SAFETY LAYER FOR BATTERY CELLS

A battery may include a first electrode and a second electrode having an opposite polarity as the first electrode. The battery may further include a first current collector electrically coupled with the first electrode and a second current collector electrically coupled with the second electrode. A safe layer may be interposed between the first electrode and first current collector. The safe layer may be configured to respond to being exposed to a first temperature by interrupting a current flow in the battery cell. The safe layer may interrupt the current flow in the battery cell by forming a non-conductive gap between the first electrode and the first current collector. The safe layer may include a first polymer instead of a second polymer such that the safe layer interrupts the current flow in response to the first temperature and not a second temperature.