Lithium ion battery cathode material and preparation method thereof
A technology for lithium-ion batteries and negative electrode materials, which can be applied to battery electrodes, circuits, electrical components, etc., and can solve problems such as affecting cycle stability and sheet shedding
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0018] A lithium-ion battery negative electrode material, the raw materials of which include anthracite and coal tar pitch, the anthracite is Taixi coal produced in Rujigou, Shizuishan City, Ningxia Hui Autonomous Region, and the coal tar pitch is medium temperature pitch.
[0019] A preparation method of lithium ion battery negative electrode material, is characterized in that, comprises the following steps:
[0020] In the first step, high-quality anthracite is graphitized in a graphitization furnace at 2800°C. The obtained graphitized anthracite has a fixed carbon content of 99.9% and a graphitization degree of 83%;
[0021] In the second step, the obtained graphitized anthracite is pulverized and classified, so that the obtained graphitized anthracite particle size ranges from 5 μm to 50 μm, D 50 21.45 μm;
[0022] In the third step, the carbon precursor is coated on the graphitized anthracite by a liquid-phase coating method, and the coal tar pitch is dissolved in toluen...
Embodiment 2
[0027] A lithium-ion battery negative electrode material, the raw materials of which include anthracite and phenolic resin, the anthracite is Taixi coal produced in Rujigou, Shizuishan City, Ningxia Hui Autonomous Region, and the phenolic resin is industrial grade.
[0028] A preparation method of lithium ion battery negative electrode material, is characterized in that, comprises the following steps:
[0029] In the first step, high-quality anthracite is graphitized in a graphitization furnace at 3000°C. The obtained graphitized anthracite has a fixed carbon content of 99.9% and a graphitization degree of 83%;
[0030] In the second step, the obtained graphitized anthracite is pulverized and classified, so that the obtained graphitized anthracite particle size ranges from 5 μm to 50 μm, D 50 21.45 μm;
[0031] In the third step, the carbon precursor is coated on the graphitized anthracite by a liquid-phase coating method, and the phenolic resin is dissolved in an ethanol sol...
Embodiment 3
[0036] A lithium-ion battery negative electrode material, the raw materials of which include anthracite and polyvinyl alcohol, the anthracite is Taixi coal produced in Rujigou, Shizuishan City, Ningxia Hui Autonomous Region, and the polyvinyl alcohol is industrial grade.
[0037] A preparation method of lithium ion battery negative electrode material, is characterized in that, comprises the following steps:
[0038] In the first step, high-quality anthracite is graphitized in a graphitization furnace at 3100°C. The obtained graphitized anthracite has a fixed carbon content of 99.9% and a graphitization degree of 83%;
[0039] In the second step, the obtained graphitized anthracite is pulverized and classified, so that the obtained graphitized anthracite particle size ranges from 5 μm to 50 μm, D 50 21.45 μm;
[0040] In the third step, the carbon precursor is coated on the graphitized anthracite by a liquid phase coating method, polyvinyl alcohol is dissolved in an aqueous so...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com