ELECTRICITY STORAGE MODULE

• US 20160233476A1
• Filed: 09/04/2014
• Published: 08/11/2016
• Est. Priority Date: 09/13/2013
• Status: Active Grant

• Current Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation), Sumitomo Electric Industries Limited (Sumitomo Corporation), Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation), Sumitomo Electric Industries Limited (Sumitomo Corporation), Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Inventors: OKAMOTO, Ryoya, HIRAMITSU, Hiroomi
• Granted Patent: US 10,608,227 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01G 11/12 Stacked hybrid or EDL capacitors
• CPC Class Codes: H01G 11/76 specially adapted for integration in multiple or stacked hybrid or EDL capacitors
• CPC Class Codes: H01G 11/82 Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0585 of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/262 with fastening means, e.g. locks
• CPC Class Codes: H01M 50/507 comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• CPC Class Codes: H01M 50/509 characterised by the type of connection, e.g. mixed connections
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

An electricity storage module includes a layered object obtained by layering power storage elements each having positive and negative foil-shaped lead terminals that project in an outward direction from an end portion, and connection members that connect the lead terminals of adjacent power storage elements to each other. An insulating holding member is arranged between the layered object and the connection members. Connection member holding portions that hold the connection members on the surface on the side opposite to the surface that opposes the layered object are provided on the insulating holding member, and slits are provided on the insulating holding member so as to extend along edge portions of the connection members held by the connection member holding portions. The lead terminals are connected to the connection members by being inserted through the slits and folded over onto the connection members.

Claims

1. An electricity storage module comprising:

a layered object in which a plurality of power storage elements each having positive and negative foil-shaped lead terminals that project in an outward direction from an end portion are layered such that the lead terminals are arranged in pairs of equal polarity, the pairs of lead terminals being arranged with alternating polarities;

connection members that each connect the lead terminals of adjacent power storage elements to each other, and each have a shape in which a first connection portion and a second connection portion that are provided parallel with each other are coupled by coupling portions at respective end portions; and

an insulating holding member that is arranged between the layered object and the connection members, has connection member holding portions that hold the connection members on a surface on a side opposite to a surface that opposes the layered object, and has slits provided so as to extend along edge portions of the connection members held by the connection member holding portions,

wherein the lead terminals are connected to the connection members by being inserted through the slits and folded over onto the connection members, and

adjacent lead terminals having the same polarity are connected in parallel by the first connection portions and the second connection portions, and lead terminals that have different polarities and are connected in parallel in a first connection portion and a second connection portion are connected in series by the coupling portions.

3. The electricity storage module according to claim 1, wherein the connection member holding portions are wall portions provided so as to extend along the edge portions of the connection members.

4. The electricity storage module according to claim 1, wherein the connection member holding portions are elastic locking pieces capable of locking the edge portions of the connection members.

5. The electricity storage module according to claim 1, wherein insertion guide portions for guiding insertion of the lead terminals into the slits are provided in opening edge portions of the slits on a side that opposes the layered object.

6. The electricity storage module according to claim 1, wherein voltage detection lines are connected to the connection members.

7. The electricity storage module according to claim 3, wherein insertion guide portions for guiding insertion of the lead terminals into the slits are provided in opening edge portions of the slits on a side that opposes the layered object.

8. The electricity storage module according to claim 4, wherein insertion guide portions for guiding insertion of the lead terminals into the slits are provided in opening edge portions of the slits on a side that opposes the layered object.

9. The electricity storage module according to claim 3, wherein voltage detection lines are connected to the connection members.

10. The electricity storage module according to claim 4, wherein voltage detection lines are connected to the connection members.

11. The electricity storage module according to claim 5, wherein voltage detection lines are connected to the connection members.

2. (canceled)