Solid reaction mechanism of Li2CO3 and FePO4/C powder

Takashi Hashizume; Atsushi Saiki; Kiyoshi Terayama

doi:10.1002/9781118771464.ch9

Solid reaction mechanism of Li₂CO₃ and FePO₄/C powder

Takashi Hashizume, Atsushi Saiki, Kiyoshi Terayama

Materials Design and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

LiFePO₄ is used as a cathode material for rechargeable lithium-ion cell (LiFe battery). LiFeP04 powder was prepared by sohd phase reaction. The apparent activation energy was calculated to 152 kj/mol by TG Ozawa method. The unreacted peak of Li₂CO₃, Fe₂Oe, Fe₂O₄ and Li₃Fe₂(PO₄)₃ were confirmed in the sample synthesized at 873 K to 1023 K for 8 h by using XRD. The peaks of LiFePO₄ were observed at 1073 K for 8 h. It’s considered that diffusion controlled reaction of Li-ion was dominantly developed at a meddle field in this reaction.

Original language	English
Title of host publication	Innovative Processing and Manufacturing of Advanced Ceramics and Composites II
Publisher	wiley
Pages	93-102
Number of pages	10
ISBN (Electronic)	9781118771464
ISBN (Print)	9781118771501
DOIs	https://doi.org/10.1002/9781118771464.ch9
State	Published - 2014/01/01

Keywords

Activation energy
Cathode materials
Crystallinity
Rechargeable lithium-ion cell
Thermal solid phase reaction

ASJC Scopus subject areas

General Engineering
General Materials Science
General Chemical Engineering

Access to Document

10.1002/9781118771464.ch9

Cite this

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title = "Solid reaction mechanism of Li2CO3 and FePO4/C powder",

abstract = "LiFePO4 is used as a cathode material for rechargeable lithium-ion cell (LiFe battery). LiFeP04 powder was prepared by sohd phase reaction. The apparent activation energy was calculated to 152 kj/mol by TG Ozawa method. The unreacted peak of Li2CO3, Fe2Oe, Fe2O4 and Li3Fe2(PO4)3 were confirmed in the sample synthesized at 873 K to 1023 K for 8 h by using XRD. The peaks of LiFePO4 were observed at 1073 K for 8 h. It{\textquoteright}s considered that diffusion controlled reaction of Li-ion was dominantly developed at a meddle field in this reaction.",

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AB - LiFePO4 is used as a cathode material for rechargeable lithium-ion cell (LiFe battery). LiFeP04 powder was prepared by sohd phase reaction. The apparent activation energy was calculated to 152 kj/mol by TG Ozawa method. The unreacted peak of Li2CO3, Fe2Oe, Fe2O4 and Li3Fe2(PO4)3 were confirmed in the sample synthesized at 873 K to 1023 K for 8 h by using XRD. The peaks of LiFePO4 were observed at 1073 K for 8 h. It’s considered that diffusion controlled reaction of Li-ion was dominantly developed at a meddle field in this reaction.

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