Re:Inside the Tesla 100kWh Battery Pack
by cesarb on Wednesday January 25, 2017 @04:33PM
(#13486387)
Fuses and active cooling.
Each module has six groups connected in series, and each group has dozens of cells connected in parallel, each cell with its own tiny fuse (see the pictures in the article). If one cell shorts, the fuse removes it from the group, while the rest of the cells in the group is enough to keep it working. And the active cooling removes the heat released from a failing cell, so it won't overheat its neighbors.
Each module has six groups connected in series, and each group has dozens of cells connected in parallel, each cell with its own tiny fuse (see the pictures in the article). If one cell shorts, the fuse removes it from the group, while the rest of the cells in the group is enough to keep it working. And the active cooling removes the heat released from a failing cell, so it won't overheat its neighbors.