BATTERY AND MANUFACTURE METHOD THEREOF

• US 20140045014A1
• Filed: 07/18/2013
• Published: 02/13/2014
• Est. Priority Date: 08/09/2012
• Status: Active Grant

• Current Assignee: ASUSTek Computer, Inc.
• Original Assignee: ASUSTek Computer, Inc.
• Inventors: Huang, Nung-Te, Shen, Yu-Cheng
• Granted Patent: US 9,583,782 B2
• Time in Patent Office: Days
• US Class Current: 429/94
• CPC Class Codes: H01M 10/0431 Cells with wound or folded electrodes H01M10/045 takes precedence
• CPC Class Codes: H01M 10/0587 of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
• CPC Class Codes: H01M 50/103 prismatic or rectangular H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/267 having means for adapting to batteries or cells of different types or different sizes
• 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 29/49108 Electric battery cell making

Abstract

A battery includes a casing and a plurality of cell coils. The casing includes a bottom and a top, the bottom or the top surface of the casing are not symmetrical with each other and the multiple cell coils are placed in the casing and are electrically connected to each other. Each of the cell coils includes a positive node, a negative node and an insulation sheet, and the insulation sheet is between the positive node and the negative node. An outer diameter of the cell coil changes along with the shape of the casing. A manufacture method of a battery is provided.

Claims

1. A battery, comprising:

a casing including a bottom surface and a top surface, wherein the bottom surface and the top surface of the casing are not symmetrical with each other;

a plurality of cell coils disposed in the casing and electrically connected to each other, wherein each of the cell coil includes at least a positive node, at least a negative node, and at least an insulation sheet, the insulation sheet is between the positive node and the negative node, and an outer diameter of the cell coil changes along with the shape of the casing.

2. The battery according to claim 1, wherein a winding density of the each cell coil changes along a winding direction of the corresponding cell coil.

3. The battery according to claim 1, wherein a winding density of at least a cell coil along a winding direction is different from a winding density along the direction that the cell coil winds along with the top or bottom surface of the casing.

4. The battery according to claim 1, wherein the outer diameter of each of the cell coils increases with winding layers of the cell coil.

5. The battery according to claim 1, wherein a shape of a cross section of the cell coil is appropriate for an internal line of the casing.

6. The battery according to claim 1, wherein winding directions of at least two cell coils are opposite to each other.

7. The battery according to claim 6, wherein the two cell coils are wounded with the same positive nodes, the same negative nodes and the same insulation sheets.

8. The battery according to claim 1, wherein the battery further includes:

at least a positive outputting part electrically connected to the positive node of the cell coil; and

at least a negative outputting part electrically connected to the negative node of the cell coil.

9. The battery according to claim 8, wherein a pair of the positive outputting part and the negative outputting part are disposed at a same cell coil.

10. A manufacturing method of a battery, wherein the battery is assembled to an electronic device, the manufacturing method of the battery comprising following steps:

providing a casing with an accommodating space and required power of the electronic device;

overlapping and winding a positive node, a negative node and an insulation sheet to form a cell coil; and

configuring the cell coil in the casing to make an outer diameter of the cell coil appropriate for the shape of the casing and the bottom surface and the top surface of the casing are not symmetrical with each other.

11. The manufacturing method of the battery according to claim 10, wherein the casing is divided to a first area and at least a second area, the first area has a first height, the second area has at least a second height, the first height is larger than the second height, and the manufacturing method of the battery further includes:

configuring the cell coil in the first area;

determining whether the power provided by the cell coil meets the required power of the electronic device when the outer diameter of the cell coil in the first area appropriate for the first height of the casing; and

configuring another cell coil in the second area when the power provided by the cell coil is less than the required power of the electronic device.

12. The manufacturing method of the battery according to claim 10, wherein the manufacturing method further includes:

connecting at least a positive outputting part and at least a negative outputting part to the cell coil.