source:other news
release time:2023-02-24
Hits:0
Popular:

The substrate material used in lithium -ion battery diaphragm is polyolefin, and polyolefins have excellent mechanical properties, chemical stability and relatively cheap characteristics. The diaphragm material mainly includes polypropylene, polyethylene materials and additives. The substrate material is directly related to the mechanical properties of the diaphragm and the infiltration of the electrolyte. Although in recent years, there have been studies for lithium -ion battery diaphragms such as polytin fluoride, cellulose composite membrane and other materials, so far the commercialized battery diaphragm materials are still mainly used in polyethylene and polypropylene microres. The technology of lithium -ion battery diaphragm is mainly wet and dry method. The dry method has two types of one -way stretching technology and two -way stretching process.
1. The wet process of lithium -ion battery diaphragm production is also known as phase separation method or armal phase separation method. The high -boiling small molecules are added as a pores into a polyolefin, which is heated and melted into a uniform system. Separate, use organic solvents to extract small molecules after stretching, and can prepare mutually interactive microne membrane materials.
The representative companies that adopt the law include Japan Asaka, Dongfan, and ENTEK in the United States. It is currently mainly used for single -layer PE diaphragm. Although the pore rate and permeability are controlled, the wet process needs to consume a large amount of organic solvents. On the one hand, it is necessary to consider the recycling and utilization of solvents.
2. The two -way stretching process of lithium -ion battery -proofing method of the production of lithium -ion battery separation is a process developed by the Institute of Chemistry of the Chinese Academy of Sciences in the early 1990s. By adding nuclear effects to polypropylene.
The β crystal improvement agent, using the differences between the density between different phase of polypropylene, a crystal transformation occurred during the stretching process to form micropores.
3. The one -way stretching process of lithium -ion battery separation film production is the one -way stretching process of the one -way stretching process. It is a method of producing high -end crystal to polypropylene or polyethylene film through the method of producing hard elastic fibers. Giver -crystal -oriented orientation thin film. This thin film first stretches at low temperature to form micro -defects, and then the defect is opened at high temperature to form micropores.
Read recommendations:
lithium batteries for boats price
Home Energy Storage System 51.2V 150Ah LiFePo4 Battery Pack
The Power of 18650 3.7V Batteries: A Comprehensive Look
What are the advantages of using lithium battery for UPS power supply battery?
Last article:Which of the polymer battery cells and lithium battery cells is better?
Next article:Lithium iron phosphate battery pack structure design
related suggestion
solar batteries for home company
2023-03-20solar power battery storage Factory
2023-03-20solar battery storage system sales
2023-03-20deep cycle marine battery Processing
2023-04-07solar power battery storage wholesale
2023-04-07lithium ion golf cart batteries sales
2023-03-2212 volt deep cycle marine battery
2023-05-0812v 100ah battery
2023-05-0848 volt golf cart batteries
2023-05-0812v marine battery
2023-05-08solar battery for house
2023-05-08powerstation 2000 watt
2023-05-085kWh Household Energy Storage System 51.2V 100Ah Battery LiFePo4 for Solar Power
2022-09-2951.2V 200Ah Wall Mounted Battery Pack for Home Energy Storage System
2023-06-19Low Temperature Lithium Battery 26650 Cell
2022-10-18HB-S1200 1200W Waterproof IP54 Solar Portable Power Station Support Wireless Charge
2022-09-29Marine Boat 12V 24V 36V Deep Cycle RV Lithium LiFePo4 Battery for Trolling Motor
2022-09-30Important factors affecting internal resistance of battery
2022-11-11The Excellence of the Samsung 25R 18650 Battery: High Performance and Reliability
2025-03-1912V 100Ah Battery vs 24V 100Ah Battery vs 48V 100Ah Battery
2025-05-22Elevate Your Power Solutions: The Efficiency and Performance of 72 Volt Lithium Batteries
2025-03-17Samsung 21700 Cells: The Industrial Standard for High-Performance Lithium-Ion Battery Systems
2025-05-21The reasons for customization and development with polymer batteries.lithium marine batteries company
2023-04-06What safety performance tests should 26650 lithium-ion batteries pass?
2022-12-06The working principle of alkaline zinc -manganese battery.solar powered battery pack wholesaler
2023-04-14What battery is used for heating clothing batteries?solar generator for camping
2023-03-10Parameters and specifications of UAV battery
2022-12-30