Method for manufacturing an energy store

• US 10,116,014 B2
• Filed: 12/03/2013
• Issued: 10/30/2018
• Est. Priority Date: 01/23/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Bader, Maximilan Oscar, Schmiederer, Dirk, Raisch, Sven Robert, Tuechert, Carsten
• Primary Examiner(s): Dignan, Michael L
• Application Number:
  US14/762,718
• Publication Number:
  US 20150357690A1
• Time in Patent Office: 1,792 Days
• 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 10/058 Construction or manufacture
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/615 Heating or keeping warm
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: H01M 50/204 Racks, modules or packs for multiple batteries or multiple cells
• CPC Class Codes: H01M 50/224 Metals
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/4911 including sealing

Abstract

A method for manufacturing an electrochemical energy store, includes: a) providing a temperature control plate, the temperature control plate at least partially including a heat-conducting material, and at least one contact area of the temperature control plate being deformable or transferable into a deformable state with the aid of an energy input; b) if necessary, bringing at least one contact area of the temperature control plate into a deformable state with the aid of an energy input; c) applying at least one cell to at least one contact area; and d) setting at least the at least one contact area of the temperature control plate. Also described is an electrochemical energy store.

Claims

1. A method for manufacturing an electrochemical energy store, the method comprising:

providing a temperature control plate made of plastic, the temperature control plate at least partially including a heat-conducting material, and at least one contact area of the temperature control plate being plastically deformable;

bringing the at least one contact area into a deformable state by applying to the at least one contact area a pressure of greater than 0.1 N/cm² for a time period of less than one hour;

while the at least one contact area is in the deformable state, applying a housing of at least one cell to the at least one contact area, and deforming the at least one contact area by the applying of the housing of the at least one cell to the at least one contact area to adapt a shape of the at least one contact area to the housing of the at least one cell, the applying of the housing of the at least one cell to the at least one contact area being a pressure-based application of the housing of the at least one cell to the at least one contact area in which the housing of the at least one cell is pressed into a material of the at least one contact area to deform the at least one contact area to adapt the at least one contact area to the shape of the housing of the at least one cell; and

hardening at least the at least one contact area of the temperature control plate after the deforming to set the at least one contact area in the adapted shape.

2. The method of claim 1, wherein a temperature control plate is provided which at least partially includes an electrically insulating material.

3. The method of claim 1, wherein the temperature control plate is at least partially made of a material which is selected from the group including polyethylene, polypropylene, polyamide, polybutylene terephthalate, polyphenylene sulfide, polycarbonate, polyurethane.

4. The method of claim 1, wherein at least one section of the temperature control plate provided for temperature control is formed of a plastic compound, which includes at least one additive for increasing the thermal conductivity.

5. The method of claim 1, wherein a heat-conducting medium is situated between at least one contact area of the temperature control plate and the housing of the at least one cell.

6. The method of claim 5, wherein the heat-conducting medium is electrically insulating.

7. The method of claim 5, wherein the heat-conducting medium has a breaking elongation in a range of greater than or equal to 10%.

8. The method of claim 1, wherein housings of multiple cells are applied to the temperature control plate.

9. The method of claim 1, wherein the hardening is achieved by passive cooling.

10. The method of claim 1, wherein the hardening is achieved by a cross-linking reaction of the plastic.

11. The method of claim 10, wherein the cross-linking reaction is triggered by applying energy.

12. The method of claim 1, wherein the deforming step includes plastically deforming the at least one contact area to adapt the shape of the at least one contact area to a shape of the housing of the at least one cell.

13. The method as recited in claim 1, wherein the housing of the at least one cell is a plastic housing.

14. The method as recited in claim 1, wherein the housing of the at least one cell is a metal housing.

15. The method as recited in claim 14, wherein the metal housing is an aluminum housing.

16. The method as recited in claim 1, wherein an anode, a cathode, active material, and electrolyte are in the housing of the at least one cell.

17. An energy store, comprising:

an electrochemical energy store arrangement, including;

a temperature control plate made of plastic, the temperature control plate at least partially including a heat-conducting material, and at least one contact area of the temperature control plate being plastically deformable;

at least one cell housed in a housing, the housing of the at least one cell having been applied to at least one contact area of the temperature control plate while the housing of the at least one contact area is in a deformable state, the at least one contact area being brought into a deformable state by applying, to the at least one contact area, a pressure of greater than 0.1 N/cm² for a time period of less than one hour, the at least one contact area being deformed by the housing of the at least one cell to adapt a shape of the at least one contact area to the housing of the at least one cell, the at least one contact area being hardened to set the at least one contact area in the adapted shape, the applying of the housing of the at least one cell to the at least one contact area being a pressure-based application of the housing of the at least one cell to the at least one contact area in which the housing of the at least one cell is pressed into a material of the at least one contact area to deform the at least one contact area to adapt the at least one contact area to the shape of the housing of the at least one cell.

18. The energy store as recited in claim 17, wherein the housing of the at least one cell is a plastic housing.

19. The energy store as recited in claim 17, wherein the housing of the at least one cell is a metal housing.

20. The energy store as recited in claim 19, wherein the metal housing is an aluminum housing.

21. The energy store as recited in claim 17, wherein an anode, a cathode, active material, and electrolyte are in the housing of the at least one cell.