IP Library Granted Patent US 9,385,395
Granted Patent B2
US 9,385,395 · App. 13/820,679 · Granted Jul 5, 2016

Continuous prismatic cell stacking system and method

Inventor: Yang Wu (Honolulu, HI)
Assignee: MICROVAST, INC.
H01M10/04H01M10/0404H01M10/0436H01M10/0525Y02T10/7011Y10T29/49108Y10T29/53135
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Quick Facts
Patent No.
US 9,385,395
App. No.
13/820,679
Granted
Jul 5, 2016
Kind
B2
Abstract

A continuous prismatic cell stacking system and method is disclosed. The system comprises: (a) devices on the system to supply a separator layer, a cathode layer, and an anode layer; and (b) one cutter on the frame for cathode layer and anode layer; and (c) conveyer system to convey the stacked cell. The conveyer system comprises a rotary disc and a transfer belt. The said rotary disc is round shape, or multi-equilateral shape, or track & field shape.

Claims (59)

1. A method of forming a battery stack comprising a plurality of stacked prismatic cell layers, comprising:

rotating a rotary disc from a first position to a plurality of stacking stations,

wherein the rotary disc is operable to make a complete rotation in a single direction,

wherein the rotary disk operates to support at least one of the plurality of prismatic cell layers,

wherein the plurality of prismatic cell layers comprises at least one cut prismatic cell layer and at least one continuous separator layer;

collecting a first cut prismatic cell layer or a first continuous separator layer onto the rotary disc to form a first battery stack;

collecting the first cut prismatic cell layer, the first continuous separator layer, a second cut prismatic cell layer, or a second continuous separator layer onto the first battery stack to form a second battery stack;

collecting the first cut prismatic cell layer, the first continuous separator layer, the second cut prismatic cell layer, or the second continuous separator layer onto the second battery stack to form a third battery stack,

wherein the first cut prismatic cell layer and the second cut prismatic cell layer are selected from an anode layer and a cathode layer, and

rotating the rotary disc in the single direction such that the third battery stack is transported to or past the first position.

2. The method of claim 1 , further comprising heating the second battery stack or the third battery stack to form an adhered battery stack.

3. The method of claim 1 , wherein collecting the first continuous separator layer or collecting the second continuous separator further comprises:

engaging a spool consisting of a continuous sheet of a separator layer;

engaging a holder to push and place the separator layer to pre-set positions; and

engaging a clamp to stabilize the separator layer in the pre-set positions.

4. The method of claim 1 , wherein collecting the first cut prismatic cell layer or collecting the second cut prismatic cell layer further comprises:

engaging a spool consisting of a continuous sheet of the prismatic cell layer;

engaging a holder to push and place the prismatic cell layer to pre-set positions;

engaging a clamp to stabilize the prismatic cell layer in the pre-set positions; and

engaging a cutter to form the first cut prismatic cell layer or the second cut prismatic cell layer.

5. The method of claim 1 , further comprising:

rotating the rotary disk such that the third battery stack is transported to the plurality of stacking stations;

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic cell layer, or the third continuous separator layer onto the third battery stack to form a fourth battery stack;

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic layer, the third continuous separator layer, a fourth cut prismatic cell layer, or a fourth continuous separator layer onto the fourth battery stack to form a fifth battery stack;

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic cell layer, the third continuous separator layer, the fourth cut prismatic cell layer, or the fourth continuous separator layer onto the fifth battery stack to form a sixth battery stack; and

wherein the sixth battery stack comprises at least the first continuous separator layer and the second continuous separator layer, and

wherein the second cut prismatic cell layer, the third cut prismatic cell layer, and the fourth cut prismatic cell layer are selected from the anode layer and the cathode layer.

6. The method of claim 5 ,

wherein the sixth battery stack consists of the first continuous separator layer, the first cut prismatic cell layer, the second continuous separator layer, the third continuous separator layer, the second cut prismatic cell layer, and the fourth continuous separator layer;

wherein the first cut prismatic cell layer comprises the anode layer; and

wherein the second cut prismatic cell layer comprises the cathode layer.

