Method and installation for producing an electrode plate, an electrode plate and a rechargeable electrochemical battery
AssigneeClarios Germany GmbH & Co. KG
InventorTatjana Reich
Life of this patent
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Abstract
An electrode plate of a rechargeable electrochemical battery. The electrode plate comprises a substantially flat lead grid having a plurality of grid bars and a plurality of window-like cutouts formed between the grid bars. The electrode plate further comprises an active material introduced into the cutouts and/or onto the grid bars of the lead grid. The active material has an artificially produced pattern of slot-shaped depressions on its surface. The depressions extend to a depth from the outer surface of the active material. Also disclosed is a rechargeable electrochemical battery comprising the at least one electrode.
Claims15
An electrode plate of a rechargeable electrochemical battery, the electrode plate comprising:
- a substantially flat lead grid having a plurality of grid bars and a plurality of window-like cutouts formed between the plurality of grid bars;
- and
- an active material introduced into the plurality of window-like cutouts, or onto the plurality of grid bars of the substantially flat lead grid, or both, to form an external surface of the electrode plate, the active material having an only artificially produced pattern of slot-shaped depressions on its external surface, the slot-shaped depressions extending to a depth from the external surface of the electrode plate in a direction toward the plurality of grid bars, the pattern of the slot-shaped depressions forming an irregular, network-like structure on the external surface, wherein at least a first slot-shaped depression of the slot-shaped depressions extends at least 0.5 mm to 1.0 mm in depth and at least a second slot-shaped depression of the slot-shaped depressions extends to a depth all the way through the active material to the substantially flat lead grid and wherein the pattern of the slot-shaped depressions forming the irregular, network-like structure is visible on the external surface of the electrode plate.
A rechargeable electrochemical battery comprising:
- a case;
- a first terminal coupled to the case;
- a second terminal coupled to the case;
- and
- a battery cell enclosed by the case, the battery cell including a plate pack comprising
- a first electrode plate with a first polarity, the first electrode plate coupled to the first terminal;
- a second electrode plate with a second polarity different from the first polarity, the second electrode plate coupled to the second terminal;
- a separator material separating the first electrode plate from the second electrode plate;
- and
- wherein the first electrode plate comprises:
- a substantially flat lead grid having a plurality of grid bars and a plurality of window-like cutouts formed between the plurality of grid bars;
- and
- an active material introduced into the plurality of window-like cutouts, or onto the plurality of grid bars of the substantially flat lead grid, or both, to form an external surface of the first electrode plate, the active material having an only artificially produced pattern of slot-shaped depressions on its external surface, the slot-shaped depressions extending to a depth from the external surface of the electrode plate in a direction toward the plurality of grid bars, the pattern of the slot-shaped depressions forming an irregular, network-like structure on the external surface, wherein at least a first slot-shaped depression of the slot-shaped depressions extends at least 0.5 mm to 1.0 mm in depth and at least a second slot-shaped depression of the slot-shaped depressions extends to a depth all the way through the active material to the substantially flat lead grid and wherein the pattern of the slot-shaped depressions forming the irregular, network-like structure is visible on the external surface of the electrode plate.
Dependencies are inferred from the claim text.