阅读说明：本技术 一种锂电池坩埚用透气导电胶及其制备方法 (Breathable conductive adhesive for lithium battery crucible and preparation method of breathable conductive adhesive ) 是由 耿林华 武建军 龚军 耿廷 于 2021-07-15 设计创作，主要内容包括：本发明属于导电胶技术领域,具体涉及一种锂电池坩埚用透气导电胶及其制备方法,包括干料和水,水与干料之间的重量比为2～3：1；所述干料由以下重量份数的组分组成：石墨粉40～60份、糊精20～40份、硼砂5～10份,碳酸氢钠3～5份。通过本透气导电胶可以对坩埚锅体与坩埚盖之间存在的间隙进行粘结,并且具有良好的导电性和透气性,避免在石墨化通电过程中,产生起弧和电蚀,从而提高了电石锅的使用寿命,满足了生产所需,保证石墨化过程的顺利进行。(The invention belongs to the technical field of conductive adhesives, and particularly relates to a breathable conductive adhesive for a lithium battery crucible and a preparation method thereof, wherein the breathable conductive adhesive comprises a dry material and water, and the weight ratio of the water to the dry material is (2-3): 1; the dry material comprises the following components in parts by weight: 40-60 parts of graphite powder, 20-40 parts of dextrin, 5-10 parts of borax and 3-5 parts of sodium bicarbonate. The breathable conductive adhesive can bond a gap between the crucible pot body and the crucible cover, has good conductivity and breathability, avoids arcing and electric corrosion in the graphitizing electrifying process, prolongs the service life of the carbide pot, meets the production requirements, and ensures the graphitizing process to be carried out smoothly.)

1. The utility model provides a lithium cell crucible is with ventilative conducting resin which characterized in that: the method comprises a dry material and water, wherein the weight ratio of the water to the dry material is 2-3: 1;

the dry material comprises the following components in parts by weight: 40-60 parts of graphite powder, 20-40 parts of dextrin, 5-10 parts of borax and 3-5 parts of sodium bicarbonate.

2. The permeable conductive adhesive for the lithium battery crucible as claimed in claim 1, wherein: the weight ratio of water to dry materials is 2.2: 1;

the dry material comprises the following components in parts by weight: 60 parts of graphite powder, 30 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

3. The permeable conductive adhesive for the lithium battery crucible as claimed in claim 1, wherein: the weight ratio of water to dry materials is 2.6: 1;

the dry material comprises the following components in parts by weight: 55 parts of graphite powder, 35 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

4. The permeable conductive adhesive for the lithium battery crucible as claimed in claim 1, wherein: the weight ratio of water to dry materials is 3: 1;

the dry material comprises the following components in parts by weight: 50 parts of graphite powder, 40 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

5. A method for preparing a conductive paste of the gas permeable conductive paste according to claim 1, comprising the steps of:

s1, weighing dry materials and water according to parts by weight;

s2, putting the dry materials weighed in the S1 into a stirrer for dry mixing; after the dry blending was completed, water was weighed in S1 and wet mixed.

6. The method for preparing conductive adhesive according to claim 5, wherein: in the S2, dry blending is completed after 20 minutes.

7. The method for preparing conductive adhesive according to claim 5, wherein: in the S3, the water temperature of the added water is 50 ℃.

Technical Field

The invention belongs to the technical field of conductive adhesives, and particularly relates to a breathable conductive adhesive for a lithium battery crucible and a preparation method thereof.

Background

The crucible is needed to be used in the graphitization production process of the raw materials of the lithium battery, and the crucible consists of a crucible body and a crucible cover. Because a certain gap exists between the crucible cover and the crucible body, arcing and electric corrosion are easily generated at the gap in the graphitization electrifying process, thereby reducing the service life of the carbide pot.

Therefore, it is necessary to bond the both, and to ensure conductivity and air permeability between the both.

Disclosure of Invention

Aiming at the technical problems, the invention provides the breathable conductive adhesive for the lithium battery crucible and the preparation method thereof, and the breathable conductive adhesive can ensure firm bonding, good conductivity and good breathability between the crucible body and the crucible cover and avoid arcing and electric corrosion in the electrifying process.

In order to solve the above problems, the invention adopts the technical scheme that:

the utility model provides a lithium cell is ventilative conducting resin for crucible, includes drier and water, and the weight ratio between water and the drier is 2 ~ 3: 1;

the dry material comprises the following components in parts by weight: 40-60 parts of graphite powder, 20-40 parts of dextrin, 5-10 parts of borax and 3-5 parts of sodium bicarbonate.

The weight ratio of water to dry materials is 2.2: 1;

the dry material comprises the following components in parts by weight: 60 parts of graphite powder, 30 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

The weight ratio of water to dry materials is 2.6: 1;

the dry material comprises the following components in parts by weight: 55 parts of graphite powder, 35 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

The weight ratio of water to dry materials is 3: 1;

the dry material comprises the following components in parts by weight: 50 parts of graphite powder, 40 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

A preparation method of a conductive adhesive comprises the following steps:

s1, weighing dry materials and water according to parts by weight;

s2, putting the dry materials weighed in the S1 into a stirrer for dry mixing; after the dry blending was completed, water was weighed in S1 and wet mixed.

In the S2, dry blending is completed after 20 minutes.

In the S3, the water temperature of the added water is 50 ℃.

Compared with the prior art, the invention has the following beneficial effects:

the breathable conductive adhesive can bond a gap between the crucible pot body and the crucible cover, has good conductivity and breathability, avoids arcing and electric corrosion in the graphitizing electrifying process, prolongs the service life of the carbide pot, meets the production requirements, and ensures the graphitizing process to be carried out smoothly.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a lithium cell is ventilative conducting resin for crucible, includes drier and water, and the weight ratio between water and the drier is 2 ~ 3: 1;

the dry material comprises the following components in parts by weight: 40-60 parts of graphite powder, 20-40 parts of dextrin, 5-10 parts of borax and 3-5 parts of sodium bicarbonate.

Example one

The weight ratio of water to dry materials is 2.2: 1;

the dry material comprises the following components in parts by weight: 60 parts of graphite powder, 30 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

The indexes of the breathable conductive adhesive prepared in the first embodiment are shown in table 1 below.

Example two

The weight ratio of water to dry materials is 2.6: 1;

the dry material comprises the following components in parts by weight: 55 parts of graphite powder, 35 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

The indexes of the breathable conductive adhesive prepared in the second embodiment are shown in table 1 below.

EXAMPLE III

The weight ratio of water to dry materials is 3: 1;

the dry material comprises the following components in parts by weight: 50 parts of graphite powder, 40 parts of dextrin, 7 parts of borax and 3 parts of sodium bicarbonate.

The indexes of the breathable conductive adhesive prepared in the third embodiment are shown in table 1 below.

TABLE 1

A preparation method of a conductive adhesive comprises the following steps:

s1, weighing dry materials and water according to parts by weight;

s2, putting the dry materials weighed in the S1 into a stirrer for dry mixing; after the dry blending was completed, water was weighed in S1 and wet mixed.

Further, in S2, dry blending was completed after 20 minutes.

Further, in S3, water was added at a temperature of 50 ℃.

Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.