Importance

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Abstract

A high energy density rechargeable (HEDR) metal-ion battery includes an anode and a cathode energy layer, a separator for separating the anode and cathode energy layers, and at least one current collector for transferring electrons to and from either the anode or cathode energy layer. The HEDR battery has an upper temperature safety limit for avoiding thermal runaway. The HEDR battery further includes an interrupt layer that activates upon exposure to temperature at or above the upper temperature safety limit. When the interrupt layer is unactivated, it is laminated between the separator and one of the current collectors. When activated, the interrupt layer delaminates, interrupting current through the battery. The interrupt layer includes a temperature sensitive decomposable component that, upon exposure to temperature at or above the upper temperature safety limit, evolves a gas upon decomposition. The evolved gas delaminates the interrupt layer, interrupting current through the battery.

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First Claim