A separator and a lithium ion battery comprising the separator
A diaphragm and dispersing aid technology, which is applied in the direction of secondary batteries, battery pack parts, circuits, etc., can solve the problems of ceramic layer powder falling off, diaphragm ceramic layer powder falling off, easy powder falling off, etc., and improve the uniformity of dispersion , to ensure effective play, to ensure the effect of the infiltration effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0097] (1) Preparation of positive electrode sheet
[0098] The positive active material NCM622, the binder PVDF, conductive carbon black and carbon nanotubes were dispersed in N-methylpyrrolidone, and a uniform positive electrode slurry was obtained after stirring, and the solid content contained 93wt% NCM622, 4wt% conductive carbon black and 1wt% % carbon nanotubes and 2 wt% binder PVDF, the solid content of the positive electrode slurry is 51%, and the viscosity is 5360 mPa·s. The positive electrode slurry is uniformly coated on both sides of the carbon-coated aluminum foil, and is baked at 100 ~ 130 ℃ for 4 hours. Roll compaction to 2.5g / cm 3 , get the positive electrode sheet;
[0099] (2) Preparation of negative electrode sheet
[0100] Disperse the negative electrode active material artificial graphite, SBR binder, conductive carbon black and sodium carboxymethyl cellulose in solvent water, and stir to obtain a uniform negative electrode slurry, wherein the solid cont...
Embodiment 2
[0107] The difference from Example 1 is that in Example 2, ① in step (3) prepares a separator coated with ceramic layers on both sides.
Embodiment 3
[0109] The difference from Example 1 is that the auxiliary agent added in ① and ② in step (3) in Example 3 is p-acetamido naphthol acetate.
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com