نتایج جستجو برای: lithium iron phosphate
تعداد نتایج: 291469 فیلتر نتایج به سال:
This study focuses on the effect of electrolyte parameter variation upon performance lithium iron phosphate (LiFePO4) due to high demand electronic devices among consumers and industrial sectors that require efficicent LiFePO4 batteries. Hence, it is essential improve its by optimizing cell. The mathematical models lithium-ion batteries based drift-diffusion model consists transport equations i...
The work gives a detailed description of lithium-ion batteries and methods their use in technical devices various purposes. basic characteristics the main types industrial lithium are presented it is shown that lithium-iron-phosphate, lithium-titanate lithium-carbon-titanate currently used autonomous electric vehicles. also analyzed results bench tests terms temperature state at different value...
A sustainable, heat-resistant and flame-retardant cellulose-based composite nonwoven has been successfully fabricated and explored its potential application for promising separator of high-performance lithium ion battery. It was demonstrated that this flame-retardant cellulose-based composite separator possessed good flame retardancy, superior heat tolerance and proper mechanical strength. As c...
As a result of the extensive research and application LiFePO4 (LFP) in past > 20 years, there is now relatively in-depth understanding its structural stability, phase transition mechanism electrochemical properties. However, difficulties faced by further improving performance LFP due to intrinsic low electronic ionic conductivity have not yet been effectively solved. In order unlock effect m...
A novel recycling process of the conductive agent in spent lithium iron phosphate batteries is demonstrated. Wet chemistry applied recovering and phosphate, filter residue calcined with a small amount recovered N2 at 900 °C to form FeNP-codoped carbon catalyst, which exhibits low half-wave potential excellent durability for oxygen reduction. When rechargeable Zn–air battery, power density can...
Copper substituted lithium iron phosphate, with the olivine structure, has been synthesized hydrothermally as dark-brown single crystals with 15% of the iron sites occupied by cupric ions. Single crystal X-ray diffraction and magnetic susceptibility, combined with Li solid state NMR studies performed on powder sample, showed that 5% of the lithium ions also reside on the iron site, giving the f...
In this study we investigated the chemical-physical properties of mixtures containing the protic ionic liquid (PIL) N-butyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (PYRH4TFSI), propylene carbonate (PC) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in view of their use as electrolytes for lithium-ion batteries (LIBs). We showed that these electrolytic solutions might display c...
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