Regeneration method of lithium iron phosphate in retired lithium battery
A lithium iron phosphate and lithium iron phosphate battery technology, which is applied in secondary batteries, battery electrodes, battery recycling, etc., can solve the problems of potential safety hazards, poor performance of lithium batteries, poor conductivity and cycle performance, and achieve excellent cycle performance , Youke capacity, and the effect of environmental protection in the regeneration process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0048] Example 1
[0049] A method for regenerating lithium iron phosphate in a decommissioned lithium battery, the method comprising the following steps:
[0050] Disassemble the fully discharged lithium iron phosphate battery, disassemble it in a glove box, separate the positive electrode material, take the positive electrode material out, place it in absolute ethanol, ultrasonically clean it for 15 minutes, and centrifuge to remove a small amount of residual current collector components , Followed by drying at 60°C for 2h, crushing and grinding to a particle size of ≤1mm to obtain a semi-finished product of lithium iron phosphate. Combine 1000g of semi-finished product of lithium iron phosphate with 65g of 1500 mesh aluminum powder and 35g of B-mMPCFs fiber (2.66wt% boron-doped mesophase Pitch-based graphite fibers with a fiber length of 0.4~0.5μm) are mixed, and then placed in 2000g of absolute ethanol for wet ball milling for 1 hour to obtain a mixed slurry. The mixed slurry i...
Example Embodiment
[0051] Example 2
[0052] A method for regenerating lithium iron phosphate in a decommissioned lithium battery, the method comprising the following steps:
[0053] Disassemble the fully discharged lithium iron phosphate battery, disassemble it in a glove box, separate the positive electrode material, take the positive electrode material out, place it in absolute ethanol, ultrasonically clean it for 15 minutes, and centrifuge to remove a small amount of residual current collector components , Followed by drying at 60°C for 2 hours, crushing and grinding to a particle size ≤ 1mm to obtain a semi-finished product of lithium iron phosphate. Combine 1000g of semi-finished product of lithium iron phosphate with 55g of 1500 mesh aluminum powder and 45g of B-mMPCFs fiber (2.66wt% boron-doped mesophase Pitch-based graphite fibers with a fiber length of 0.4~0.5μm) are mixed, and then placed in 2000g of absolute ethanol for wet ball milling for 1 hour to obtain a mixed slurry. The mixed slurr...
Example Embodiment
[0054] Example 3
[0055] A method for regenerating lithium iron phosphate in a decommissioned lithium battery, the method comprising the following steps:
[0056] Disassemble the fully discharged lithium iron phosphate battery, disassemble it in a glove box, separate the positive electrode material, take the positive electrode material out, place it in absolute ethanol, ultrasonically clean it for 15 minutes, and centrifuge to remove a small amount of residual current collector components , Followed by drying at 60°C for 2 hours, crushing and grinding to a particle size ≤ 1mm to obtain a semi-finished product of lithium iron phosphate. Combine 1000g of the semi-finished product of lithium iron phosphate with 30g of 1500 mesh aluminum powder and 20g of B-mMPCFs fiber (2.66wt% boron-doped mesophase Pitch-based graphite fibers with a fiber length of 0.4-0.5μm) are mixed, and then placed in 2000g of absolute ethanol for wet ball milling for 1 hour to obtain a mixed slurry. The mixed s...
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap