A combination of conductive particles
A technology of conductive particles and particles, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, to achieve good electrical and thermal conductivity
Active Publication Date: 2021-07-16
上海润势科技有限公司
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the bimodal distribution proposed in this literature does not meet the needs of maximizing silver powder loading
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0057] Silver powder with a peak particle size of 10 μm and silver powder with a peak particle size of 3 μm are selected for the combination of conductive particles.
[0058] The weight of each component of the conductive adhesive is:
[0059] Silver powder, 10μm: 63.33kg;
[0060] Silver powder, 3μm: 31.67kg;
[0061] Epoxy resin E51: 4.25kg;
[0062] Epoxy modifier CF2403: 0.5kg;
[0063] Boron trifluoride o-methylaniline: 0.25kg.
Embodiment 2
[0065] Silver powders with peak particle sizes of 10 μm, 3 μm and 1 μm were used for the combination of conductive particles.
[0066] The weight of each component of the conductive adhesive is:
[0067] Silver powder, 10μm: 54.28kg;
[0068] Silver powder, 3μm: 27.14kg;
[0069] Silver powder, 1μm: 13.58kg;
[0070] Epoxy resin E51: 4.25kg;
[0071] Epoxy modifier CF2403: 0.5kg;
[0072] Boron trifluoride o-methylaniline: 0.25kg.
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 |
|---|---|---|
| particle size | aaaaa | aaaaa |
| electrical resistivity | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Login to View More
Abstract
The present application provides a combination of conductive particles, including: conductive particles with a multimodal particle size distribution, and smaller conductive particles fill the gaps between larger conductive particles. The combination of conductive particles of the present application, compared with the conductive particles of unimodal distribution or bimodal distribution, the combination of conductive particles of multimodal distribution can increase the weight filling amount of conductive particles in the resin to 95% without affecting the operational performance of the conductive adhesive And the mechanical strength after curing, thereby reducing the resistivity of the conductive adhesive and increasing the thermal conductivity to obtain better electrical and thermal conductivity.
Description
technical field [0001] The invention relates to the technical field of solar cell manufacturing, in particular to a combination of conductive particles of conductive adhesive for solar cells. Background technique [0002] Conductive glue (conductive paste) is usually formed by dispersing conductive particles in a thermosetting resin, which can provide electrical and thermal conductivity between two electronic components, and has been widely used in the field of electronics and electrical. A particularly important electrical device is a solar cell. Typically, such as a heterojunction solar cell with an amorphous silicon layer, a low-temperature conductive paste, ie, a conductive glue, is used to manufacture surface electrodes. In order to obtain better battery performance, it is necessary to use a conductive adhesive product with extremely high conductivity. Usually, high-conductivity particles such as silver powder are filled as much as possible between thermosetting resins....
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 Patents(China)
IPC IPC(8): H01B1/22
CPCH01B1/22
Inventor 段晶晶张磊郭明波
Owner 上海润势科技有限公司