Detail publikačního výsledku

In-situ X-ray study of carbon coated LiFePO4 for Li-ion Battery in Different State of Charge

CHLADIL, L.; KUNICKÝ, D.; ČECH, O.; VANÝSEK, P.

Originální název

In-situ X-ray study of carbon coated LiFePO4 for Li-ion Battery in Different State of Charge

Anglický název

In-situ X-ray study of carbon coated LiFePO4 for Li-ion Battery in Different State of Charge

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

This paper is focused on the structural characterization of commercially exploited carbon coated LiFePO4 cathode material in different state of charge. The material was measured inside of modified ECC-Opto-Std cell and X-ray characterization was performed using Rigaku Miniflex 600 HR diffractometer. The study compare two approaches used for characterization of electrodes in different state of charge: a) Fast galvanostatic mode with potential limitation typically used in the ex-situ characterizations and b) Operando measurement at slow galvanostatic charging (0.1 C). Lattice parameters and volume changes were evaluated by Rietveld refinement and results indicate that carbon coating of particles does not have any influence on the volume changes of materials. We found the full compliance of lattice parameters changes and therefore also volume changes with those reported for pure LFP material in other reported studies.

Anglický abstrakt

This paper is focused on the structural characterization of commercially exploited carbon coated LiFePO4 cathode material in different state of charge. The material was measured inside of modified ECC-Opto-Std cell and X-ray characterization was performed using Rigaku Miniflex 600 HR diffractometer. The study compare two approaches used for characterization of electrodes in different state of charge: a) Fast galvanostatic mode with potential limitation typically used in the ex-situ characterizations and b) Operando measurement at slow galvanostatic charging (0.1 C). Lattice parameters and volume changes were evaluated by Rietveld refinement and results indicate that carbon coating of particles does not have any influence on the volume changes of materials. We found the full compliance of lattice parameters changes and therefore also volume changes with those reported for pure LFP material in other reported studies.

Klíčová slova

X-ray; Crystallography; LiFePO4; Li-ion; Battery; Volume changes

Klíčová slova v angličtině

X-ray; Crystallography; LiFePO4; Li-ion; Battery; Volume changes

Autoři

CHLADIL, L.; KUNICKÝ, D.; ČECH, O.; VANÝSEK, P.

Rok RIV

2019

Vydáno

01.12.2018

Nakladatel

The Electrochemical Society

Místo

Pennington, NJ, USA

Kniha

ECS Transaction

Edice

19th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2018)

ISSN

1938-5862

Periodikum

ECS Transactions

Svazek

87

Číslo

1

Stát

Spojené státy americké

Strany od

1

Strany do

7

Strany počet

8

BibTex

@inproceedings{BUT151343,
  author="Ladislav {Chladil} and Daniel {Kunický} and Ondřej {Čech} and Petr {Vanýsek}",
  title="In-situ X-ray study of carbon coated LiFePO4 for Li-ion Battery in Different State of Charge",
  booktitle="ECS Transaction",
  year="2018",
  series="19th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2018)",
  journal="ECS Transactions",
  volume="87",
  number="1",
  pages="1--7",
  publisher="The Electrochemical Society",
  address="Pennington, NJ, USA",
  doi="10.1149/08701.0107ecst",
  issn="1938-5862"
}