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Pressure-sensitive color developing protective film, preparation method thereof, and battery

A technology of protective film and color development, which is applied in the field of lithium-ion batteries, can solve the problems of inability to monitor the flatness of hot-pressing forming equipment in real time, and facilitate timely adjustment, save testing time, and improve production efficiency effect

Pending Publication Date: 2021-12-14
ZHUHAI COSMX BATTERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems in the prior art that it is impossible to monitor the flatness of the hot-pressing chemical forming equipment in real time and the detection of the flatness of the hot-pressing chemical forming equipment affects at least one aspect of the production efficiency

Method used

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  • Pressure-sensitive color developing protective film, preparation method thereof, and battery
  • Pressure-sensitive color developing protective film, preparation method thereof, and battery
  • Pressure-sensitive color developing protective film, preparation method thereof, and battery

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Embodiment Construction

[0035] Lithium battery manufacturing process generally comprises the steps of: mixing, coating, cold, pieces, winding (or laminate), injection, into and capacity. Wherein the formation is a critical step to improve the electrical performance of the lithium battery. It is first formed into a battery across the electrodes into the appropriate low current inside the battery activation process of the active material. Soft package lithium ion battery into a hot press, the battery can be removed prior shaping process into the baking process, while reducing the working period, reduce battery production cycle, a significant reduction in labor, is more conducive to the battery after sealing the battery more smooth evacuation. In the hot pressing process into the lithium ion battery, the battery hot great influence on the flatness of the lithium ions into the device for pressing the pressure into a lithium ion battery, and hot pressing into a great pressure on the battery performance, Jorge...

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Abstract

The invention provides a pressure-sensitive color developing protective film, a preparation method thereof, and a battery. The pressure-sensitive color developing protective film covers the surface of the battery, the pressure-sensitive color developing protective film comprises a substrate, a protective layer and a pressure-sensitive substance coating, and the pressure-sensitive substance coating is arranged between the substrate and the protective layer; and the pressure-sensitive substance coating layer shows corresponding color change according to the pressure borne by the pressure-sensitive substance coating layer. The pressure-sensitive color developing protective film is attached to the surface of the battery and protects the battery, and whether the flatness of hot-pressing formation equipment and the magnitude of applied pressure are in a preset range or not can be monitored in real time by observing the color change and color uniformity change of the pressure-sensitive color developing protective film on the surface of the battery, so that timely adjustment is facilitated; and by adopting the pressure-sensitive developing protective film provided by the invention, the hot-pressing formation equipment does not need to be periodically detected, so that the detection time is saved, and the production efficiency is also improved.

Description

Technical field [0001] The present invention relates to the field of lithium-ion battery technology, particularly, it relates to a pressure-sensitive color-protective film and method, and a battery. Background technique [0002] With the development of science and technology, more and more electronic products into every aspect of people's lives, and electronic products used normally can not do without the battery, wherein the lithium-ion batteries because of its energy, environmental friendliness, in various fields electronic products have been widely used. [0003] Lithium battery manufacturing process generally comprises the steps of: mixing, coating, cold, pieces, winding (or laminate), injection, into and capacity. Wherein the formation is a critical step to improve the electrical performance of the lithium battery. It is first formed into a battery across the electrodes into the appropriate low current inside the battery activation process of the active material. Soft packag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48H01M50/598H01M10/44H01M10/052
CPCH01M10/488H01M50/598H01M10/446H01M10/052Y02E60/10
Inventor 谢春燕王凤英吴清恶汪嘉伟
Owner ZHUHAI COSMX BATTERY CO LTD
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