminal, soldering scares me off.
aNY OTHER THE BEST?
mc

 

[GreenRoad]

^^ yes i want to have the Unobtanium cells .. this sounds great ..

A123 cells sounds good .. i will make the packs with a battery point weling machine .. it should be a good battery pack.

Exist there any other cells witch are a little bit cheaper ?

 

[GreenRoad]

ok i found the topic with Lithium Battery Reports & Tests' 9/08 i think i will read in this tread this will fit to my requests