Preparation method of flexible strip-shaped lithium-carbon dioxide battery positive electrode material and battery

Abstract

The invention discloses a preparation method of a flexible strip-shaped lithium-carbon dioxide battery positive electrode material and a construction scheme of a battery. The interior of a device is of a laminated structure; the structures of the device sequentially comprise a red copper strip, a metal lithium strip, a glass fiber diaphragm, an electrolyte, a flexible medium loaded with an active substance MoN and a flexible stainless steel mesh from a negative electrode; and the outer part of the device is integrally wrapped and packaged by a strip-shaped heat shrink tube with a positive electrode hole. According to the preparation method, the prepared flexible strip-shaped lithium-carbon dioxide battery with low charging voltage can obviously reduce the charging voltage of the device to about 3.3 V; the synthesis raw material is cheap and easy to obtain, the synthesis process is simple and energy-saving; the working electrode is simple to prepare; the device assembly process is simple, convenient and rapid; and the flexible strip-shaped lithium-carbon dioxide battery is suitable for batch production and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of metal-air batteries, in particular to a preparation method of a flexible strip-shaped lithium-carbon dioxide battery cathode material and the battery. Background technique [0002] The rapid development of human society is inseparable from the support of energy. At present, traditional fossil energy such as coal, oil, and natural gas is still the main energy used by human beings. However, with the exhaustion of traditional energy, the world is already facing a serious energy crisis. In addition, the consumption of traditional energy has brought serious environmental problems, especially the emission of greenhouse gases, mainly CO2, which can easily lead to a series of crises, such as global warming and sea level rise. Therefore, how to effectively solve the two major problems of environment and energy is the key issue to realize the sustainable development of human society. [0003] The emergence of comm...

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Problems solved by technology

Compared with commercial lithium-ion batteries, it has a higher theoretical energy density, but it also has its own defects, such as high charging potential, severe polarization, and poor cycle performance. Therefore, finding a suitable positive electrode catalyst is a driving force. Key issues in the development of lithium-carbon dioxide batteries

[0005] At present, there have been many positive electrode catalyst reports, such as carbon nanotubes [1], graphene [2], Ketjen black [3], Mo2C [4], metal Ru [5], porous Mn2O3 [6], IrO2 [7] etc. In summary, it can be found that most of the positive electrode catalyst materials reported so far have low energy efficiency and serious polarization, and most of them exist in the form of powder materials, which need to be mixed with a binder in a certain proportion to prepare The gas electrode can only work properly when the slurry is coated on a gas collector such as carbon paper, nickel foam, copper foam, aluminum foam, etc. The substrate is often rigid, so it is not suitable for assembly into a flexible and lightweight energy storage device and applied to wearable electronic devices

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