Publication result detail

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.

Original Title

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

English Title

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

Type

Paper in proceedings (conference paper)

Original Abstract

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.

English abstract

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.

Keywords

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

Key words in English

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

Authors

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

RIV year

2019

Released

01.12.2018

Publisher

The Electrochemical Society

Location

Pennington, NJ, USA

Book

ECS Transaction

Edition

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

ISBN

1938-5862

Periodical

ECS Transactions

Volume

87

Number

1

State

United States of America

Pages from

1

Pages to

7

Pages count

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"
}