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US 2021/0344086 A1Published application
Rechargeable battery with internal current limiter and interrupter
AssigneeAmerican Lithium Energy Corporation
InventorsJiang Fan, Dengguo Wu
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Abstract
A high energy density rechargeable (HEDR) battery employs a combined current limiter/current interrupter to prevent thermal runaway in the event of internal discharge or other disruption of the separator. The combined current limiter/current interrupter is interior to the battery.
Claims15
An improved high energy density rechargeable battery, comprising:
- a first electrode;
- a first current collector for transferring electrons;
- a current interrupter interposed between the first electrode and the first current collector, wherein the current interrupter comprises a heat sensitive material configured to generate a gas upon activation of at least a temperature trigger, wherein the generating of the gas forms a nonconductive gap between the first electrode and the first current collector, and wherein the forming of the nonconductive gap electrically decouples the first electrode from the first current collector;
- a second electrode having an opposite polarity of the first electrode;
- and
- a separator interposed between the first electrode and the second electrode.
3 more elements
A method, comprising:
- forming a nonconductive gap between an electrode within a battery and a current collector, wherein the nonconductive gap is formed by a heat sensitive material that is adapted to generate a gas upon activation of least a temperature trigger, wherein the heat sensitive material comprises an interrupt layer interposed between the electrode and current collector, and wherein the forming of the nonconductive gap electrically decouples the electrode from the current collector.
Dependencies are inferred from the claim text.