This review summarizes and discusses lithium-ion battery separators from a new perspective of safety (chemical compatibility, heat-resistance, mechanical strength and anti
AI Customer ServiceZnO modified films with high performance were prepared by doping nanometer ZnO particles. The addition of ZnO nanoparticles hinders the regeneration of ANF hydrogen
AI Customer ServiceWe briefly introduce the MOF-modified composite diaphragm performance testing methods for lithium–sulfur batteries to obtain chemical information, diaphragm surface
AI Customer ServiceThe invention provides a modified diaphragm, a lithium ion battery and an electric device,
AI Customer ServiceLithium–sulfur batteries (LSBs) with metal lithium as the anode and elemental sulfur as the cathode active materials have attracted extensive attention due to their high
AI Customer ServiceThe BN diaphragm can achieve uniform nucleation of lithium, enhance the inhibition of lithium dendrite growth, and improve the overall electrochemical performance. In
AI Customer ServiceThe lithium titanate modified diaphragm proposed in this paper is a promising strategy to solve the problem of lithium dendrite formation, and the LTO@PP-based cell is an
AI Customer ServiceWe briefly introduce the MOF-modified composite diaphragm performance
AI Customer Servicea modified diaphragm of lithium-sulfur battery with thickness of 10 μmThe polypropylene porous membrane is a diaphragm substrate, one surface of the diaphragm substrate, which is
AI Customer ServiceThe invention provides a modified diaphragm, a lithium ion battery and an electric device, which comprise a base film and a first coating; a first coating layer is coated on at least one...
AI Customer ServiceThe shuttle problem of polysulfides has always been a major challenge for lithium–sulfur batteries. Carbon-based materials are favored in diaphragm modification
AI Customer ServiceThe BN diaphragm can achieve uniform nucleation of lithium, enhance the
AI Customer ServiceLithium-sulfur battery with iron nitride nanoparticles growing on reduced graphene oxide in situ as modified diaphragm material and preparation method of lithium-sulfur battery
AI Customer ServiceIn order to study the effect of diaphragm modification on the high-rate charge and discharge performance of lithium sulfur battery, the rate performance of common
AI Customer ServiceIn order to prove that the diaphragm modified by Ni 0.2 Mo 0.8 N can greatly improve the electrochemical performance of Lithium-sulfur battery. The cyclic voltammetry
AI Customer ServiceThe lithium-ion migration numbers of ZnB modified diaphragm are 0.41, while the lithium-ion migration numbers of ZnO modified diaphragm and routine diaphragm are 0.3 and
AI Customer ServiceThe invention provides a modified diaphragm for a lithium metal battery and a preparation method thereof, wherein the modified diaphragm has the capability of carrying out...
AI Customer ServiceThe role of lithium battery diaphragm: The key role of the diaphragm in lithium-ion batteries is reflected in two levels: First, ensure the safety factor of rechargeable batteries.
AI Customer ServiceThe diaphragm did not shrink when heated at 160 °C. In a lithium-ion battery system with lithium iron phosphate (LiFePO4) as the cathode material, the capacity remained
AI Customer ServiceThe invention provides a modified diaphragm for a lithium metal battery and a preparation
AI Customer ServiceThe modified diaphragm of the lithium-sulfur battery can prolong the migration path of
AI Customer ServiceThe catalytic effect of the catalyst-modified diaphragms on the redox of polysulfides was further investigated, which suppressed the shuttle effect and achieved higher sulfur utilization to
AI Customer ServiceThe modified diaphragm of the lithium-sulfur battery can prolong the migration path of polysulfide, can effectively inhibit the shuttle of polysulfide in the diaphragm of the...
AI Customer ServiceThe diaphragm is an important part of the battery, which has an irreplaceable unique function [20]. Through reasonable functional design and modification of traditional
AI Customer ServiceThe lithium-ion migration numbers of ZnB modified diaphragm are 0.41, while the lithium-ion migration numbers of ZnO modified diaphragm and routine diaphragm are 0.3 and 0.21. When the battery is working, the charge transfer rate of lithium ions reflects the charging and discharging characteristics of the battery.
In addition, carbon materials are used as modified diaphragms, which play a certain role in accelerating redox kinetics and improving the electrochemical performance of lithium-sulfur batteries because of their good electrical conductivity, mechanical loading, and heat resistance [ 27 ].
The routine diaphragm has a general affinity for organic electrolytes, but its good wettability and liquid retention greatly impact the performance of lithium-ion batteries.
The results show that the zinc borate modified diaphragm increases the lithium-ion migration number of the battery. This is because the Lewis acid sites of zinc borate can absorb anions in the battery system, and the increase in the migration number of lithium ions will help improve rate performance .
Coating high-temperature-resistant materials on the surface of the diaphragm help the diaphragm maintain a stable state and integrity at high temperatures, thereby improving the safety and stability of the lithium-sulfur battery. The results after keeping the three kinds of diaphragms at 160°C for 30 min are shown in Fig. 9.
In addition, it is found that the initial capacity of the modified diaphragm can reach 1318.8 mAh g -1 at 0.2C current density. And the initial capacity can still reach 1035.6 mAh g -1 even at 1 C current density, after 500 cycles, the capacity retention rate is 60.9%, which has good rate performance and cycle stability. 1. Introduction
We are deeply committed to excellence in all our endeavors.
Since we maintain control over our products, our customers can be assured of nothing but the best quality at all times.