# US 2021/0242507 A1 · Traction battery of a motor vehicle

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- Number: US 2021/0242507 A1
- Document ID: US20210242507A1
- Status: Published application
- Kind: A1
- Application number: 17/095,847
- Filed: 2020-11-12
- Published: 2021-08-05
- Earliest claimed: 2020-02-03
- Assignees: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Applicants: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Inventors: Thomas Fritz
- Web page: https://patentgrep.com/patent/US20210242507A1

## CPC

- H01M 10/4228: {Leak testing of cells or batteries}
- H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569)
- H01M 10/486: {for measuring temperature}
- H01M 50/20: Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders (structural combination of accumulators with charging apparatus H01M10/46)
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A traction battery of a motor vehicle includes a battery housing, and a plurality of battery modules which are arranged in the battery housing. Each battery module has a module housing and battery cells which are accommodated in the respective module housing. At least one particle sensor and/or at least one gas sensor are/is arranged in the battery housing.

## Claims

### Claim 1

A traction battery of a motor vehicle, said traction battery comprising:
a battery housing,
a plurality of battery modules arranged in the battery housing, wherein each battery module has a module housing and battery cells which are accommodated in the respective module housing, and
at least one particle sensor and/or at least one gas sensor which are/is arranged in the battery housing.

### Claim 2 (depends on 1)

The traction battery as claimed in claim 1, wherein the respective particle sensor and/or gas sensor are/is arranged in a respective module housing of a battery module which is arranged in the battery housing.

### Claim 3 (depends on 1)

The traction battery as claimed in claim 1, wherein the respective particle sensor detects ingress of contaminants from outside the battery housing into an interior of the battery housing or into an interior of the respective module housing.

### Claim 4 (depends on 1)

The traction battery as claimed in claim 1, wherein the respective gas sensor detects outgassing of battery cells into an interior of the respective module housing or into the interior battery housing.

### Claim 5 (depends on 1)

The traction battery as claimed in claim 1, wherein the respective gas sensor is a VOC sensor for volatile organic compounds.

### Claim 6 (depends on 1)

The traction battery as claimed in claim 1, wherein the respective particle sensor is a fine-dust sensor.

### Claim 7 (depends on 1)

The traction battery as claimed in claim 1, further comprising at least one temperature sensor and/or one pressure sensor arranged in the battery housing.

### Claim 8 (depends on 7)

The traction battery as claimed in claim 7, wherein a control device which analyzes leaktightness or non-leaktightness of the module housing and/or of the battery housing depending on a measurement signal of the respective particle sensor and/or of the gas sensor and depending on a measurement signal of the temperature sensor and/or pressure sensor.