# US 2019/0168624 A1 · Energy storage device for a motor vehicle, and motor vehicle

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- Number: US 2019/0168624 A1
- Document ID: US20190168624A1
- Status: Published application
- Kind: A1
- Application number: 16/323,559
- Filed: 2017-07-06
- Published: 2019-06-06
- Earliest claimed: 2016-08-16
- Assignees: Audi AG
- Applicants: Audi AG
- Inventors: Reinhard PEER; Florian GROSSHAUSER; Matthias HARDT
- Web page: https://patentgrep.com/patent/US20190168624A1

## CPC

- B60L 53/12: Inductive energy transfer
- H01F 27/255: made from particles (H01F27/26 takes precedence)
- H01F 27/2804: {Printed windings}
- H01F 27/2847: {Sheets; Strips (H01F27/2866 takes precedence)}
- H01F 38/14: Inductive couplings
- H02J 50/10: using inductive coupling
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An energy storage device for a motor vehicle. A housing and at least one energy storage device mounted in the housing. A coil device is provided, which is designed for inductively supplying energy via an external magnetic field in order to charge the energy storage, and which is arranged on an outer surface of the housing.

## Claims

### Claim at position 1

1-11 (canceled)

### Claim 12 (depends on 12)

An energy storage device for a motor vehicle, comprising:
a housing and at least one energy storage mounted in the housing, wherein a coil device is provided, which is designed for inductively supplying energy via an external magnetic field in order to charge the energy storage and is arranged on an outer surface of the housing. cm 13. The energy storage device according to claim 12, wherein the coil device has at least one circular conductor track wherein a voltage can be induced via the magnetic field.

### Claim 14 (depends on 13)

The energy storage device according to claim 13, wherein the conductor track is formed from a copper sheet and/or a copper-mesh material.

### Claim 15 (depends on 13)

The energy storage device according to claim 13, wherein a second conductor track is provided, which is guided in directions opposite the first conductor path.

### Claim 16 (depends on 12)

The energy storage device according to claim 12, wherein the coil device has a magnetically conductive support, by which it is fastened to the housing.

### Claim 17 (depends on 16)

The energy storage device according to claim 16, wherein the support is formed from an elastically deformable substrate material with ferrite admixtures.

### Claim 18 (depends on 17)

The energy storage device according to claim 17, wherein the substrate material is an elastomer.

### Claim 19 (depends on 12)

The energy storage device according to claim 12, wherein a protective element is provided, which covers at least the coil device on a surface opposite the housing.

### Claim 20 (depends on 19)

The energy storage device according to claim 19, wherein the protective element is made of a diamagnetic, paramagnetic or magnetically neutral material.

### Claim 21 (depends on 12)

A motor vehicle including an energy storage device according to claim 12.

### Claim 22 (depends on 21)

The motor vehicle according to claim 21, wherein the energy storage device (2) can be arranged in the underbody of the motor vehicle and/or extend at least in sections between two wheel axles of the motor vehicle.