Ternary cathode material, precursor thereof, and preparation method of ternary cathode material and precursor
A cathode material and precursor technology, which is applied in the field of battery materials, can solve problems such as no solutions, and achieve the effects of optimal cycle rate performance, improved storage and electrochemical performance, and improved tap density.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0053] A LiNi with a special structure 0.8 co 0.1 mn 0.1 o 2 Ternary positive electrode material, its preparation method comprises the following steps:
[0054] Preparation of Ternary Oxide Precursor by S1 Spray Pyrolysis
[0055] NiCl 2 , CoCl 2 and MnCl 2 Prepare a solution with a total metal ion concentration of 0.5mol / L according to the ratio (molar ratio) of 8:1:1. After the solution is ultrasonically atomized, it is loaded into the pyrolysis furnace by an oxygen carrier gas, and the flow rate of oxygen is 4L / min. , pyrolyzed at 750 °C to obtain Ni 0.8 co 0.1 mn 0.1 o x After the precursor, it is collected by upper nickel mesh filtration;
[0056] S2 Prepare co-precipitation reaction seed crystals
[0057] 2g Ni 0.8 co 0.1 mn 0.1 o x The oxide precursor was added to the bottom of the co-precipitation reactor as a seed crystal; 500ml of 3mol / L ammonia water was configured, and 300mL was poured into the coprecipitation reactor as the bottom liquid, and slowl...
Embodiment 2
[0068] A LiNi with special structure 0.85 co 0.075 mn 0.075 o 2 Ternary positive electrode material, its preparation method comprises the following steps:
[0069] Preparation of Ternary Oxide Precursor by S1 Spray Pyrolysis
[0070] NiCl 2 , CoCl 2 and MnCl 2 According to the ratio (molar ratio) of 34:15:15, a solution with a total metal ion concentration of 0.5mol / L was prepared. After the solution was ultrasonically atomized, it was loaded into the pyrolysis furnace by oxygen, and the flow rate of oxygen was 4L / min. Ni obtained at 780°C 0.85 co 0.075mn 0.075 o x After the precursor, it is collected by upper nickel mesh filtration;
[0071] S2 Prepare co-precipitation reaction seed crystals
[0072] 1.8g Ni 0.85 co 0.075 mn 0.075 o x The oxide precursor was added to the bottom of the co-precipitation reactor as a seed crystal; 500ml of 3mol / L ammonia water was configured, and 200mL was poured into the coprecipitation reactor as the bottom liquid, and slowly s...
Embodiment 3
[0083] A ternary cathode material LiNi with a special structure 0.5 co 0.25 mn 0.25 o 2 @LiNi 0.9 co 0.05 mn 0.05 o 2 , its preparation method comprises the following steps:
[0084] Preparation of Ternary Oxide Precursor by S1 Spray Pyrolysis
[0085] NiCl 2 ·6H 2 O, CoCl 2 ·6H 2 O, MnCl 2 4H 2 O is dissolved in water according to 18:1:1 (molar ratio) to form a solution with a total metal ion concentration of 0.6mol / L. After the solution is ultrasonically atomized, it is loaded into the pyrolysis furnace by oxygen, and the flow rate of oxygen is 6L / L. min, Ni obtained by pyrolysis at 750°C 0.9 co 0.05 mn 0.05 o x After the precursor, it is collected by upper nickel mesh filtration;
[0086] S2 Prepare co-precipitation reaction seed crystals
[0087] 2g Ni 0.9 co 0.05 mn 0.05 o x The oxide precursor was added to the bottom of the co-precipitation reactor as a seed crystal; 500ml of 2mol / L ammonia water was configured, and 300mL was poured into the coprec...
PUM
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