Lithium battery anode and preparation method, lithium battery and preparation method and application
A lithium battery and positive electrode technology, applied in the lithium battery positive electrode and its preparation, lithium battery and its preparation field, can solve problems such as instability, battery safety hazards, inability to transfer lithium ions, etc., to achieve simple process, easy control of conditions, high efficiency effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0056] Correspondingly, the embodiment of the present invention also provides a method for preparing the above-mentioned lithium battery anode. For the process flow of the lithium battery anode preparation method, please refer to image 3 , See also figure 1 , 2 . The positive electrode of lithium battery includes the following steps:
[0057] Step S01. Prepare a slurry containing a material that is electrically insulated and conductive to lithium ions: mixing the material that is electrically insulated and conductive to lithium ions and a solvent to prepare a slurry;
[0058] Step S02: The slurry is covered on the positive electrode: the slurry prepared in Step S01 is covered on the positive electrode containing the positive electrode material layer 2, and the protective layer 3 is formed after drying treatment to obtain the lithium battery positive electrode.
[0059] Specifically, in the above step S01, the material that insulates electrons and conducts lithium ions is as describe...
Example Embodiment
[0080] Example 1
[0081] A lithium battery positive electrode and a preparation method thereof, and a lithium ion battery:
[0082] The microstructure of the lithium battery cathode figure 2 As shown, the positive electrode of the lithium battery includes a current collector 1, a positive electrode material layer 2 bonded on the surface of the current collector 1, and a protective layer 3 bonded on the surface of the positive electrode material layer 2 and on the pore wall of the positive electrode material layer 2. Among them, the protective layer 3 contains lithium carbonate.
[0083] The positive electrode of the lithium battery is prepared as follows:
[0084] Preparation of positive electrode: LiNi with a mass ratio of 80:10:10 0.5 Mn 1.5 O 4 , Conductive carbon, binder (polyvinylidene fluoride) and a certain amount of N-methylpyrrolidone solvent are uniformly mixed (the solid content of the final mixed solution is 45%) to obtain a positive electrode slurry, which is coated On...
Example Embodiment
[0091] Example 2
[0092] A lithium battery positive electrode and a preparation method thereof, and a lithium ion battery:
[0093] The structure of the positive electrode of the lithium battery is the same as the positive electrode of the lithium battery in Example 1, except that the protective layer contains lithium carbonate, and the concentration of the protective layer precursor solution is 10%.
[0094] The positive electrode of the lithium battery is prepared as follows:
[0095] Preparation of the positive electrode: refer to the preparation of the positive electrode in Example 1;
[0096] Prepare a slurry containing materials that are electrically insulated and conductive to lithium ions: lithium hydroxide is dissolved in water, and an aqueous solution with a mass percentage of 10% is prepared;
[0097] Positive electrode modification: The prepared positive electrode was immersed in a 10% lithium hydroxide aqueous solution, and the positive electrode sheet taken out after 30 mi...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Thickness | 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.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap