Energy storage arrangement

• US 9,754,732 B2
• Filed: 03/30/2012
• Issued: 09/05/2017
• Est. Priority Date: 04/12/2011
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Winkler, Josef, Wansner, Michael
• Primary Examiner(s): Fleming, Fritz M
• Assistant Examiner(s): Dhillon, Jagdeep
• Application Number:
  US14/111,329
• Publication Number:
  US 20140300181A1
• Time in Patent Office: 1,985 Days
• Field of Search: 307 101, 307 91, 307 106, 307 107, 307 102, 307 80, 307 82, 307 66, 320112, 320128, 320162, 324426, 324427, 324425, 4292181, 429235, 180 6529, 180 6521, 180 651, 180 658
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 58/13 Maintaining the SoC within a determined range
• CPC Class Codes: B60L 58/16 responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: B60L 58/20 having different nominal voltages
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: B60R 16/033 characterised by the use of electrical cells or batteries for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: F02N 11/087 Details of the switching means in starting circuits, e.g. relays or electronic switches
• CPC Class Codes: F02N 2011/0885 Capacitors, e.g. for additional power supply
• CPC Class Codes: H01G 11/10 Multiple hybrid or EDL capacitors, e.g. arrays or modules housings, cases, encapsulations or mountings thereof H01G11/78
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/12 Construction or manufacture
• CPC Class Codes: H01M 10/30 Nickel accumulators H01M10/34 takes precedence
• CPC Class Codes: H01M 10/345 Gastight metal hydride accumulators
• CPC Class Codes: H01M 10/4264 with capacitors
• CPC Class Codes: H01M 16/00 : Structural combinations of different types of electrochemical generators
• CPC Class Codes: H01M 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/46 : for ICE-powered road vehicles
• CPC Class Codes: H02J 7/1423 : with multiple batteries
• CPC Class Codes: H02J 7/34 : Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries

Abstract

Energy storage arrangement with a rechargeable energy storage device, wherein the energy storage device includes a plurality of lithium-based storage elements. The energy storage device is composed of three lithium-based storage elements and one lithium titanate-based storage element, or four lithium-titanate-based storage elements and one lithium-based storage element, or three lithium-based storage elements and two nickel metal hydride-based storage elements.

Claims

1. An energy storage arrangement comprising a rechargeable energy storage device having a plurality of lithium-based storage elements selected from one of the following configurations each including storage elements of different types:

3 storage elements based on lithium and 1 storage element based on lithium titanate, which are composed of different materials and thereby are the storage elements of different types, or

4 storage elements based on lithium titanate and 1 storage element based on lithium, which are composed of different materials and thereby are the storage elements of different types, or

3 storage elements based on lithium and 2 storage elements based on a nickel metal hydride, which are composed of different materials and thereby are the storage elements of different types.

2. The energy storage arrangement of claim 1, wherein the plurality of storage elements are connected in series.

3. The energy storage arrangement of claim 1, further comprising an electrical switching device connected upstream of the energy storage device.

4. The energy storage arrangement of claim 3, wherein the electrical switching device is a safety switch configured to provide overload protection, undervoltage protection and temperature protection.

5. The energy storage arrangement of claim 1, wherein the energy storage arrangement forms part of an onboard electrical system of a motor vehicle, wherein the onboard electrical system comprises at least one generator and at least one load consuming electrical power and disconnectable from the onboard electrical system.

6. The energy storage arrangement of claim 5, wherein the at least one generator charges the energy storage device.

7. A motor vehicle, comprising at least one energy storage arrangement with a rechargeable energy storage device having a plurality of lithium-based storage elements selected from one of the following configurations each including storage elements of different types:

3 storage elements based on lithium and 1 storage element based on lithium titanate, which are composed of different materials and thereby are the storage elements of different types or

4 storage elements based on lithium titanate and 1 storage element based on lithium, which are composed of different materials and thereby are the storage elements of different types, or

3 storage elements based on lithium and 2 storage elements based on a nickel metal hydride, which are composed of different materials and thereby are the storage elements of different types.

8. The motor vehicle of claim 7, wherein the energy storage arrangement forms part of an onboard electrical system of the motor vehicle, wherein the onboard electrical system comprises at least one generator and at least one load consuming electrical power and disconnectable from the onboard electrical system.

9. The motor vehicle of claim 8, wherein the at least one generator charges the energy storage device.

10. An energy storage arrangement comprising a rechargeable energy storage device having a plurality of lithium-based storage elements selected from one of the following configurations each including storage elements of different types:

3 storage elements based on lithium and 1 storage element based on lithium titanate, which are composed of different materials and thus are the storage elements of different types, or

4 storage elements based on lithium titanate and 1 storage element based on lithium, which are composed of different materials and thus are the storage elements of different types, or

3 storage elements based on lithium and 2 storage elements based on a nickel metal hydride, which are composed of different materials and thus are the storage elements of different types,

wherein the plurality of storage elements are connected in series; and

an electrical switching device connected upstream of the energy storage device, wherein the electrical switching device is a safety switch configured to provide overload protection, undervoltage protection and temperature protection.

11. A motor vehicle, comprising at least one energy storage arrangement with a rechargeable storage device having a plurality of lithium-based storage elements selected from one of the following configurations each including storage elements of different types:

3 storage elements based on lithium and 1 storage element based on lithium titanate, which are composed of different materials and thus are the storage elements of different types, or

4 storage elements based on lithium titanate and 1 storage element based on lithium, which are composed of different materials and thus are the storage elements of different types, or

3 storage elements based on lithium and 2 storage elements based on a nickel metal hydride, which are composed of different materials and thus are the storage elements of different types,

wherein the plurality of storage elements are connected in series; and

an electrical switching device connected upstream of the energy storage device, wherein the electrical switching device is a safety switch configured to provide overload protection, undervoltage protection and temperature protection.