Preparation method of porous carbon cathode material and primary lithium battery using porous carbon cathode material
A cathode material and porous carbon technology, which is applied in the electrodes of primary batteries, electrode manufacturing, battery electrodes, etc., can solve the problems of poor consistency of battery products, difficult to control the amount of alcohol volatilization, and unsuitable for large-scale production. Agglomerated and clumped, non-hazardous, easy-to-control effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] For comparison, use the existing method to prepare a kind of porous carbon cathode material for lithium primary battery, select the water emulsion of acetylene black, 60% polytetrafluoroethylene and alcohol, according to acetylene black: polytetrafluoroethylene: alcohol mass ratio 100:10 : 300 mixed in a blender, then extruded into a carbon bag, dried at 90°C for 10 hours to remove alcohol, then treated at 250-260°C for 20 minutes, and finally heated at 180±5°C, Vacuum drying for 15±2h under the condition of vacuum degree ≤-0.1MPa to obtain a thoroughly dried porous carbon cathode material A, which is used as a reference material prepared by the current technology.
[0025]The method of the invention is used to prepare a porous carbon cathode material for lithium primary batteries, which is prepared by water beating, drying and dehydration, drying for further dehydration, high-temperature foaming and vacuum drying. Among the raw materials, the carbon black is selected f...
Embodiment 2
[0028] A porous carbon cathode material for a lithium primary battery is prepared, which is prepared by ultrasonic water beating, dehydration by pressure filtration, drying for further dehydration, high-temperature foaming, and vacuum drying. Among the raw materials, the carbon black is selected from acetylene black, the binder is selected from 60% polytetrafluoroethylene water emulsion, and the functional additive is selected from copper powder. In this embodiment, the mass ratio of 300:20:3500:42 is preferably weighed to mix acetylene black, copper powder, water, and polytetrafluoroethylene emulsion, and mix and disperse at a high speed with a dynamic ultrasonic disperser, so that each component is fully mixed and evenly Afterwards, a slurry was obtained. The resulting slurry is filtered and dehydrated by a plate-and-frame filter press, crushed and granulated, dried at 150±10°C for 8 hours for further dehydration, then foamed at 280-290°C for 15 minutes, and finally Vacuum ...
Embodiment 3
[0030] A porous carbon cathode material for a lithium primary battery is prepared, which is prepared by water beating, drying and dehydration, high-temperature foaming, and vacuum drying. Among the raw materials, the carbon black is a mixture of furnace black and conductive carbon black, the binder is a mixture of polytetrafluoroethylene aqueous emulsion and polyacrylic acid resin aqueous solution, and the functional additive is copper phthalocyanine. The present embodiment preferably weighs carbon black, copper phthalocyanine, water and binding agent in a mass ratio of 100:3:3000:20, wherein carbon black is a mixture of furnace black and conductive carbon black with a mass ratio of 80:20 , the binder is a mixture of polytetrafluoroethylene aqueous emulsion and polyacrylic acid resin aqueous solution with a mass ratio of 60:40. After mixing these substances together, disperse at high speed with a high-shear dispersing emulsifier, so that each component is fully mixed and unifo...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More 
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
