Pi-Membran und Energiespeicherbatterie
Nachhaltig, sicher und recycelbar Aus Altreifen nachhaltige Ausgangsstoffe für Lithium -Ionen-Batterien gewinnen, wie sie etwa in Elektroautos oder Laptops eingesetzt werden? Daran
What is Pi/Speek Membrane conductivity?
The proton conductivity of PI/SPEEK membranes, an important indicator for proton exchange membrane, was tested from 20 °C to 60 °C and 100% RH. To get an equilibrium state, all membranes were soaked into water for 24 h.
What is Pi membrane used for?
The PI membrane, especially for non-woven fabric, has been widely used as the separator for improving the mechanical and electrochemical performances of traditional LIBs , , , . Also, part of the ordered stacking structure of PEO molecular chains will be disrupted due to the existence of PI.
What is Pi/Speek/Pi nanofiber composite membrane?
The sandwich structure PI/SPEEK/PI nanofiber composite membrane was proposed. The proton conductivity of PI/SPEEK/PI membrane with high durability was achieved. The interaction between PI nanofiber and SPEEK matrix was confirmed by in-suit FTIR, XPS and TEM.
Why is Pi important in PEO electrolyte membrane?
Also, part of the ordered stacking structure of PEO molecular chains will be disrupted due to the existence of PI. Therefore, PI can not only be used as a support to prevent PEO electrolyte membrane from collapsing and failing during operation, but also reduce the crystallinity of PEO [7, 11, 15, 17, 23, 24].
Can Pi polymer support PEO based solid electrolyte membrane?
Therefore, PI can not only be used as a support to prevent PEO electrolyte membrane from collapsing and failing during operation, but also reduce the crystallinity of PEO [7, 11, 15, 17, 23, 24]. However, there are few reports on the mechanical and electrochemical enhancement of PEO-based solid electrolyte by the PI polymer material.
What are the characteristics of Pi/Speek membrane?
IEC, swelling ratio, water uptake and proton conductivity of PI/SPEEK membrane The SPEEK is composed of the hydrophobic main chain and hydrophilic sulfonic acid on the side chain [ 8 ], and more sulfonic acid on the side chain can absorb more water.