Module battery

• US 20040036444A1
• Filed: 06/26/2003
• Published: 02/26/2004
• Est. Priority Date: 07/04/2002
• Status: Abandoned Application

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Oogami, Etsuo
• Application Number:
  US10/603,782
• Publication Number:
  US 20040036444A1
• Time in Patent Office: Days
• US Class Current: 320/110
• CPC Class Codes: H01M 50/178 for pouch or flexible bag cells
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/548 on opposite sides of the cell
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: H01M 50/562 characterised by the material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A module battery which includes battery packs each constituted of battery cells and a packing case. Each of the battery cells has a power generating element sealed in a film and a pair of electrode tabs connected thereto. The packing case is provided with an opening for allowing the electrode tabs of the battery cell to extend out of the packing case.

Claims

1. A module battery comprising:

a battery pack comprising;

at least one battery cell having a power generating element sealed in a film and a pair of electrode tabs connected to the power generating element; and

a packing case for accommodating the battery cell,

wherein the packing case is provided with an opening for allowing the electrode tabs of the battery cell in the packing case to extend out of the packing case.

6. The module battery according to claim 1, wherein

the packing case is comprised of a pair of case halves which sandwich and hold the battery cell.

7. The module battery according to claim 6, wherein

at least one of the case halves is formed to have a locate pin, and the battery cell is provided with a through-hole to which the locate pin is fitted.

8. The module battery according to claim 6, wherein

the case halves are symmetrically formed with respect to a plane.

2. A module battery comprising:

a plurality of battery packs each comprising;

at least one battery cell having a power generating element sealed in a film and a pair of electrode tabs connected to the power generating element; and

a packing case for accommodating the battery cell, wherein the battery packs are stacked on each other; and

a battery pack holder for holding the stacked battery packs together,

wherein each of the packing cases of the battery packs is provided with an opening for allowing the electrode tab of the battery cell in the packing case to extend out of the packing case, and

the battery pack holder covers all the openings of the packing cases to make the stacked battery packs air tight.

3. The module battery according to claim 2, wherein

space is provided between the battery packs adjacent to each other.

4. The module battery according to claim 3, wherein

the space is formed to allow fluid to flow therethrough and at least upstream region of the space is formed to be wider than the other region of the space.

5. The module battery according to claim 3, wherein

the packing case of the battery pack is formed to have a cooling fin extending into the space.

9. The module battery according to claim 2, wherein

each of the packing cases of the battery packs is provided with a flange having sides to be aligned as the packing cases are stacked.

10. The module battery according to claim 2, wherein

each of the packing cases of the battery packs is provided with a flange serving as a spacer to provide space between the adjacent battery packs as the packing cases are stacked.