Surface-coated ternary cathode material and preparation method thereof
A positive electrode material and surface coating technology, which is applied in the field of surface coated ternary positive electrode materials and its preparation, can solve the problems of failure to meet commercial requirements, low specific capacity and cycle performance, unfavorable electron conduction, etc., and achieve increased interface Effects of stability, enhanced electrochemical performance, and improved cycle retention
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] Measure 1 mol of LiNi 0.8 co 0.1 mn 0.1 o 2 As the material to be coated, due to the existence of residual LiOH on the surface, the material is strongly alkaline, with a pH of about 12. At the same time, LiNi 0.8 co 0.1 mn 0.1 o 2 The residual lithium on the surface acts as Li 2 NiTiO 4 Lithium source, take 0.05mol nano-titanium oxide as the titanium source, measure 0.05mol nickel hydroxide as the nickel source, mix the above materials uniformly by ball milling, and perform calcination at 400-800°C under air atmosphere for 10- 20 h. Obtaining surface-coated LiNi 0.8 co 0.1 mn 0.1 o 2 , namely Li 2 NiTiO 4 coated LiNi 0.8 co 0.1 mn 0.1 o 2 .
[0030] according tofigure 1 , figure 2 The test results show that the surface-coated LiNi 0.8 co 0.1 mn 0.1 o 2 Fine nanoparticles are evenly distributed on the surface of the particles, and the appearance of these nanoparticles indicates that the Li 2 NiTiO 4 In LiNi 0.8 co 0.1 mn 0.1 o 2 The surface...
Embodiment 2
[0039] Measure 1 mol of LiNi 0.8 co 0.1 mn 0.1 o 2 As the material to be coated, due to the existence of residual LiOH on the surface, the material is strongly alkaline, with a pH of about 12. At the same time, LiNi 0.8 co 0.1 mn 0.1 o 2 The residual lithium on the surface acts as Li 2 CoO 4 Lithium source, measure 0.05 mol of titanium dioxide as the titanium source, measure 0.05 mol of manganese nitrate as the manganese source, mix the above materials uniformly by ball milling, and perform calcination at 400-800°C for 10-20 h in an air atmosphere . Obtaining surface-coated LiNi 0.8 co 0.1 mn 0.1 o 2 , namely Li 2 MnTiO 4 coated LiNi 0.8 co 0.1 mn 0.1 o 2 .
Embodiment 3
[0041] Measure 1 mol of LiNi 0.8 co 0.1 mn 0.1 o 2 As the material to be coated, due to the existence of residual LiOH on the surface, the material is strongly alkaline, with a pH of about 12 and LiNi 0.8 co 0.1 mn 0.1 o 2 The residual lithium on the surface acts as Li 2 CoO 4 Lithium source, measure 0.05 mol of titanium dioxide as the titanium source, measure 0.05 mol of cobalt hydroxide as the cobalt source, mix the above materials uniformly by ball milling, and perform calcination at 400-800°C under air atmosphere for 10-20 h. Obtaining surface-coated LiNi 0.8 co 0.1 mn 0.1 o 2 , namely Li 2 CoO 4 coated LiNi 0.8 co 0.1 mn 0.1 o 2 .
PUM
Property | Measurement | Unit |
---|---|---|
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