Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-07-11 Hits: Popular:AG11 battery
What is the technical test method for CR2025 battery diaphragm?
1. Thickness
There are two important online control technologies for lithium-ion battery diaphragm thickness, one is MD (longitudinal) control and CD (transverse) control; the other is online machine vision test technology for diaphragms. The so-called MD control and CD control refer to the closed-loop control of thickness in the MD direction by controlling the speed of the feeding screw or the traction speed; and the data measurement through the scanning frame, and finally the data closed-loop control in the CD direction.
2. Curvature
Some companies also call it arch degree, which refers to the arc shape generated after the lithium-ion battery diaphragm is cut. When the arc shape is clear, it will cause uneven stacking, and vortex shape will be generated when winding, causing the pole piece to be exposed and short-circuited. The detection method is to lay the diaphragm strip flat on the table and compare the parallelism with the edge of the steel ruler to obtain the curvature of the diaphragm.
3. Air permeability
The time required for a certain volume of air to pass through the diaphragm under certain conditions is also called the Gurley value. Its size has a certain impact on the performance of lithium-ion batteries. The ASTM detection method is generally used.
4. Porosity
The ratio of the volume of the voids to the total volume. The detection methods include the liquid absorption calculation method and the detection method. The liquid absorption calculation method is to soak the CR2025 battery diaphragm in a known solvent, and calculate the volume of the voids occupied by the diaphragm by the liquid by measuring the mass difference before and after the diaphragm is soaked. The mercury intrusion detection method is to use external force to apply pressure to the diaphragm to press mercury into the pores of the diaphragm, and then calculate the porosity of the diaphragm by measuring the volume of the pressed mercury, and take the average value after multiple measurements.
Read recommendations:
Lithium iron phosphate battery pack advantages
Technologies for Improving Lithium - Battery Charging Efficiency
Last article:cr2032 3v lithium battery
Popular recommendation
lithium 18650 li ion battery
2023-03-22801520 polymer battery company
2023-03-2218650 1800mAh 3.7V
2023-03-2218650 battery pack Vendor
2023-05-09801520 lipo battery company
2023-03-2214250 280MAH 3.7V
2022-10-15No.1 card-mounted carbon battery R20
2023-06-28601525 170MAH 3.7V
2023-06-12Lithium-ion battery GN500 140000mAh
2022-08-19702535 600MAH 3.7V
2023-06-10Coin Battery CR 1130
2022-09-27602535 500mAh 3.7V
2022-07-01Cabinet type energy storage battery 15KWH
2022-11-08Electric vehicle lithium battery GN-24100-FAP
2022-09-27Coin Battery LR 1130
2022-10-15AAA NiMH batteries
2023-06-25li ion 18650 battery pack manufacturer
2023-06-2518650 battery pack 12v
2023-06-2518650 battery pack company
2023-06-25lithium battery 18650 3.7v
2023-06-25Vehicle Power Lithium-ion Batteries
2025-06-26Analysis of technical difficulties in concentrated photovoltaic power generation system
2024-01-24Use of lithium batteries by mobile phone manufacturers
2024-03-26Polymer Battery Intelligent Management System
2025-06-23Button battery type
2022-06-18Overview of lithium iron phosphate battery
2022-12-07the LiFePO4 battery for vehicles.lithium battery for solar energy storage system sales
2023-05-06Advantages of power batteries.4LR44 battery
2023-08-2218650 battery 3.7v 2000mah.Classification of 18650 lithium batteries
2023-10-13Lithium Battery Pack System Experiment.3.7v 18650 lithium battery
2023-09-21