Battery structure

Patent metadata

Field	Value
Publication number	US-11145924-B2
Application number	US-201715727672-A
Country	US
Kind code	B2
Filing date	Oct 9, 2017
Priority date	Oct 9, 2017
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A battery structure is disclosed. The battery structure includes a first current collector layer, a first active material layer, a spacer layer, a first plastic frame, a second active material layer and a second current collector layer. The first active material layer is disposed on the first current collector layer. The spacer layer is disposed on the first active material and completely covers the top surface of the first active material layer. The first plastic frame is disposed on the side wall of the spacer layer and the top of the first plastic frame has a protruding part which extends to the top surface of the spacer. The second active material layer is disposed on the spacer layer and the protruding part. The second active material is isolated from the first active material via the space layer and the protruding part. The second current collector layer is disposed on the second active material layer.

First claim

What is claimed is:

1. A battery structure, comprising:
a first current collector layer;
a first active material layer, disposed on the first current collector layer;
a ceramic spacer layer, disposed on the first active material layer, the spacer layer completely covering a top surface of the first active material layer;
a first plastic frame, disposed on a side wall of the spacer layer, the first plastic frame having a protruding part, the protruding part extending inwardly over a top surface of the spacer layer and directly contacting the top surface of the spacer layer;
a second active material layer, disposed on the spacer layer and the protruding part and directly contacting the spacer layer and the protruding part, isolated from the first active material layer via the spacer layer and the protruding part, wherein the protruding part extends partly over the top surface of the spacer layer between the top surface of the spacer layer and a bottom surface of the second active material layer and beyond a peripheral surface of the spacer layer and a peripheral surface of the second active material layer; and

a second current collector layer, disposed on the second active material layer.

2. The battery structure of claim 1 , wherein portions of the first plastic frame covering the side wall of the spacer layer further extend to a side wall of the first active material layer.

3. The battery structure of claim 2 , wherein an area in a horizontal plane of the first active material layer is smaller than a horizontal plane of the first current collector layer to expose parts of the first current collector layer.

4. The battery structure of claim 3 , wherein a bottom of the first plastic frame is attached to the first current collector layer exposed from the first active material layer and the first plastic frame encloses the side wall of the spacer layer and the side wall of the first active material layer.

5. The battery structure of claim 1 , further comprising a second plastic frame interposed between the first plastic frame and the second current collector layer, wherein
a top of the second plastic frame is connected to the second current collector,
the second plastic frame encloses a periphery of the second active material layer, and
a bottom of the second plastic frame is connected to the first plastic frame.

6. The battery structure of claim 1 , further comprising a second plastic frame and a third plastic frame, wherein
the second plastic frame encloses a periphery of the second current collector,
a bottom of the second plastic frame is connected to a top of the third plastic frame, and
a bottom of the third plastic frame is connected to a top of the first plastic frame.

7. The battery structure of claim 6 , wherein the first plastic frame and the second plastic frame have a better heterogeneous surface adhesion than the third plastic frame, and the third plastic frame has a best homogeneous surface adhesion of the first plastic frame, the second plastic frame and the third plastic frame.

8. The battery structure of claim 1 , wherein the first current collector or the second current collector is a conductive surface of a circuit board.

9. The battery structure of claim 1 , wherein materials of the first plastic frame are selected from polyimide, epoxy, acrylic resin or silicone.

10. The battery structure of claim 5 , wherein materials of the first plastic frame and the second plastic frame are selected from polyimide, epoxy, acrylic resin or silicone.

11. The battery structure of claim 6 , wherein materials of the first plastic frame, the second plastic frame and the third plastic frame are selected from polyimide, epoxy, acrylic resin or silicone.

12. The battery structure of claim 1 , wherein the first active material layer, the second material layer and the spacer layer absorb an electrolyte, and the electrolyte is liquid electrolyte, gel-type electrolyte or solid state electrolyte.

13. The battery structure of claim 1 , further comprising an aluminum foil pouch to accommodate and enclose the battery.

14. The battery structure of claim 1 , wherein an outer surface of the first current collector layer and the second current collector layer has a protection layer.

15. The battery structure of claim 14 , wherein materials of protection layer are selected from polyimide, epoxy, acrylic resin or silicone.

16. The battery structure of claim 1 , wherein the spacer layer further extends to all of side walls adjacent to the top surface of the first active material layer.

Assignees

• Prologium Tech Co Ltd
• Prologium Holding Inc

Inventors

• Yang Szu-Nan

Classifications

• H01M10/052 Primary

  Li-accumulators · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M50/486

  Organic material · CPC title

• H01M50/483

  Inorganic material · CPC title

• H01M50/474

  characterised by their position inside the cells · CPC title