Charging system for all-solid-state battery

Patent metadata

Field	Value
Publication number	US-9399404-B2
Application number	US-201414534723-A
Country	US
Kind code	B2
Filing date	Nov 6, 2014
Priority date	Nov 8, 2013
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

An objective of the present invention is to provide a charging system, capable of increasing the rapid charging capacity of an on-vehicle all-solid-state battery, and reducing the effect of confining pressure on the all-solid-state battery. This is achieved by a charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising: a charging section that charges an all-solid-state battery, a pressing section that applies confining pressure to the all-solid-state battery, and a pressure control section that controls the confining pressure, wherein the pressure control section directs the pressing section so that the confining pressure during charging is higher than the confining pressure during discharging.

First claim

What is claimed is:

1. A charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising:
a charging section that charges the all-solid-state battery,
a pressing section that applies confining pressure to the all-solid-state battery,
a pressure control section that controls the confining pressure applied by the pressing section,
wherein the pressure control section directs the pressing section so that the confining pressure at least some of the time during charging is higher than the confining pressure during discharging, and
a communicator in communication with a traffic congestion prediction system, and when a state of traffic congestion is predicted, a difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

2. The charging system according to claim 1 , wherein, when the state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced to zero.

3. A charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising:
a charging section that charges the all-solid-state battery,
a pressing section that applies confining pressure to the all-solid-state battery, and
a pressure control section that controls the confining pressure applied by the pressing section,
wherein the pressure control section comprises a communicator situated at an exterior of the vehicle, for transmission of a signal relating to the confining pressure of the all-solid-state battery, to an exterior charging under pressure device that is capable of applying a higher confining pressure than the confining pressure applied by the pressing section.

4. A charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising:
a charging section that charges the all-solid-state battery,
a pressing section that applies confining pressure to the all-solid-state battery, and
a pressure control section that controls the confining pressure applied by the pressing section, wherein
the pressure control section directs the pressing section so that the confining pressure at least some of the time during charging is higher than the confining pressure during discharging, and
the pressure control section further comprises a communicator for transmission of a signal relating to the confining pressure, to an exterior charging under pressure device situated at an exterior of the vehicle and capable of applying higher confining pressure onto the all-solid-state battery than the confining pressure applied by the pressing section.

5. The charging system according to claim 4 , wherein a difference in the confining pressure between the charging and the discharging is reduced when the vehicle is caught in traffic congestion, compared to when the vehicle is running normally.

6. The charging system according to claim 5 , wherein the communicator communicates with a traffic congestion prediction system, and when a state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

7. The charging system according to claim 5 , wherein, when the vehicle is caught in traffic congestion, the difference in the confining pressure between the charging and the discharging is reduced to zero.

8. The charging system according to claim 4 , wherein a difference in the confining pressure between the charging and the discharging is reduced when a switching time between the charging and the discharging is within 10 seconds.

9. The charging system according to claim 8 , wherein the communicator communicates with a traffic congestion prediction system, and when a state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

10. The charging system according to claim 8 , wherein, when the switching time between the charging and the discharging is within 10 seconds, the difference in the confining pressure between the charging and the discharging is reduced to zero.

11. The charging system according to claim 4 , wherein the communicator communicates with a traffic congestion prediction system, and when a state of traffic congestion is predicted, a difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

12. The charging system according to claim 11 , wherein, when the state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced to zero.

13. A charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising:
a charging section that charges the all-solid-state battery,
a pressing section that applies confining pressure to the all-solid-state battery, and
a pressure control section that controls the confining pressure applied by the pressing section, wherein
the pressure control section directs the pressing section so that the confining pressure at least some of the time during charging is higher than the confining pressure during discharging, and
a difference in the confining pressure between the charging and the discharging is reduced when the vehicle is caught in traffic congestion, compared to when the vehicle is running normally.

14. The charging system according to claim 13 , wherein, when the vehicle is caught in traffic congestion, the difference in the confining pressure between the charging and the discharging is reduced to zero.

15. The charging system according to claim 13 , further comprising a communicator in communication with a traffic congestion prediction system, and when a state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

16. The charging system according to claim 15 , wherein, when the state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced to zero.

17. A charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising:
a charging section that charges the all-solid-state battery,
a pressing section that applies confining pressure to the all-solid-state battery, and
a pressure control section that controls the confining pressure applied by the pressing section, wherein
the pressure control section directs the pressing section so that the confining pressure at least some of the time during charging is higher than the confining pressure during discharging, and
a difference in the confining pressure between the charging and the discharging is reduced when a switching time between the charging and the discharging is within 10 seconds.

18. The charging system according to claim 17 , further comprising a communicator in communication with a traffic congestion prediction system, and when a state of traffic congestion is predicted, the difference in the confining pressure between the charging and the discharging is reduced compared to when the vehicle is running normally.

19. The charging system according to claim 17 , wherein, when the switching time between the charging and the discharging is within 10 seconds, the difference in the confining pre

Assignees

• Toyota Motor Co Ltd

Inventors

• Ose Norihiro
• Sasaoka Tomoharu
• Hasegawa Hajime
• Kato Kazuhito
• Haga Kengo
• Kosaka Daichi

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• Y02T10/7005

  Cross-Sectional Technologies · mapped topic

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M10/0562

  Solid materials · CPC title