Production process of nano graphene balls
A technology of nano-graphite and production process, which is applied in the field of nano-graphene ball production process, can solve the problems of low conductivity, limited practical application, and performance decline of graphite, and achieve the effect of high conductivity
Pending Publication Date: 2021-12-24
张超
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to the extremely low electrical conductivity of graphite, the performance drops drastically, which limits its practical application.
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0024] A kind of nano graphene sphere production technique, comprises the steps:
[0025] Step 1: Prepare graphene conductive paste according to a certain ratio, which is 6300s / m (conductivity) higher than flake graphene conductive paste;
[0026] Step 2: After briquetting the nano-graphene balls, the electrical conductivity is the highest;
[0027] Step 3: The conductivity of the special conductive agent used for the positive electrode of the ternary lithium battery for heat dissipation and battery life reaches 150,000 to 180,000 S / m, and the conductivity of the oily conductive agent is currently the highest.
[0028] Step 4: Make substantial adjustments to the high-efficiency vibration swing impact nano-machine, adjust the impact force, and use scientific principles such as machinery, mechanics, and physics to replace it with an impact nano-machine in all directions;
[0029] Step 5: Use the modified No. 1 high-efficiency vibration swing impact nanomachine to impact the gra...
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
| Property | Measurement | Unit |
|---|---|---|
| electrical conductivity | aaaaa | aaaaa |
| electrical conductivity | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the technical field of high-tech miraculous nano graphene balls, and particularly relates to a production process of nano graphene balls. Theproduction process comprises the following steps that: 1, graphene conductive slurry is prepared according to a certain proportion, wherein the conductivity of the graphene conductive slurry is 6300s / m higher than that of flaky graphene conductive slurry; 2, after nano graphene balls are pressed into blocks, the highest conductivity is detected to reach 110530 S / m; 3, the conductivity of special conductive agent for a heat dissipation endurance positive electrode of a ternary lithium battery reaches 150000-180000 S / m, and the conductivity of an oily conductive agent is the highest at present; and 4, an efficient vibration swing impact nano machine is greatly adjusted, the impact force is adjusted, and the efficient vibration swing impact nano machine is changed into an all-direction impact nano machine through scientific principles of machinery, mechanics, physics and the like. The structure is reasonable, and no dead angle is left by adopting powerful all-direction up-down and left-right impact. The nano graphene spheres can be extremely small spheres. Due to the fact that the contact point is extremely small, the resistance derivative, namely, the conductivity, is high.
Description
technical field [0001] The invention relates to the technical field of nano-graphene balls in the high-tech field, in particular to a production process of nano-graphene balls. Background technique [0002] Lithium-ion batteries are widely used in high-tech fields such as portable electronic devices, aerospace and electric vehicles because of their high energy density, power density, no memory effect, long cycle life, and small self-discharge effect. In recent years, as the demand for electric vehicles and hybrid vehicles continues to grow, the demand for lithium-ion batteries has further expanded, and at the same time, higher requirements have been put forward for their energy density, rate performance and service life. [0003] At present, the negative electrode material of commercial lithium-ion batteries is mainly graphite, but the maximum theoretical lithium storage capacity of graphite is only 372mAh / g, which cannot meet the requirements of high-energy lithium-ion batt...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194H01M4/62B82Y30/00B82Y40/00
CPCC01B32/194H01M4/625B82Y30/00B82Y40/00C01B2204/22Y02E60/10
Inventor 张超张新庄
Owner 张超