Back to results
US 9,431,180 B2Granted
Energy storage arrangement
AssigneeAudi AG
InventorJosef Winkler
Life of this patent
Estimating the term…
Abstract
An energy storage arrangement includes at least two rechargeable energy storage devices connected in parallel. A first energy storage device has a plurality of lead-based storage elements, and a second energy storage device has a plurality of lithium-based storage elements. Between charge state limits of 0 to 100% a charge state interval is achieved in which the nominal voltage of the second energy storage device is in a range between the maximum charging voltage and the nominal voltage of the first energy storage device.
Claims27
An energy storage arrangement, comprising:
- a first rechargeable energy storage device comprising a plurality of lead-based storage elements,
- a second rechargeable energy storage device comprising a plurality of lithium-based storage elements, at least one capacitor, the first and second rechargeable energy storage devices are connected in parallel,
- wherein a state of charge interval is defined between state of charge boundaries of 0 and 100%, wherein a nominal voltage of the second energy storage device in the state of charge interval is in a range between a maximum charging voltage and a nominal voltage of the first energy storage device.
An energy storage arrangement, comprising:
- a first rechargeable energy storage device comprising a plurality of lead-based storage elements,
- a second rechargeable energy storage device comprising at least six lithium titanate storage elements, having a combined nominal voltage of 15V at a state of charge of 100%, and at least one capacitor coupled to the at least six storage elements,
- wherein the first and second rechargeable energy storage devices are connected in parallel,
- wherein a state of charge interval is defined between state of charge boundaries of 0 and 100%, wherein a nominal voltage of the second energy storage device in the state of charge interval is in a range between a maximum charging voltage and a nominal voltage of the first energy storage device.
1 more element
Dependencies are inferred from the claim text.