Battery cell, battery and electronic device

A cell and battery technology, applied in the direction of small flat batteries/batteries, secondary battery manufacturing, battery pack components, etc., can solve the problems of battery space waste, affecting battery capacity, side sealing and top surface folding, etc., to achieve The effect of improving space utilization and increasing battery capacity

Pending Publication Date: 2020-10-16
DONGGUAN NVT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned packaging method is applied to a double-folded battery (that is, a battery that is folded twice on the side sealing edge), since the side sealing edge is folded twice, the side sealing edge changes from the original single-layer structure to a double-layer structure. In this way, the part of th

Method used

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  • Battery cell, battery and electronic device
  • Battery cell, battery and electronic device
  • Battery cell, battery and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] ginseng Figure 7 , a battery 10 includes a cell 11 and a circuit board 12 .

[0075] ginseng figure 1 and figure 2 , the battery cell 11 includes a packaging bag 111 . The packaging bag 111 includes a main body 112 , a top seal 113 and two opposite side seals 114 .

[0076] ginseng figure 2 , the main body 112 includes a top surface 1121 , a bottom surface 1122 and a side surface 1123 . The bottom surface 1122 faces away from the top surface 1121 . The side surface 1123 is connected between the top surface 1121 and the bottom surface 1122 . In Embodiment 1, the main body portion 112 is a rectangular parallelepiped. In other embodiments, the main body portion 112 has a regular structure such as a column or other irregular structures.

[0077] ginseng figure 2 , the top sealing portion 113 extends from the top surface 1121 . Each side sealing portion 114 extends from the side surface 1123 and is connected to the top sealing portion 113 .

[0078] In Example...

Embodiment 2

[0087] The difference between embodiment 2 and embodiment 1 lies in the shape of the first notch 1144 .

[0088] In Example 2, refer to Figure 8 , the first notch 1144 is arc-shaped.

Embodiment 3

[0090] The difference between embodiment 3 and embodiment 2 is that, refer to Figure 9 In Embodiment 3, a second notch 115 is opened at the junction of the second subsection 1143 and the top sealing portion 113 . Wherein, the projections of the top sealing portion 113 and the part of the second subsection 1143 folded toward the top surface 1121 are all located in the top surface 1121 .

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PUM

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Abstract

The invention provides a battery cell. The battery cell comprises a packaging bag, the packaging bag comprises a main body part, a top sealing part and a side sealing part. The main body part comprises a top surface, a bottom surface and side surfaces; and the top sealing part extends out of the top surface. The side sealing part extends out of the side face and is connected to the top sealing part. The side sealing part is provided with a crease. The crease extends from the bottom surface to the top surface. The side sealing part is divided into a first part and a second part by the crease. The second part is connected to the first part, the side surface and the top sealing part. The first part is provided with a first notch. The first part is folded on the second part along the crease. The first part and the second part which are folded together are folded towards the side surface. The top sealing part and part of the second part connected to the top sealing part are folded towards the top surface. The invention further provides a battery with the battery cell and an electronic device with the battery.

Description

technical field [0001] The present application relates to an electric core, a battery with the electric core and an electronic device with the battery. Background technique [0002] During the packaging process of a general battery, the top edge of the cell and the side edge of the part connected to the top edge are folded toward the top surface of the cell, and the circuit board is placed on the top surface of the cell to reduce the The packaging space of the battery in the length direction improves the battery capacity. However, when the above-mentioned packaging method is applied to a double-folded battery (that is, a battery that is folded twice on the side sealing edge), since the side sealing edge is folded twice, the side sealing edge changes from the original single-layer structure to a double-layer structure. In this way, the part of the side edge that is connected to the top edge is not easy to fold toward the top surface, and it is easy to rebound, resulting in d...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M10/04
CPCH01M10/0436H01M10/04Y02E60/10Y02P70/50
Inventor 黄小钊
Owner DONGGUAN NVT TECH
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