Anti-corrosion for battery current collector
AssigneeAmerican Lithium Energy Corporation
InventorsJiang Fan, Christopher Kompella
Life of this patent
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Abstract
A battery with anti-corrosion protection is provided. The battery can include an electrolyte and a current collector. The electrolyte may be formed from one or more reactive salts capable of corroding the current collector. As such, the current collector may be interposed between a first anti-corrosion layer and a second anti-corrosion layer. The first anti-corrosion layer and/or the second anti-corrosion layer can be configured to prevent the current collector from being corroded by the reactive salts included in the electrolyte by preventing contact between the current collector and the electrolyte. Related methods for corrosion prevention are also provided.
Claims19
A battery, comprising:
- an electrolyte containing a non-air stable lithium salt and a hydrofluoric acid (HF) produced by an oxidation of the non-air stable lithium salt;
- and
- a current collector, the current collector interposed between a first anti-corrosion layer and a second anti-corrosion layer, the first anti-corrosion layer and the second anti-corrosion layer being formed from a thermoset resin, the first anti-corrosion layer and the second anti-corrosion layer further preventing a corrosion of the current collector by at least (i) preventing contact between the current collector and the electrolyte and (ii) participating in a sacrificial reaction in which at least one of the first anti-corrosion layer and the second anti-corrosion layer react with the hydrofluoric acid produced by the oxidation of the non-air stable lithium salt in the electrolyte to prevent the hydrofluoric acid from reacting with the current collector.
Dependencies are inferred from the claim text.