Battery Module and Battery Pack Having the Same

Abstract

There is provided a battery module, in which a relatively wide contact area between an end plate and a lifting device may be secured when the battery module is elevated, the rigidity of the end plate may be sufficiently secured when the battery module is elevated, while forming a relatively thin end plate. The battery module includes a cell stack provided by stacking a plurality of battery cells, a module case accommodating the cell stack, an end plate disposed on front side and rear side of the module case, and a lifting support portion disposed on the end plate and having a support surface in surface contact with a lifting device.

What is claimed is: 
     
         1 . A battery module comprising:
 a cell stack provided by stacking a plurality of battery cells;   a module housing accommodating the cell stack; and   a lifting support portion disposed on the module housing and having a support surface in surface contact with a lifting device,   wherein a lower portion of the support surface is connected to a central reinforcing rib extending vertically to increase rigidity of the support surface.   
     
     
         2 . The battery module of  claim 1 , wherein the support surface is provided as a horizontal surface, and a lower portion of the support surface has an open structure. 
     
     
         3 . The battery module of  claim 1 , wherein the lifting support portion comprises a space portion exposed externally on the module housing. 
     
     
         4 . The battery module of  claim 3 , wherein the space portion comprises:
 an inner space provided under the support surface and configured to fit a contact portion of the lifting device in the inner space; and   an upper open space provided by penetrating through an outer end of the support surface in a vertical direction and configured to fit a vertical extension portion of the lifting device extending in the vertical direction from one end of the contact portion of the lifting device in the upper open space,   wherein the inner space and the upper open space communicate with each other.   
     
     
         5 . The battery module of  claim 4 , wherein the upper open space is respectively provided on both sides of the inner space, in such a manner that a pair of lifting device enters. 
     
     
         6 . The battery module of  claim 5 , wherein the central reinforcing rib is disposed on a center of the inner space. 
     
     
         7 . The battery module of  claim 6 , wherein the module housing comprises a module case accommodating the cell stack and an endplate disposed on front side and rear side of the module case, and
 the central reinforcing rib is formed in parallel with a reinforcing rib provided on the end plate.   
     
     
         8 . The battery module of  claim 1 , wherein the module housing comprises a module case accommodating the cell stack and an endplate disposed on front side and rear side of the module case,
 the module case is configured to cover an upper surface of the end plate, and   the module case and the upper surface of the end plate are fastened to each other.   
     
     
         9 . The battery module of  claim 8 , wherein a connector is disposed on an upper surface of the module case. 
     
     
         10 . The battery module of  claim 1 , wherein a thickness of the support surface in a front-rear direction has a value of 5 mm to 8 mm, and a width of the support surface in a left-right direction has a value of 10 mm to 30 mm. 
     
     
         11 . The battery module of  claim 10 , wherein a thickness of a portion in a front-rear direction, on which the lifting device contacts the support surface, has a value of 5 mm or more, and a width of the portion in a left-right direction has a value of 10 mm or more. 
     
     
         12 . The battery module of  claim 1 , wherein the module housing comprises a module case accommodating the cell stack and an endplate disposed on front side and rear side of the module case, and
 the end plate is provided with a reinforcing rib having a quadrangular grid shape formed in vertical and horizontal directions, to increase rigidity.   
     
     
         13 . The battery module of  claim 1 , wherein the module housing comprises a module case accommodating the cell stack and an endplate disposed on front side and rear side of the module case, and
 the end plate is provided with a reinforcing rib having a hexagonal grid shape, to increase rigidity.   
     
     
         14 . A battery pack comprising:
 the battery module of  claim 1 ; and   a pack housing accommodating the battery module,   wherein the lifting support portion is disposed to face a wall surface of the pack housing.   
     
     
         15 . The battery pack of  claim 14 , further comprising:
 a frame supporting the battery module;   wherein the module housing comprises a module case accommodating the cell stack and an end plate disposed on front side and rear side of the module case, and   wherein the module case of the battery module is provided with a flange supported by the frame.