ENERGY STORAGE APPARATUS AND ARTICLE OF MANUFACTURE

• US 20100067173A1
• Filed: 10/14/2009
• Published: 03/18/2010
• Est. Priority Date: 11/09/2005
• Status: Abandoned Application

• Current Assignee: Tesla Inc.
• Original Assignee: Maxwell Technologies Incorporated (Tesla Inc.)
• Inventors: Gisler, Laurent, Guillet, Dominique
• Application Number:
  US12/579,378
• Publication Number:
  US 20100067173A1
• Time in Patent Office: Days
• US Class Current: 361/502
• CPC Class Codes: H01G 11/28 arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
• CPC Class Codes: H01G 11/52 Separators
• CPC Class Codes: H01G 11/74 Terminals, e.g. extensions of current collectors
• CPC Class Codes: H01G 11/78 Cases; Housings; Encapsulations; Mountings
• 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: H01G 11/84 Processes for the manufacture of hybrid or EDL capacitors, or components thereof
• CPC Class Codes: H01G 9/06 Mounting in containers
• CPC Class Codes: H01G 9/10 Sealing, e.g. of lead-in wires
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors

Abstract

An energy storage apparatus and article of manufacture is disclosed. In one embodiment, the energy storage apparatus comprises a jelly roll, having a first and second sheet and a first and second separator member, and at least one terminal element. In another embodiment, an article of manufacture comprising forming a cylindrical housing and stamping a longitudinal indentation on an exterior surface of the cylindrical housing is disclosed. In one alternate embodiment, the longitudinal indentation is adapted to slowly fracture under pressure exerted on an interior surface of the cylindrical housing, thereby preventing catastrophic failure, such as for example an explosion.

Claims

1. An energy storage device, comprising:

(a) a jelly roll, comprising;

(i) a first sheet, having a top side and a bottom side, comprising;

(A) at least two electrode films, operatively coupled to a first current collector plate, wherein a first electrode film is disposed along the top side of the first sheet, wherein the second electrode film is disposed along the bottom side of the first sheet;

(ii) a second sheet, having a first side and a second side, comprising;

(A) at least two electrode films, operatively coupled to a second current collector plate, wherein a first electrode film is disposed along the first side of the second sheet, wherein a second electrode film is disposed along the second side of the second sheet.

(iii) a first separator member, having an upper side and a lower side, wherein the separator member upper side is operatively coupled to the first sheet second electrode film, which is disposed along the bottom side of the first sheet, wherein the separator member lower side is operatively coupled to the second sheet second electrode film, which is disposed along the second side of the second sheet;

(iv) a second separator member, having an inner side and an outer side, wherein the inner side of the second separator member is disposed along and operatively coupled to the first sheet first electrode film, which is disposed along the top side of the first sheet, and;

(b) at least one terminal element, having a proximate end and a distal end, wherein the proximate end is in electrical contact with the jelly roll and the-distal end protrudes therefrom the jelly roll.

2. The energy storage device of claim 1, wherein the jelly roll is adapted store at least 250 Farads.

3. The energy storage device of claim 2, further comprising a battery form factor housing.

4. The energy storage device of claim 3, wherein the housing comprises the aluminum.

5. The energy storage device of claim 4, wherein the battery form factor housing comprises:

(a) a diameter of approximately 33±

1 millimeter, and;

(b) a height of approximately 61.5±

2 millimeters.

6. The energy storage device of claim 4, wherein the battery form factor housing comprises:

(a) a diameter of approximately 25.2±

1 millimeter, and;

(b) a height of approximately 59.5 to 1.5 millimeters.

7. An article of manufacture, comprising:

(a) forming a cylindrical housing having an exterior surface and an interior surface, and;

(b) stamping a longitudinal indention oriented along a longitudinal axis, wherein the longitudinal indentation is stamped on the exterior surface of the cylindrical housing.

8. The article of manufacture of claim 7, wherein the longitudinal indentation is adapted to weaken the cylindrical housing under an exerted pressure, wherein the longitudinal indentation is further adapted to slowly fracture under a pressure exerted therein the cylindrical housing interior surface.

9. The article of manufacture of claim 8, wherein the cylindrical housing is further adapted to prevent a catastrophic explosion of the exterior surface of the cylindrical housing, whereby the longitudinal indentation is adapted to safely render the article of manufacture non-functional via slow fracture of the longitudinal indentation.

10. A means for storing electrical energy within a housing means, comprising:

(a) a jelly roll means, disposed inside the housing means, for storing electrical energy, and;

(b) a terminal means, responsive to the jelly roll means, for transferring electrical energy between the jelly roll means and an external contact.