Influence of electrode design on the electrochemical performance of Li3V2(PO4)3/C nanocomposite cathode in lithium ion batteries

A review of nanofibrous structures in lithium ion batteries

“…Combining the high electron conductivity of C and the highvoltage high theoretical capacity of vanadium [132], selfsupporting Li 3 V 2 (PO 4 ) 3 /C nanofiber (CNF) composite cathodes have been prepared [37,133]. Li 3 V 2 (PO 4 ) 3 /CNF composites with good electrochemical performances at high current rates (130 mA h g À1 and 113 mA h g À1 at the 1st and 300 th cycle, respectively, at 20 C) were obtained using PVP as the precursor for the highly conductive C phase [25].…”

“…The selfsupporting property of nanofibers is considered a basic advantage, as it obviates the need for a binder and increases the porosity of the structure (Fig. 4) [37,133].…”

Electrospun P2-type Na2/3(Fe1/2Mn1/2)O2 Hierarchical Nanofibers as Cathode Material for Sodium-Ion Batteries

“…Electrospinning is a low-cost, largescale, and facile one-pot synthesis technique for continuous nanofibers, and such nanofibrous electrodes offer high porosity, good interfacial contact, and well-guided charge transfer towards the current collector. [23][24][25][26] There have been no reports to date on 1D nanofibrous sodium metal oxide cathodes for SIBs.…”

“…Such self-aggregation is barely seen for the nanofibers because of the hierarchical crystallite formation at localized sites along the fiber structure during the calcination, which reduces the diffusion in the sintering process. 23 In addition, capacity fade can be observed for the NP sample from the initial cycle to the final cycle, which may be due to the volumetric expansion of the material during repeated Na-ion intercalation/deintercalation processes during cycling and loss of electrical contact between the active material and the current collector.…”

Electrochemical performances of Li3V2-(4/3)Ti (PO4)3/C as cathode material for Li-ion batteries synthesized by an ultrasound-assisted sol–gel method

“…Nevertheless, the low intrinsic electronic conductivity (~10 -7 S·cm -1 ) and low Li + diffusion coefficient (10 -10~1 0 -9 cm 2 · s -1 ) of Li 3 V 2 (PO 4 ) 3 limit its practical application largely [17] [18] . Surface coating, especially carbon coating, can prevent the direct contact of the cathode material and electrolytes and was proves to be an effective way to decrease the decomposition of the electrolytes electro-catalyzed by transition metals [19][20][21][22] . In our previous study we discussed the influence of pyrolytic carbon of phenolic resin and PVDF on the electrochemical performance of Li 3 V 2 (PO 4 ) 3 [23] [24] .…”