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Soft shell for battery, preparation method and application of soft shell

A battery and soft shell technology, which is applied in the field of its preparation and battery soft shell, can solve the problems of high cost and complicated process, and achieve the effect of accurate judgment, reducing procedures and workload

Active Publication Date: 2020-07-10
SUZHOU QINGTAO NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For CO in existing Li-ion batteries 2 Monitoring needs the help of testing equipment, high cost and complicated process

Method used

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  • Soft shell for battery, preparation method and application of soft shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] (1) Preparation of transparent identification part:

[0068] Dissolve 3 mol of methacrylate and 1 mol of N-amidino hexadecyl acrylamide in 20 mL of dimethyl sulfoxide, mix well in the reactor, use RAFT polymerization reaction method, react for 10 h, wash after the treatment, Finally, dialyze and freeze-dry to obtain carbon dioxide-responsive polymer materials;

[0069]Making the carbon dioxide-responsive polymer material into a carbon dioxide-responsive film with a thickness of 50 μm, and adhering the carbon dioxide-responsive film to a polyethylene transparent film with an equal area and a thickness of 40 μm to obtain a transparent identification part;

[0070] (2) Preparation of soft shell for battery:

[0071] Composed of substrate layer (polyamide), metal foil layer (phosphate-treated aluminum foil), heat-sealing layer (cyclic polyolefin), and between the substrate layer and the metal foil layer, between the metal foil layer and the heat-sealing layer An aluminum-...

Embodiment 2

[0076] Compared with Example 1, the difference is that: on the basis of the battery of Example 1, a second transparent identification part is also provided. In the second transparent identification part, methacrylate and N-amidinohexadecylpropylene The molar ratio of amides is 1:5.

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Abstract

The invention discloses a soft shell for a battery, a preparation method and application of the soft shell. The soft shell for the battery comprises a transparent identification part composed of a resin layer and a carbon dioxide response layer. The soft shell for the battery is suitable for all batteries capable of generating carbon dioxide in the using process, by adopting the structure, the performance and the quality of the battery can be preliminarily judged after the first charging and discharging process is completed, and unqualified products can be found in time; meanwhile, the carbondioxide release amount in the battery is judged according to the transparent state of the carbon dioxide responsive film; the performance and the state of the battery are preliminarily judged; compared with the prior art, the process and workload of battery detection are greatly reduced, and meanwhile, since the carbon dioxide responsive film is used for detecting carbon dioxide through reaction with carbon dioxide, after the carbon dioxide responsive film is expected to be arranged, the carbon dioxide generated in the use process of the battery can be absorbed, and the performance of the battery is further improved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a soft case for batteries, its preparation method and application. Background technique [0002] With the continuous consumption of fossil energy and the aggravation of environmental pollution, the development and effective utilization of new renewable energy has become an important issue for human beings. In recent years, pure electric vehicles, hybrid vehicles, and unmanned aerial vehicles have entered a stage of rapid development and popularization. Research and development of corresponding high-safety energy storage devices that can be matched has become one of the technical problems that need to be overcome urgently. [0003] Lithium-ion batteries are widely used in the field of energy storage devices due to their high energy density, high output voltage, and good safety and stability. However, there are still many problems in the use of lithium-ion batteries. ...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M10/052H01M10/058H01M10/48
CPCH01M10/058H01M10/052H01M10/488Y02E60/10Y02P70/50
Inventor 李峥冯玉川何泓材周柯王丹丹杨帆
Owner SUZHOU QINGTAO NEW ENERGY TECH CO LTD