Transportation vehicle power safety

Patent metadata

Field	Value
Publication number	US-10967210-B2
Application number	US-201916362865-A
Country	US
Kind code	B2
Filing date	Mar 25, 2019
Priority date	Mar 25, 2019
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

Power sources, such as batteries, for transportation vehicles can provide at least partial electric drive power. The power sources can include an activation layer arranged between collectors adapted for opposite charging. The activation layer can include fire suppression system disposed therein for releasing fire suppression agent in response to high and/or excessive temperature.

First claim

What is claimed is:

1. A transportation vehicle for at least partial electric drive operation on roadways, the transportation vehicle comprising:
a vehicle base including a chassis,
a drive train coupled with the chassis to drive the chassis along roadways, and
a power storage device connected with the drive train to provide motive power, the power storage device including a pair of collectors configured for opposite electrical charge from each other, an activation layer comprising electrolyte disposed between the collectors, and a fire suppression system including a number of containers each housing fire suppression agent for release responsive to high temperature, the containers extending longitudinally through the electrolyte of the activation layer spaced apart from each other.

2. The transportation vehicle of claim 1 , wherein the fire suppression system is adapted to release fire suppression agent responsive to high temperature as a local temperature exceeding a predetermined threshold.

3. The transportation vehicle of claim 2 , wherein the predetermined threshold includes a predetermined temperature.

4. The transportation vehicle of claim 3 , wherein the predetermined threshold includes a predetermined duration of the predetermined temperature.

5. The transportation vehicle of claim 1 , wherein the at least one container includes a barrier defining a receptacle for housing the fire suppression agent.

6. The transportation vehicle of claim 5 , wherein the barrier includes a thermoplastic.

7. The transportation vehicle of claim 6 , wherein the thermoplastic is configured to weaken at high temperature to release the fire suppression agent.

8. The transportation vehicle of claim 6 , wherein the thermoplastic includes a melt temperature within the range of 100° F. to 500° F.

9. The transportation vehicle of claim 8 , wherein the thermoplastic includes a melt temperature within the range of 175° F. to 300° F.

10. The transportation vehicle of claim 1 , wherein at least one of the containers is engaged with at least one of the pair of collectors.

11. The transportation vehicle of claim 1 , wherein the containers include a number of capsules each containing fire suppression agent.

12. A power storage device for providing motive power for a transportation vehicle having a chassis and a power train arranged for at least partial electric drive along roadways, the power storage device comprising:
a pair of collectors configured for opposite electrical charge from each other, an activation layer comprising electrolyte disposed between the collectors, and
a fire suppression system including a number of containers each housing fire suppression agent for release responsive to high temperature, the containers extending longitudinally through the electrolyte of the activation layer spaced apart from each other.

13. The power storage device of claim 12 , wherein the fire suppression system is adapted to release fire suppression agent responsive to high temperature as a local temperature exceeding a predetermined threshold.

14. The power storage device of claim 13 , wherein the predetermined threshold includes a predetermined temperature.

15. The power storage device of claim 13 , wherein the predetermined threshold includes a predetermined duration of the predetermined temperature.

16. The power storage device of claim 12 , wherein the containers include a barrier defining a receptacle for housing the fire suppression agent.

17. The power storage device of claim 16 , wherein the barrier includes a thermoplastic.

18. The power storage device of claim 17 , wherein the thermoplastic is configured to weaken at high temperature to release the fire suppression agent.

19. The power storage device of claim 17 , wherein the thermoplastic includes a melt temperature within the range of 100° F. to 500° F.

20. The power storage device of claim 19 , wherein the thermoplastic includes a melt temperature within the range of 175° F. to 300° F.

21. The power storage device of claim 12 , wherein at least one of the containers is engaged with at least one of the pair of collectors.

22. The power storage device of claim 12 , wherein the containers include a number of capsules each containing fire suppression agent.

Assignees

• Volkswagen Ag
• Porsche Ag
• Audi Ag

Inventors

• Herrmann Mirko

Classifications

• H01M10/4235

  Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/058

  Construction or manufacture · CPC title

• A62C3/16 Primary

  in electrical installations, e.g. cableways · CPC title

• H01M4/0404

  by coating on electrode collectors · CPC title