Glue solution preparation method and product thereof
A technology of glue and equipment, applied in the field of glue preparation, can solve the problems of powder group, slow glue-making efficiency, inability to be uniformly dispersed, etc., and achieve the effect of shortening the required time and dispersing evenly.
Pending Publication Date: 2021-10-26
惠州锂威新能源科技有限公司
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Problems solved by technology
[0004] One of the purposes of the present invention is to provide a method for preparing glue, which solves the problems of slow glue-making efficiency, inability to be uniformly dispersed, and powder lumps after glue-making in the preparation process of some glues, especially for Gluing of carboxymethyl cellulose and its derivatives, the preparation method of the present invention effectively reduces the time required for gluing, and the glue is uniform
Method used
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Embodiment 1
[0026] Such as Figure 5 Shown, a kind of preparation method of glue solution comprises the following steps:
[0027] S1. Add 30% of the total mass of deionized water required to prepare the glue into the glue making equipment;
[0028] S2. Turn on the gluing equipment for stirring, add carboxymethyl cellulose powder and its derivative powder to the gluing equipment at a feeding rate of 0.6-0.7kg / min under the condition of 500-600rpm / min, and continue stir;
[0029] S3. Add 20% of the total mass of deionized water required to prepare the glue into the glue making equipment, and continue stirring;
[0030] S4. Add 50% of the remaining mass of deionized water required for the preparation of the glue into the glue making equipment, and continue stirring to complete the preparation of the glue.
[0031] Further, in step S2, after adding carboxymethyl cellulose powder and its derivative powder, the stirring condition is: stirring at 500-600 rpm / min for 40-70 min. Keep the stirr...
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The invention provides a glue solution preparation method. The preparation method comprises the following steps of S1, adding 20-40% of the total mass of a solvent required for preparing the glue solution into gluing equipment, S2, starting the gluing equipment for stirring, adding a substance needing to prepare a glue solution into the gluing equipment at the same time, and continuously stirring, S3, adding 10-30% of the total mass of a solvent required for preparing the glue solution into the gluing equipment, and continuously stirring, and S4, adding the residual mass of the solvent required for preparing the glue solution into the gluing equipment, and continuously stirring to complete the preparation of the glue solution. Compared with the existing gluing process, the method disclosed by the invention has the advantages that the time required for preparing the uniform glue solution is greatly shortened, and under the same time, the obtained glue solution is uniformly dispersed, and powder balls do not exist after the gluing is finished.
Description
technical field [0001] The invention relates to the field of lithium batteries, in particular to a method for preparing glue and products thereof. Background technique [0002] The existing gluing of carboxymethyl cellulose and its derivatives is to add the solvent and the dry powder of carboxymethyl cellulose or its derivatives together to the dissolving device according to the required solid ratio, and carry out carboxymethyl cellulose on this basis. Preparation of cellulose-based or its derivative glue. But this method still has the following problems: carboxymethyl cellulose and its derivatives will swell when they come into contact with deionized water during dissolution, and then form a high-viscosity gel layer, thereby preventing further penetration of water, and due to this When the overall solution viscosity is low, that is, the viscous force of the fluid is small, so the powder blocks that are far away from the dispersing disc during the gluing process cannot reac...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01F1/00B01F7/18B01F15/00H01M4/62H01M6/14H01M10/052
CPCH01M4/621H01M6/14H01M10/052Y02E60/10
Inventor 吕智海谌名昭黄少南覃志华郑明清杨山
Owner 惠州锂威新能源科技有限公司