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Flexible battery pack

A flexible battery pack and flexible technology, applied in battery pack components, circuits, conductive connections, etc., can solve the problems of low safety, low capacity, inability to stretch and twist, etc., achieving strong structural adjustment, wide application range, The effect of improving safety

Active Publication Date: 2022-03-22
嘉兴极展科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current flexible batteries use ultra-thin flexible batteries, which can be bent and have a certain degree of flexibility; but there are the following defects: the number of bending times is limited, and the life of the battery will be lost if the number of bending times is too high; at the same time, the capacity is low, about 1mAh to 100mAh between; moreover, ultra-thin flexible batteries can only be bent, not stretched or twisted
In addition, the existing flexible battery products lack external protection, the safety is too low, and safety problems such as puncture and rupture are prone to occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] [Example 1] Flexible connector

[0051] Please refer to Figures 1-1 to 1-4 Optionally, the flexible connector includes two connecting ends 11 and a connecting wire 12 connected between the two connecting ends 11, and the connecting wire 12 is bent multiple times to form a plane deformation structure or a three-dimensional spring structure. The two connecting ends 11 are used to connect two electric cores. The plane deformation structure or the three-dimensional spring structure realizes flexibility and stretchability.

[0052] Optionally, the plane deformation structure is a helical structure such as an elliptical helical structure, a circular helical structure or a meander line structure or other similar structures.

[0053] Optionally, the three-dimensional spring structure is a circular, flat or special-shaped spring structure.

[0054] Optionally, the plane where the plane deformation structure is located forms an included angle with the extending direction of th...

Embodiment 2

[0065] [Example 2] Protective shell

[0066] Please refer to diagram 2-1 , the protective case includes at least two main shells 21 and an inter-shell structure for connecting adjacent main shells, the main shell 21 is used to accommodate and protect the battery core, and the inter-shell structure can Stretch, bend or twist and serve to protect the flexible link.

[0067] optional, such as diagram 2-1 As shown, the main housing 21 includes two box bodies 210 that are buckled with each other. The two box bodies 210 are basically symmetrical, and are buckled together to form the hollow main housing 21 . The inner space of the main casing 21 is used for accommodating one or more battery cells. The side wall of the main housing 21 , or in other words, the side wall of the box body 210 is provided with an opening 211 allowing the flexible connecting piece to pass through.

[0068] optional, such as Figure 2-2 and 2-3 As shown, the intershell structure includes a bending li...

Embodiment 3

[0089] [Example 3] Protective shell

[0090] Please refer to Figure 3-1 , the protective case includes at least two main shells 31 and an inter-shell structure for connecting adjacent main shells, the main shells 31 are used to accommodate and protect the electric core, and the inter-shell structure can Stretch, bend or twist and serve to protect the flexible link.

[0091] optional, such as Figure 3-1 As shown, the main housing 31 includes two box bodies 310 that are buckled with each other. The two box bodies 310 are basically symmetrical, and are buckled together to form the hollow main housing 31 . The inner space of the main casing 31 is used for accommodating one or more battery cells. The side wall of the main housing 31 , or in other words, the side wall of the box body 310 is provided with an opening 311 allowing the flexible connecting piece to pass through.

[0092] Such as Figure 3-2 As shown, the inter-shell structure includes elastic pieces 32 . Optional...

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PUM

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Abstract

The invention discloses a flexible battery pack, comprising: a flexible and stretchable cell assembly and a flexible and stretchable protective case for accommodating the cell assembly; the cell assembly includes at least two electric cells A core and a flexible connector for electrically connecting adjacent electric cores; the protective case includes at least two main shells and an inter-shell structure for connecting adjacent main shells, and the main shell is used to accommodate and protect the battery core, the inter-shell structure can be stretched, bent or twisted and used to protect the flexible connector. In the flexible battery pack of the present invention, the cells are connected through flexible connectors to form a flexible and stretchable cell assembly, and then accommodated in a flexible and stretchable protective case, which realizes stretchable, bendable and twistable , Conductive, and the capacity of the battery pack can reach more than 100mAh, and the safety is higher.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a flexible battery pack. Background technique [0002] With the rapid development of electronic technology, more and more electronic devices are developing in the direction of thinner, lighter and more flexible. The biggest challenge at present is the flexible energy storage power supply products. In the fields of smart clothing, flexible electronics, medical equipment, flexible sensors, and flexible displays, there is an urgent need for flexible batteries. However, traditional lithium-ion batteries cannot be bent or folded. When the volume changes too much, it may even cause a short circuit between the positive and negative electrodes, causing thermal runaway and causing serious safety problems. [0003] At present, companies such as Panasonic and NEC have launched flexible battery products. The current flexible batteries use ultra-thin flexible batteries, which can be bent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/296H01M50/503
CPCH01M50/20H01M50/50Y02E60/10
Inventor 宋泽铭张留华何蕾
Owner 嘉兴极展科技有限公司
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