Frame for secondary battery and battery module comprising the same

Patent metadata

Field	Value
Publication number	US-2016248135-A1
Application number	US-201415031809-A
Country	US
Kind code	A1
Filing date	Oct 29, 2014
Priority date	Oct 30, 2013
Publication date	Aug 25, 2016
Grant date	—

Abstract

In the present disclosure, disclosed are a frame for secondary batteries, which prevents gas from flowing into a cooling channel or a duct connected to it, when such gas is generated from secondary batteries; and a battery module comprising the same. A frame for secondary batteries according to the present disclosure comprises: an upper cooling plate which is plate-shaped and made of thermally conductive material; a lower cooling plate which is plate-shaped and made of thermally conductive material and is placed spaced apart from the upper cooling plate by a predetermined distance to face the upper cooling plate so that a channel is formed in a space between the upper cooling plate and the lower cooling plate; and a main frame which comprises four unit frames with both ends being connected to each other, encompasses the outer peripheral portions of the upper cooling plate and the lower cooling plate, allows an outer peripheral portion of a pouch-type secondary battery to be mounted thereon, comprises openings formed in the side surfaces of two of the unit frames for the channel to be opened, and has uneven parts, corresponding to each other, respectively formed on upper and lower portions of at least two of the unit frames.

First claim

1 . A frame for secondary batteries, comprising:
an upper cooling plate which is plate-shaped and made of thermally conductive material; a lower cooling plate which is plate-shaped and made of thermally conductive material and is arranged to be spaced apart from the upper cooling plate by a predetermined distance to face the upper cooling plate so that a channel is formed in a space between the upper cooling plate and the lower cooling plate; and a main frame which comprises four unit frames with both ends being connected to each other, encompasses the outer peripheral portions of the upper cooling plate and the lower cooling plate, allows an outer peripheral portion of a pouch-type secondary battery to be mounted thereon, comprises openings formed in the side surfaces of two of the unit frames for the channel to be opened, and has uneven parts, corresponding to each other, respectively formed on upper and lower portions of at least two of the unit frames.

2 . The frame for secondary batteries of claim 1 , wherein the uneven parts are configured to couple mutually with uneven parts of adjacent frames for secondary batteries and to seal the coupled portions, when the frames are stacked vertically.

3 . The frame for secondary batteries of claim 1 , wherein the uneven parts are formed, at least, on the unit frames in which the openings are formed.

4 . The frame for secondary batteries of claim 1 , wherein the uneven parts are formed to elongate in the longitudinal direction of the unit frames.

5 . The frame for secondary batteries of claim 4 , wherein the uneven parts are formed to extend from one end to the other end of the unit frames in which the openings are formed.

6 . The frame for secondary batteries of claim 1 , wherein two or more of the uneven parts are formed respectively in upper portions and lower portions of the unit frames.

7 . The frame for secondary batteries of claim 6 , wherein the two or more uneven parts are arranged in the direction perpendicular to the longitudinal direction of the unit frames.

8 . The frame for secondary batteries of claim 1 , wherein the uneven parts comprise both convex parts and concave parts formed respectively at upper portions and lower portions of the unit frames.

9 . The frame for secondary batteries of claim 1 , wherein the main frame comprises mounting parts formed on upper portions of the unit frames on which the uneven parts are formed, to allow a sealing portion of the pouch-type secondary battery to be bent and mounted thereon.

10 . The frame for secondary batteries of claim 1 , wherein the main frame comprises sealing members on the uneven parts.

11 . The frame for secondary batteries of claim 10 , wherein the sealing members are made of rubber material.

12 . The frame for secondary batteries of claim 1 , wherein a venting channel through which gas leaked from the pouch-type secondary battery flows is physically separated from the channel between the upper cooling plate and the lower cooling plate, when the frames for secondary batteries are stacked vertically.

13 . The frame for secondary batteries of claim 1 , wherein the main frame comprises a venting part, on the side surface of the unit frame in which no opening is formed, to open the space storing the pouch-type secondary batteries.

14 . The frame for secondary batteries of claim 13 , wherein the openings are formed in the left and right side surfaces of the main frame, and the venting parts are formed at the front and rear side surfaces of the main frame.

15 . The frame for secondary batteries of claim 1 , wherein the main frame is configured to mount one pouch-type secondary battery on an upper portion of the upper cooling plate, and another pouch-type secondary battery on a lower portion of the lower cooling plate.

16 . The frame for secondary batteries of claim 1 , wherein the upper cooling plate and the lower cooling plate are made of aluminum material.

17 . A battery module comprising the frame for secondary batteries according to claim 1 .

18 . A battery pack comprising the frame for secondary batteries according to claim 1 .

19 . A vehicle comprising the frame for secondary batteries according to claim 1 .

Assignees

• Lg Chemical Ltd

Inventors

• Kim Ki-Youn
• Seong Jun-Yeob
• Eom Young-Sop
• Yu Sung-Chun
• Kang Dal-Mo

Classifications

• H01M10/6554

  Rods or plates · CPC title

• H01M10/625

  Vehicles · CPC title

• H01M2220/20

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

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M10/6557 Primary

  arranged between the cells · CPC title