Dual function current collector
AssigneeAmerican Lithium Energy Corporation
InventorJiang Fan
Life of this patent
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Abstract
A battery can include a separator, a first current collector, a protective layer, and a first electrode. The first current collector and the protective layer can be disposed on one side of the separator. The first electrode can be disposed on an opposite side of the separator as the first current collector and the protective layer. Subjecting the battery to an activation process can cause metal to be extracted from the first electrode and deposited between the first current collector and the protective layer. The metal can be deposited to at least form a second electrode between the first current collector and the protective layer.
Claims19
A battery, comprising:
- a separator;
- a first current collector;
- a protective layer disposed on the first current collector, the protective layer comprising a polymer and/or a polymer composite that is impenetrable to dendrites comprising a first electrode that is formed in situ between the protective layer and the first current collector, the first current collector and the protective layer being disposed on one side of the separator, and the protective layer being non-ionically conductive in an absence of an electrolyte;
- and
- a second electrode, the second electrode being disposed on an opposite side of the separator as the first current collector and the protective layer;
- wherein subjecting the battery to an activation process causes metal to be extracted from the second electrode and deposited between the first current collector and the protective layer, wherein the deposit of the metal forms the first electrode between the first current collector and the protective layer, and wherein the protective layer prevents the dendrites comprising the first electrode from penetrating the separator.
Dependencies are inferred from the claim text.