Abstract LiFePO 4 material has many virtues, such as rich raw materials, low price, excellent high temperature cycling performance and safety property. Lithium ion battery with positive electrode active is the most promising. However, compared other inherent disadvantage of poor electrical conductivity, it greatly limits its dynamic characteristics at temperature. In this paper, effect particle...

A Doyle–Fuller–Newman (DFN) model for the charge and discharge of nano-structured lithium iron phosphate (LFP) cathodes is formulated on basis that transport within nanoscale LFP electrode particles much faster than cell discharge, therefore not rate limiting. We present some numerical solutions to show relevant parameter values, a variety C-rates, it possible sharp fronts form intrude into fro...

BACKGROUND Suitable procedures for transport of blood samples from general practitioners to hospital laboratories are requested. Here we explore routine testing on samples stored and transported as whole blood in lithium-heparin or serum tubes. METHODS Blood samples were collected from 106 hospitalized patients, and analyzed on Architect c8000 or Advia Centaur XP for 35 analytes at base line,...

The 3D flowerlike iron sulfide (F-FeS) is successfully synthesized via a facile one-step sulfurization process, and the electrochemical properties as anode materials for lithium ion batteries (LIBs) are investigated. Compared with bulk iron sulfide, we find that the unique structural features, overall flowerlike structure, composed of several dozen nanopetals and numerous small size iron sulfid...

The effects of variable charging rates and incomplete charging in off-grid renewable energy applications are studied by comparing battery degradation rates and mechanisms in lead-acid, LCO (lithium cobalt oxide), LCO-NMC (LCO-lithium nickel manganese cobalt oxide composite), and LFP (lithium iron phosphate) cells charged with wind-based charging protocols. Poor pulse charge acceptance, particul...

Limbah baterai lithium-ion diproyeksikan akan meningkat seiring dengan peningkatan jumlah kendaraan listrik. Teknologi daur ulang menjadi perhatian penting terutama dalam mendukung percepatan program Kendaraan Bermotor Listrik Berbasis Baterai (KBLBB). Penelitian ini berfokus pada studi tekno-ekonomi pembangunan pilot plant Lithium Manganese Oxide (LMO) dan Iron Phosphate (LFP) secara pirometal...

The article deals with the actual problem of reducing air pollution by internal combustion engines public transport in urban and suburban traffic through use battery trolleybuses for passenger transportation. A method is proposed calculating capacity batteries autonomous movement trolleybuses, which can be used to calculate required trolleybus on city bus routes partially passing under overhead...

In order to solve the hidden trouble for long-term overcharging condition of lithium iron phosphate batteries, it is urgent develop protective batteries. A strategy combining autonomous equalization technology and passive proposed in this paper improve characteristics certain proportion oxidizing reductant added electrolyte ordinary battery. And a comparative test conducted between conventional...