METHOD FOR PRODUCING SOLID ELECTROLYTE BATTERY

• US 20120216394A1
• Filed: 11/02/2009
• Published: 08/30/2012
• Est. Priority Date: 11/02/2009
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kawaoka, Hirokazu, Kitaura, Masayuki
• Application Number:
  US13/505,133
• Publication Number:
  US 20120216394A1
• Time in Patent Office: Days
• US Class Current: 29/623.2
• CPC Class Codes: H01M 10/0468 Compression means for stacks of electrodes and separators
• CPC Class Codes: H01M 10/049 Processes for forming or storing electrodes in the battery container
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0562 Solid materials
• 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 50/383 Flame arresting or ignition-preventing means
• CPC Class Codes: H01M 50/394 Gas-pervious parts or elements
• 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 producing a solid electrolyte battery that makes it possible to prevent foreign substance attachment to an electrode unit and press the electrode unit uniformly. A method for producing a solid electrolyte battery in which an outer case houses at least one electrode cell that has an electrode unit comprising at least a positive electrode layer, a solid electrolyte layer and a negative electrode layer stacked in this order, the method including the steps of: inserting the electrode cell in the outer case before pressing the electrode cell in a stacking direction in the electrode unit, and pressing the electrode cell from the outside of the outer case in the stacking direction in the electrode unit.

Claims

1. A method for producing a solid electrolyte battery in which an outer case houses at least one electrode cell that has an electrode unit comprising at least a positive electrode layer, a solid electrolyte layer and a negative electrode layer stacked in this order, the method comprising the steps of:

inserting the electrode cell in the outer case before pressing the electrode cell in a stacking direction in the electrode unit,

pressing the electrode cell from the outside of the outer case in the stacking direction in the electrode unit, and

sealing the outer case,

wherein a heat-resistant member which prevents the electrode cell from reaching a heating temperature in the sealing step, is present between the outer case and the electrode cell.

2. The method for producing the solid electrolyte battery according to claim 1, wherein the electrode cell comprises a stack of the electrode units.

3. The method for producing the solid electrolyte battery according to claim 1, wherein the electrode cell is pressed and at the same time heated in the pressing step.

4. The method for producing the solid electrolyte battery according to claim 3, wherein the pressing step doubles as a step of sealing the outer case.

5. The method for producing the solid electrolyte battery according to claim 1, wherein the step of sealing the outer case is present between the inserting step and the pressing step.

7. The method for producing the solid electrolyte battery according to claim 2, wherein the electrode cell is pressed and at the same time heated in the pressing step.

8. The method for producing the solid electrolyte battery according to claim 2, wherein the step of sealing the outer case is present between the inserting step and the pressing step.

9. The method for producing the solid electrolyte battery according to claim 3, wherein the step of sealing the outer case is present between the inserting step and the pressing step.

10. The method for producing the solid electrolyte battery according to claim 7, wherein the step of sealing the outer case is present between the inserting step and the pressing step.

11. The method for producing the solid electrolyte battery according to claim 7, wherein the pressing step doubles as a step of sealing the outer case.

6. (canceled)