Battery pack deactivation system

Abstract

To provide a battery pack deactivation system that can efficiently deactivate batteries. [Solution] The battery pack deactivation system of the present invention comprises a battery pack, a deactivation fluid circulation device connected to a deactivation fluid inlet and a deactivation fluid outlet provided on the battery pack for circulating the deactivation fluid, and a gas collection device connected to a gas outlet provided on the battery pack.

Description

Technical Field

[0001] The present invention relates to a battery pack deactivation system.

Background Art

[0002] Patent Document 1 discloses a method for treating a battery in which after making holes in the exterior of a battery cell, a deactivation treatment liquid is caused to flow in.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the method for treating a battery disclosed in Patent Document 1, when deactivation is performed for each battery cell, in the case of a large-sized battery, the deactivation treatment takes time and deactivation cannot be performed efficiently.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a battery pack deactivation system capable of performing deactivation efficiently. 0]

Means for Solving the Problems

[0006] In order to solve the above-described problems and achieve the object, a battery pack deactivation system according to the present invention includes a battery pack, a deactivation liquid circulation device connected to a deactivation liquid injection port and a deactivation liquid discharge port provided in the battery pack for circulating a deactivation liquid, and a gas collection device connected to a gas discharge port provided in the battery pack.

Effects of the Invention

[0007] The battery pack deactivation system according to the present invention has the effect of efficiently deactivating the battery pack by deactivating the entire battery pack. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a diagram showing a schematic configuration of a battery pack deactivation system according to an embodiment. [Modes for carrying out the invention]

[0009] The following describes an embodiment of the battery pack deactivation system according to the present invention. However, the present invention is not limited to this embodiment.

[0010] Figure 1 is a diagram showing the schematic configuration of a battery pack deactivation system 1 according to an embodiment. As shown in Figure 1, the battery pack deactivation system 1 according to an embodiment consists of a battery pack 2, a deactivation liquid circulation device 3, a deactivation liquid tank 4, a gas collection device 5, and a gas collection tank 6, etc.

[0011] The battery pack 2 is provided with a deactivating fluid injection port 21, which is a deactivating fluid injection port, a deactivating fluid discharge port 22, which is a deactivating fluid discharge port, and a gas discharge port 23, which is a gas discharge port. The deactivating fluid injection port 21 is located at the rear of the battery pack 2. The deactivating fluid discharge port 22 is located at the front of the battery pack 2. Thus, in the battery pack deactivation system 1 according to this embodiment, the distance between the deactivating fluid injection port 21 and the deactivating fluid discharge port 22 is set in the front-to-back direction of the battery pack 2.

[0012] The other end of a deactivating fluid circulation hose 301, one end of which is connected to the deactivating fluid circulation device 3, is connected to the deactivating fluid injection port 21. The other end of a deactivating fluid circulation hose 302, one end of which is connected to the deactivating fluid circulation device 3, is connected to the deactivating fluid discharge port 22. The deactivating fluid circulation device 3 is connected to the deactivating fluid injection port 21 and the deactivating fluid discharge port 22 via the deactivating fluid circulation hoses 301 and 302, and circulates the deactivating fluid 100 so that it passes through the battery pack 2. For example, saltwater is used as the deactivating fluid 100.

[0013] Below the deactivating liquid circulation device 3, a deactivating liquid tank 4 is positioned to contain the deactivating liquid 100. The lower part of the deactivating liquid circulation device 3 is provided with a suction connection section 31 to which a suction pipe 311 for drawing in the deactivating liquid 100 contained in the deactivating liquid tank 4 is connected, and a drainage connection section 32 to which a drainage pipe 312 for draining the deactivating liquid 100 from the deactivating liquid tank 4 is connected.

[0014] In the battery pack 2, the gas discharge port 23 is located at the top of the battery pack 2. The other end of a gas hose 501, one end of which is connected to the gas introduction connection 51 of the gas collection device 5, is connected to the gas discharge port 23. The gas collection device 5 is equipped with a gas filter and a gas discharge connection 52 to which an exhaust pipe 502 for discharging gas to the gas collection tank 6 is connected.

[0015] In the battery pack deactivation system 1 according to this embodiment, the deactivating liquid circulation device 3 draws in the deactivating liquid 100 from the deactivating liquid tank 4 through the suction pipe 311 and introduces it into the battery pack 2 through the deactivating liquid circulation hose 301 and the deactivating liquid injection port 21. The deactivating liquid 100 that flows through the battery pack 2 from the rear to the front is then discharged into the deactivating liquid circulation hose 302 through the deactivating liquid discharge port 22. The deactivating liquid 100 is then sent to the deactivating liquid circulation device 3 through the deactivating liquid circulation hose 302 and discharged into the deactivating liquid tank 4 through the drain pipe 312. In this way, in the battery pack deactivation system 1 according to this embodiment, the deactivating liquid 100 is circulated through the battery pack 2 by the deactivating liquid circulation device 3 and left for a certain period of time to deactivate the battery.

[0016] Also, the gas generated in the battery pack 2 by circulating the inactivation liquid 100 is discharged from the gas discharge through-hole 23 to the gas hose 501, passes through the gas hose 501, and is introduced into the gas collection device 5 from the gas introduction connection part 51. The gas introduced into the gas collection device 5 passes through the exhaust pipe 502 from the gas discharge connection part 52 via the gas filter and is discharged and collected in the gas collection tank 6.

[0017] In the battery pack inactivation system 1 according to the embodiment, the housing of the battery pack 2 itself is utilized as an inactivation tank, and the inactivation liquid 100 stored in the inactivation liquid tank 4 is circulated by the inactivation liquid circulation device 3 from the outside of the battery pack 2 to inactivate the battery. Thereby, the battery pack inactivation system 1 according to the embodiment can perform inactivation efficiently by inactivating the entire battery pack 2. Further, in the battery pack inactivation system 1 according to the embodiment, as the amount of the inactivation liquid 100, it is possible to cope with a significantly smaller amount such as the amount flowing through the inside of the housing of the battery pack 2, the amount flowing through the inactivation liquid circulation hoses 301 and 302, and the amount stored in the inactivation liquid tank 4.

Explanation of Reference Numerals

[0018] 1 Battery pack inactivation system 2 Battery pack 3 Inactivation liquid circulation device 4 Inactivation liquid tank 5 Gas collection device 6 Gas collection tank 21 Inactivation liquid injection through-hole 22 Inactivation liquid discharge through-hole 23 Gas discharge through-hole 31 Liquid absorption connection part 32 Liquid discharge connection part 51 Gas introduction connection part 52 Gas discharge connection part 100 Inactivation liquid 301, 302 Inactivation liquid circulation hoses 311 Liquid absorption pipe 312 Liquid discharge pipe 501 Gas hose 502 Exhaust pipe

Claims

[Claim 1] Battery pack and A deactivating fluid circulation device is connected to the deactivating fluid inlet and deactivating fluid outlet provided in the battery pack, and circulates the deactivating fluid. A gas collection device connected to a gas outlet provided in the battery pack, A battery pack deactivation system characterized by comprising the following features.

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