Positive electrode material as well as preparation method and application thereof
A positive electrode material and positive electrode technology, applied in the field of positive electrode and lithium ion battery, positive electrode material, and its low-temperature synthesis, can solve the problems of limited performance improvement of high-nickel materials, segregation of transition metal elements, and impact on discharge capacity, etc., to reduce the occurrence of side reactions , short cycle and simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0044] This embodiment provides a positive electrode material, including a zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material and Co on its surface. 2 B layer, the zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material and Co x The mass ratio of the B layer is 1:0.006.
[0045] This embodiment also provides a method for preparing the above-mentioned positive electrode material, comprising the following steps:
[0046] (1) Nickel cobalt manganese aluminum hydroxide, LiOH and ZrO 2 Dry mixed in a mixer, calcined the dry mixed material in an ordinary box furnace at 850°C in an oxygen atmosphere for 8 hours, cooled, crushed and sieved to obtain a zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material ;
[0047] Wherein, the molar ratio of each element in nickel-cobalt-manganese-aluminum hydroxide is Ni:Co:Mn:Al=83:8:6:3, Li / (Ni+Co+Mn+Al) molar ratio=1.025:1, Nicke...
Embodiment 2
[0050] This embodiment provides a positive electrode material, including a zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material and Co on its surface. 2 B layer, the zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material and Co x The mass ratio of the B layer is 1:0.007.
[0051] This embodiment also provides a method for preparing the above-mentioned positive electrode material, comprising the following steps:
[0052] (1) Nickel cobalt manganese aluminum hydroxide, LiOH and ZrO 2 Dry mixed in a mixer, calcined the dry mixed material in an ordinary box furnace at 800°C in an oxygen atmosphere for 10 hours, cooled, pulverized and sieved to obtain a zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material ;
[0053] Wherein, the molar ratio of each element in nickel-cobalt-manganese-aluminum hydroxide is Ni:Co:Mn:Al=83:8:6:3, Li / (Ni+Co+Mn+Al) molar ratio=1.1:1, Nic...
Embodiment 3
[0056] The difference between this embodiment and embodiment 1 is that the zirconium-doped nickel-cobalt-manganese-aluminum single crystal positive electrode material and Co x The mass ratio of the B layer is 1:0.001.
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