7. The method of claim 5 , further comprising heating the sixth battery stack to form an adhered sixth battery stack.

8. The method of claim 7 , further comprising cutting the adhered sixth battery stack to form a final battery stack.

9. The method of claim 8 , further comprising engaging a transfer belt to transport the final battery stack.

10. The method of claim 1 , wherein the rotary disk further comprises a round shape, a multi-equilateral shape, or a track & field shape.

11. The method of claim 1 , wherein the rotary disc and the plurality of stacking stations are arranged such that the rotary disc rotates in a vertical plane.

12. A method of forming a battery stack comprising a plurality of stacked prismatic cell layers, comprising:

rotating a rotary disc from a first position to a plurality of stacking stations,

wherein the rotary disc is operable to make a complete rotation in a single direction,

wherein the rotary disk operates to support at least one of the plurality of prismatic cell layers,

wherein the plurality of prismatic cell layers comprises at least one cut prismatic cell layer and at least one continuous separator layer;

collecting a first cut prismatic cell layer or a first continuous separator layer onto the rotary disc to form a first battery stack;

collecting the first cut prismatic cell layer, the first continuous separator layer, a second cut prismatic cell layer, or a second continuous separator layer onto the first battery stack to form a second battery stack;

collecting the first cut prismatic cell layer, the first continuous separator layer, the second cut prismatic cell layer, or the second continuous separator layer onto the second battery stack to form a third battery stack,

wherein the first cut prismatic cell layer and the second cut prismatic cell layer are selected from an anode layer and a cathode layer, and

rotating the rotary disc in the single direction such that the third battery stack is transported to or past the first position to the plurality of stacking stations;

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic cell layer, or the third continuous separator layer onto the third battery stack to form a fourth battery stack;

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic layer, the third continuous separator layer, a fourth cut prismatic cell layer, or a fourth continuous separator layer onto the fourth battery stack to form a fifth battery stack; and

collecting the second cut prismatic cell layer, the second continuous separator layer, the third cut prismatic cell layer, the third continuous separator layer, the fourth cut prismatic cell layer, or the fourth continuous separator layer onto the fifth battery stack to form a sixth battery stack,

wherein the sixth battery stack comprises at least the first continuous separator layer and the second continuous separator layer, and

wherein the second cut prismatic cell layer, the third cut prismatic cell layer, and the fourth cut prismatic cell layer are selected from the anode layer and the cathode layer.

13. The method of claim 12 ,

wherein the sixth battery stack consists of the first continuous separator layer, the first cut prismatic cell layer, the second continuous separator layer, the third continuous separator layer, the second cut prismatic cell layer, and the fourth continuous separator layer;

wherein the first cut prismatic cell layer comprises the anode layer; and

wherein the second cut prismatic cell layer comprises the cathode layer.

14. The method of claim 12 , further comprising heating the sixth battery stack to form an adhered sixth battery stack.

15. The method of claim 14 , further comprising cutting the adhered sixth battery stack to form a final battery stack.

16. The method of claim 15 , further comprising engaging a transfer belt to transport the final battery stack.

17. The method of claim 12 , wherein the rotary disk further comprises a round shape, a multi-equilateral shape, or a track & field shape.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Jun 24, 2026
From: ACQUIOM AGENCY SERVICES LLC
To: MICROVAST ADVANCED MATERIALS INC.; MICROVAST ADVANCED MEMBRANE INC.; MICROVAST, INC.
Reel/Frame 075075/0028 →
SECURITY INTEREST Recorded May 28, 2024
From: MICROVAST INC.
To: ACQUIOM AGENCY SERVICES LLC.
Reel/Frame 067554/0369 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2013
From: WU, YANG
To: MICROVAST, INC.
Reel/Frame 029916/0856 →
Continuity (2)
Provisional Application 61394284 · Oct 18, 2010
Related Publication 20130160283A1 · Jun 27, 2013