Unlock instant, AI-driven research and patent intelligence for your innovation.
Slurry for lithium-ion battery and slurry synthesizing method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A lithium-ion battery and slurry technology, which is applied in secondary batteries, circuits, electrode manufacturing, etc., can solve the problems of unstable slurry viscosity, poor uniformity, and low slurry mixing process efficiency, and is conducive to subsequent coating. Cloth technology, good uniformity, and the effect of improving the quality of subsequent coating
Inactive Publication Date: 2017-05-10
DONGGUAN CHUANGMING BATTERY TECH
View PDF4 Cites 18 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a lithium ion battery slurry and a slurry mixing method, aiming at solving the problems of unstable viscosity, poor uniformity, and low efficiency of the slurry mixing process in the prior art. technical problem
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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] This embodiment provides a lithium-ion battery slurry mixing method, which specifically includes the following steps:
[0034] S11: Calculated in parts by weight, weigh 70 parts of active material, 0.5 part of binder, 0.5 part of conductive agent and 20 parts of solvent, and first put the active material, binder and conductive agent at a temperature of 40 degrees and a revolution speed of Stir for 10 minutes under the condition of 8 revolutions / minute to obtain a dry blended material.
[0035] S12: Add 30 wt% solvent (ie 6 parts of solvent) to the above dry blended material, stir for 7 minutes at a temperature of 40 degrees, and a revolution speed of 15 rpm, and scrape for 2 minutes;
[0036] Further, the material obtained after the above-mentioned scraping was stirred for 20 minutes at a temperature of 40 degrees and a revolution speed of 15 rpm, and scraped for 1 minute.
[0037] S13: Add 35wt% solvent (i.e. 7 parts of solvent) to the material obtained after the fina...
Embodiment 2
[0042] This embodiment provides a lithium-ion battery slurry mixing method, which specifically includes the following steps:
[0043] S21: Calculated in parts by weight, weigh 75 parts of active material, 1 part of binder, 1 part of conductive agent and 25 parts of solvent, and first put the active material, binder and conductive agent at a temperature of 40 degrees and a revolution speed of Under the condition of 6 rev / min, stir for 8 minutes to obtain a dry blended material.
[0044] S22: Add 35wt% solvent (ie 8.75 parts of solvent) to the above-mentioned dry blended material, stir for 5 minutes at a temperature of 50 degrees, and a revolution speed of 12 rpm, and scrape for 1 minute;
[0045] Further, the material obtained after scraping is stirred for 15 minutes at a temperature of 50 degrees and a revolution speed of 12 rpm, and scraped for 1 minute.
[0046] S23: Add 40wt% (i.e. 10 parts of solvent) solvent to the material obtained in the last scraping of the above step...
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
Login to View More
Abstract
The invention belongs to the technical field of lithium-ion batteries, and particularly relates to slurry for a lithium-ion battery and a slurry synthesizing method. The slurry synthesizing method comprises the following steps of weighing an active substance, a binder, a conductive agent and a solvent and carrying out dry mixing treatment on the active substance, the binder and the conductive agent to obtain a dry mixed material; adding 30wt%-35wt% of a solvent to the dry mixed material for first mixing and dissolving and carrying out first scraping; adding 35wt%-40wt% of a solvent to the material which is scraped for the first time for second mixing and dissolving and carrying out second scraping; and adding the remaining solvent to the material which is scraped for the second time and carrying out third mixing and dissolving to obtain the synthesized slurry. The slurry for the battery is prepared through the slurry synthesizing method. According to the slurry synthesizing method, the slurry synthesizing time is shortened, the production efficiency is improved, the discharged slurry is stable in viscosity and the slurry uniformity is improved.
Description
technical field [0001] The invention belongs to the technical field of lithium-ion batteries, and in particular relates to a lithium-ion battery slurry and a slurry mixing method. Background technique [0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li + Intercalation and deintercalation back and forth between two electrodes: when charged, Li + It is deintercalated from the positive electrode, inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Batteries generally use materials containing lithium elements as electrodes, which are representatives of modern high-performance batteries. [0003] In the lithium-ion battery slurry, the dispersion and uniformity of granular active materials directly affe...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More