jelly roll

Relation Between Silicon-Based Additives in the Anode and the Gap Between Jelly Roll and Can

graph of Si additive and gap between jelly roll and can in a cylindrical cell design

AION Engineering INC All cells discussed here are 18650 NMC cells. Balancing Energy Density and Safety Using silicon-based additives in the anode requires a delicate trade-off in cell design. While silicon increases the energy density, it also brings significant challenges for cell safety. Why More Space is Needed Silicon expands and contracts during charge-discharge cycling, … Read more

Prismatic Cell Electrode Estimation

prismatic cell jelly roll estimation

Using some simple mathematics and dimensions we can do some prismatic cell electrode estimation. The real challenge was: by giving following inputs (length, width & thickness of cathode, anode & separator, fixed mandrel length and dimensions of the prismatic cell case), can we get the thickness of the jelly roll? Is there any direct formula … Read more