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Fiber-shaped lithium air battery and preparation method thereof

An empty battery, fibrous technology, applied in the field of fibrous lithium-air battery and its preparation, achieves the effects of broad application prospects, good flexibility, and good cycle stability

Active Publication Date: 2016-05-18
YANTAI TAYHO ADVANCED MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fibrous lithium-air battery and its preparation method to overcome the existing problems of lithium-air batteries

Method used

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  • Fiber-shaped lithium air battery and preparation method thereof
  • Fiber-shaped lithium air battery and preparation method thereof
  • Fiber-shaped lithium air battery and preparation method thereof

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Embodiment Construction

[0026] Below in conjunction with specific implementation case, exemplary explanation and help further understanding of the present invention, but the specific details of implementation case are only for illustrating the present invention, do not represent all technical solutions under the present invention concept, therefore should not be interpreted as the overall technical scheme of the present invention The limitation of the technical solution, some insubstantial additions and changes that do not deviate from the concept of the present invention in the eyes of a skilled person, such as simple replacement or replacement of technical features with the same or similar technical effects, all belong to the protection scope of the present invention.

[0027] Prepare gel electrolyte. According to the mass ratio of 0.25:1, poly(vinylidene fluoride-co-hexafluoropropylene) was added to N-methylpyrrolidone, and stirred thoroughly to obtain solution A; according to the mass ratio of 0.1...

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Abstract

The invention belongs to the technical field of energy sources and particularly relates to a fiber-shaped lithium air battery and a preparation method thereof. The fiber-shaped lithium air battery is composed of a lithium metal wire, gel electrolyte, a carbon nano tube air electrode and a heat shrink tube protective layer with holes by adopting a coaxial structure. The fiber-shaped lithium air battery prepared by the invention can directly work in the air, and has ultrahigh energy density, relatively good circulating stability and good flexibility; for example, the complete specific discharge capacity in the air can reach 12470mAh / g and the battery can be stably and circularly charged and discharged for 100 times at the discharge depth of 500mAh / g; and the fiber-shaped lithium air battery can maintain stable electrochemical properties when being bent at different degrees. The fiber-shaped lithium air battery has a unique fiber configuration, so that the fiber-shaped lithium air battery can be independently woven into a fabric and also can be mixed and woven with textiles, and has a wide application prospect in the field of wearable electronics.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a fibrous lithium-air battery and a preparation method thereof. Background technique [0002] Lithium-air batteries have become one of the energy storage systems that have attracted much attention due to their ultra-high energy density [1-2]. However, there are still many deficiencies in the currently developed lithium-air batteries [3-5]. (1) Lithium-air batteries directly use oxygen in the air as the reaction raw material, but water, carbon dioxide, etc. in the air will react with lithium metal, causing its performance to decline significantly. The current lithium-air batteries reported in the literature are usually tested in dry pure oxygen. Strictly speaking, they should be called lithium-oxygen batteries; (2) The organic electrolyte will continue to volatilize during use; (3) During charging During the discharge process, metal lithium will grow dendrites, an...

Claims

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Application Information

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IPC IPC(8): H01M12/08
CPCH01M12/08Y02E60/10
Inventor 彭慧胜张晔王列
Owner YANTAI TAYHO ADVANCED MATERIALS CO LTD
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