Battery thermal barrier systems

A battery thermal barrier system, comprising:

• a battery array including a cell stack positioned between a first end plate and a second end plate;
• wherein the cell stack includes a first battery cell and a second battery cell that are electrically connected in parallel within a common cell bank of the cell stack;
• a first thermal barrier structure arranged directly between the first battery cell and the second battery cell and including a multi-layered configuration adapted to prolong an amount of time required for thermal and electrical energy to be transferred between the first battery cell and the second battery cell during a thermal event;
• and
• a second thermal barrier structure arranged between the cell stack and the first end plate or the second end plate.

A battery thermal barrier system, comprising:

• a battery array including a cell stack having a first battery cell and a second battery cell that are electrically connected in parallel;
• a thermal barrier structure arranged between the first battery cell and the second battery cell;
• and
• the thermal barrier structure includes an insulation layer positioned between a first foam layer and a second foam layer, and the insulation layer includes a sheet moulding compound (SMC) or a phenolic sheet.