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

A carbon dioxide and battery positive electrode technology, which is applied to fuel cell half-cells and secondary battery-type half-cells, battery electrodes, circuits, etc., can solve problems such as low energy efficiency, high charging potential, and poor cycle performance. Achieve the effects of simple synthesis process, energy saving, simple preparation and broad application prospects

Active Publication Date: 2021-11-16
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of flexible strip-shaped lithium-carbon dioxide battery positive electrode material and battery
  • Preparation method of flexible strip-shaped lithium-carbon dioxide battery positive electrode material and battery
  • Preparation method of flexible strip-shaped lithium-carbon dioxide battery positive electrode material and battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Ultrasonic wash the carbon cloth with acetone for 0.5h, then ultrasonically wash it with deionized water for 3 times, each washing time is 10min, then immerse it in concentrated nitric acid at room temperature for 0.5h, and then ultrasonically wash it with deionized water for 3 times, each washing time is 10min, and then placed in a blast drying oven at 60°C for drying, and then cut into specifications of 1cm in width and 10cm in length for use.

[0035] Step 2: take by weighing 0.5g ammonium molybdate [(NH 4 )6 Mo 7 o 24 4H 2 O] Add to 10mL deionized water, then slowly add 10mL concentrated nitric acid, stir for 20min, then slowly add 0.3g cetyltrimethylammonium bromide cationic surfactant, stir for 10min until the solution gradually turns yellow, add a tablet Step 1 The treated and cut carbon cloth was impregnated for 10 minutes.

[0036] Step 3: Transfer the mixed solution containing carbon cloth in step 2 into a 50mL digestion tank lined with polytetrafl...

Embodiment 2

[0040] Step 1: ultrasonically wash the carbon cloth with acetone for 1 hour, then ultrasonically wash it with deionized water for 3 times, each washing time is 20 minutes, then immerse it in concentrated nitric acid at room temperature for 1 hour, then ultrasonically wash it with deionized water for 3 times, Wash for 20 minutes each time, then dry in a blast drying oven at 80°C, and then cut into specifications with a width of 1 cm and a length of 8 cm for later use.

[0041] Step 2: take by weighing 0.5g ammonium molybdate [(NH 4 ) 6 Mo 7 o 24 4H 2 O] Add to 20mL deionized water, then slowly add 10mL concentrated nitric acid, stir for 10min, then slowly add 0.3g cetyltrimethylammonium bromide cationic surfactant, stir for 20min until the solution gradually turns yellow, add a tablet Step 1 The treated and cut carbon cloth was impregnated for 20min.

[0042] Step 3: Transfer the mixed solution containing carbon cloth in step 2 into a 50mL digestion tank lined with polytet...

Embodiment 3

[0046] Step 1: ultrasonically wash the carbon cloth with acetone for 1 hour, then ultrasonically wash it with deionized water for 3 times, each washing time is 20 minutes, then immerse it in concentrated nitric acid at room temperature for 1 hour, then ultrasonically wash it with deionized water for 3 times, Wash for 20 minutes each time, then dry in a blast drying oven at 80°C, and then cut into specifications with a width of 1 cm and a length of 8 cm for later use.

[0047] Step 2: take by weighing 0.6g ammonium molybdate [(NH 4 ) 6 Mo 7 o 24 4H 2 O] Add to 20mL deionized water, then slowly add 10mL concentrated nitric acid, stir for 10min, then slowly add 0.3g cetyltrimethylammonium bromide cationic surfactant, stir for 20min until the solution gradually turns yellow, add a tablet Step 1 The treated and cut carbon cloth was impregnated for 20min.

[0048] Step 3: Transfer the mixed solution containing carbon cloth in Step 2 into a 50mL digestion tank lined with polytet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90H01M12/08
CPCH01M4/9083H01M4/90H01M12/08H01M4/8882H01M2004/8689Y02E60/10
Inventor 程建丽王斌漆贵财
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap