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Super-capacitor pole piece

A super capacitor and pole piece technology, applied in the field of capacitors, can solve the problems of affecting the size of the capacitor, easy agglomeration of graphene oxide, complicated operation, etc., to ensure product quality, avoid position movement, and avoid the effect of movement.

Active Publication Date: 2019-03-12
SICHUAN ANKETE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, graphene oxide is very easy to agglomerate during use, which greatly reduces the specific surface area of ​​the material, thus affecting the capacitance.
In the prior art, although some materials such as polyaniline are added to improve the dispersion of graphene oxide to solve the problem of its agglomeration, there are also difficulties such as complicated operation and difficult practical promotion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] 1. Use the method of the present invention to prepare graphene oxide 23 groups. The specific preparation parameters of each group are shown in Table 1, wherein the unit of each material is parts by weight.

[0050] The concrete preparation parameter of each embodiment of table 1

[0051] Example

Graphene oxide

ferric chloride

urea

Phenylhydrazine

Magnetic Field Spacing

Coating time

Example 1

0.2

2.25

30

0.3

20mm

30min

Example 2

0.2

1.50

30

0.3

20mm

30min

Example 3

0.3

2.25

30

0.3

20mm

30min

Example 4

0.4

2.25

30

0.3

20mm

30min

Example 5

0.4

3.00

30

0.3

20mm

30min

Example 6

0.5

2.25

30

0.3

20mm

30min

Example 7

0.5

3.75

30

0.3

20mm

30min

Example 8

0.3

1.50

30

0.3

20mm

30min

Example 9

0....

Embodiment 2

[0080] Embodiment two: the preparation parameter of preferred silica sol

[0081] 1. According to the above method, prepare 10 groups of silica sol, and the specific parameters are shown in the table. Prepare graphene oxide dispersion liquid, graphene oxide: deionized water=1:25. Preparation of polystyrene emulsion, styrene monomer: deionized water: Tween80: ammonium persulfate aqueous solution = 1:5:0.07:0.25. Silica sol: polystyrene emulsion: graphene oxide dispersion = 22%: 56%: 22%. The pulling speed was 10cm / min, and 10 groups of coatings were prepared.

[0082] Table 5 Specific parameters of silica sol

[0083]

[0084]

[0085] 2. Thermal conductivity test: C-THERM TCI thermal conductivity measuring instrument is used to test the thermal conductivity of the above 10 groups of coatings at a test temperature of 20°C. The results are shown in Table 6.

[0086] Table 6 thermal conductivity display

[0087] group

Thermal conductivity (W / (m*K))

...

Embodiment 3

[0094] Embodiment three: the preparation parameter of preferred polystyrene emulsion

[0095] 1. Prepare 8 groups of polystyrene emulsions according to the above method, and the specific parameters are shown in Table 8. Prepare silica sol 8 groups according to the method of Example 2 group 4; prepare graphene oxide dispersion liquid, graphene oxide: deionized water = 1:25. According to silica sol: polystyrene emulsion: graphene oxide dispersion = 22%: 56%: 22%, the pulling speed was 10 cm / min, and 8 coating groups were prepared.

[0096] Table 8 Specific parameters of each group

[0097]

[0098]

[0099] 2. Test thermal conductivity according to the method of Example 2, and the results are shown in Table 9.

[0100] Table 9 thermal conductivity display

[0101] group

Thermal conductivity (W / (m*K))

group 1

26.0

group 2

26.1

group 3

25.9

group 4

26.0

Group 5

26.1

Group 6

25.8

Group 7 ...

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Abstract

The invention relates to a super-capacitor pole piece. The super-capacitor pole piece comprises an inserted pole piece section extending into a capacitor; a fixed pole piece section is arranged at oneend of the inserted pole piece section; a locked pole piece section is arranged at one end of the fixed pole piece section; an outer connecting pole piece section is arranged at one end of the lockedpole piece section; the inserted pole piece section and the fixed pole piece section form an L-shaped folded plate shape; and the whole locked pole piece section is in a ''U'' shape. The inserted pole piece section is inserted into the capacitor, so that preliminary fixation of the pole piece and the capacitor is achieved; the locked pole piece section is clamped between a cover body of the capacitor and a shell, so that further fixation of the pole piece is achieved, and the pole piece is prevented from moving; and the fixed pole piece section is fixed on the cover body of the pole piece through a bolt, so that the pole piece can be effectively positioned on the shell, the pole piece is prevented from moving during encapsulation of epoxy resin, and the product quality is ensured.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a pole piece of a super capacitor. Background technique [0002] Supercapacitor is a new type of green energy storage device that can charge / discharge quickly. It has the dual functions of traditional electrolytic capacitors and batteries, its power density is much higher than that of batteries, and its charge and discharge speed is much faster than that of batteries; its energy density is much higher than that of traditional electrolytic capacitors. Compared with traditional electrolytic capacitors and batteries, supercapacitors have the advantages of small size, high energy density, fast charge and discharge speed, long cycle life, high discharge power, wide operating temperature range -40°C to 85°C, good reliability and low cost, etc. advantage. Therefore, supercapacitors have become a new, efficient, practical, green and environmentally friendly fast charge and discharge...

Claims

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Application Information

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IPC IPC(8): H01G11/22H01G11/26H01G11/24H01G11/46H01G11/32H01G11/86
CPCH01G11/22H01G11/24H01G11/26H01G11/32H01G11/46H01G11/86Y02E60/13
Inventor 杨文耀李杰刘代军任晓霞徐勇刚栾平段良菊
Owner SICHUAN ANKETE ELECTRONICS TECH
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