Electrode composite material for lithium ion capacitor, manufacturing method thereof and electrode manufacturing
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 technology of composite materials and manufacturing methods, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc., can solve the problems of difficult mixing of active materials, time-consuming preparation of composite materials, poor stability, etc., to achieve time-saving preparation, Cost saving and good stability
Active Publication Date: 2020-04-14
锦州凯美能源有限公司
View PDF6 Cites 2 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 object of the present invention is to provide an electrode composite material for lithium ion capacitors and its manufacturing method and electrode preparation, so as to solve the problems in the prior art that the preparation of composite materials is time-consuming, costly, and different types of active materials are not easy to mix uniformly and have poor stability.
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
[0038] Pretreatment of Composite Materials
[0039] Weigh 2g activated carbon, 85g111 type ternary nickel cobalt manganese oxide lithium (NCM111) and 2g1,4bis(2-N',N'-dimethylethylamine)-5,8-dihydroxyanthraquinonepropanesulfonate Acid ylide (EAPS), put into the mixing cup, then pour 100g of absolute ethanol into the mixing cup with activated carbon and EAPS, seal the mixing cup with plastic wrap and stir at high speed until uniform. The mixture was heated by a one-time microwave for 45 minutes at a heat treatment temperature of 160°C.
[0040] Electrode preparation
[0041] Weigh 200g deionized water and 30g absolute ethanol, mix well, add 1.5g carboxymethylcellulose (CMC), pretreated active material, 8gketjen carbon black and 2.0gSBR type binder in turn, disperse evenly, and make electrode.
Embodiment 2
[0043] Pretreatment of Composite Materials
[0044] Weigh 8g of activated carbon, 75g of 523-type ternary nickel cobalt manganese oxide (NCM523) and 8g of 1,4 bis(2-N',N'-dimethylethylamine)-5,8-dihydroxyanthraquinone butanesulfonate Acid ylide (EADS), put into the mixing cup, then pour 110g of absolute ethanol into the mixing cup containing the active substance, seal the mixing cup with plastic wrap and stir at high speed until uniform. The mixture is subjected to a one-time 180°C high-temperature vacuum treatment for 60 minutes, with a vacuum degree of 10 -2 Pa.
[0045] Electrode preparation
[0046] Weigh 220g deionized water and 35g absolute ethanol, mix well, add 1.5g carboxymethyl cellulose (CMC), pretreated active material, 6gketjen carbon black and 2.0gSBR class binder successively, disperse evenly, make electrode.
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 provides a manufacturing method of an electrode composite material for a lithium ion capacitor and manufacturing of an electrode. The preparation method of the electrode composite material for the lithium ion capacitor comprises the following steps of dissolving 40-96% of lithium-containing metal oxide, 2-30% of a carbon active material and 2-30% of hydroxyanthraquinone quaternary ammonium salt into an alcohol substance, uniformly dispersing to obtain a precursor; and sintering the precursor at a high temperature to obtain the electrode composite material for the lithium ion capacitor. The hydroxyanthraquinone quaternary ammonium salt is introduced to serve as an intermediate medium, two different types of active materials can be better combined together, performance of the two materials is brought into play to the maximum extent, and meanwhile the hydroxyanthraquinone quaternary ammonium salt can play a role in improving a capacity. According to the composite material formed through the method, a requirement for an electrode manufacturing process is greatly lowered, the requirement for an electrode manufacturing environment is reduced, a process is simpler and more convenient, operation is easy, and the electrode can be manufactured in various modes.
Description
technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to an electrode composite material for a lithium ion capacitor, a manufacturing method thereof, and an electrode preparation. Background technique [0002] For energy storage devices, it is a future development trend to have high energy, high power density and high cycle stability at the same time. Supercapacitors have high power density and high efficiency, but the energy density is not as good as other energy storage devices, such as lithium-ion batteries. How to better combine the two has become a research hotspot in recent years. Therefore, lithium-ion capacitors As a new type of energy storage device, it has attracted extensive attention. Lithium-ion capacitors combine capacitor active materials and battery active materials, that is, composite electrodes that contain both lithium-ion battery and supercapacitor composite materials. During the charge and discharge...
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