Spark plasma sintering of LiFePO4: Ac field suppressing lithium migration

Nan Luo; Yong Lin; Jian Guo; Emanuele Quattrocchi; Huaijiu Deng; Jian Dong; Francesco Ciucci; Filippo Boi; Chunfeng Hu; Salvatore Grasso

doi:10.3390/ma14112826

Spark plasma sintering of LiFePO₄: Ac field suppressing lithium migration

Nan Luo, Yong Lin, Jian Guo, Emanuele Quattrocchi, Huaijiu Deng, Jian Dong, Francesco Ciucci, Filippo Boi, Chunfeng Hu, Salvatore Grasso^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Our work proposes a comparison between Spark Plasma Sintering of LiFePO₄ carried out using an Alternating Current (AC) and Direct Current (DC). It quantifies the Li-ion migration using DC, and it validates such hypothesis using impedance spectroscopy, X-ray photoelectron spectroscopy and inductively coupled plasma optical emission spectroscopy. The use of an AC field seems effective to inhibit undesired Li-ion migration and achieve high ionic conductivity as high as 4.5 × 10⁻³ S/cm, which exceeds by one order of magnitude samples processed under a DC field. These results anticipate the possibility of fabricating a high-performance all-solid-state Li-ion battery by preventing undesired Li loss during SPS processing.

Original language	English
Article number	2826
Journal	Materials
Volume	14
Issue number	11
DOIs	https://doi.org/10.3390/ma14112826
Publication status	Published - 1 Jun 2021
Externally published	Yes

Keywords

DC and AC
LiFePO
Lithium-ion migration
Spark plasma sintering

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10.3390/ma14112826

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title = "Spark plasma sintering of LiFePO4: Ac field suppressing lithium migration",

abstract = "Our work proposes a comparison between Spark Plasma Sintering of LiFePO4 carried out using an Alternating Current (AC) and Direct Current (DC). It quantifies the Li-ion migration using DC, and it validates such hypothesis using impedance spectroscopy, X-ray photoelectron spectroscopy and inductively coupled plasma optical emission spectroscopy. The use of an AC field seems effective to inhibit undesired Li-ion migration and achieve high ionic conductivity as high as 4.5 × 10−3 S/cm, which exceeds by one order of magnitude samples processed under a DC field. These results anticipate the possibility of fabricating a high-performance all-solid-state Li-ion battery by preventing undesired Li loss during SPS processing.",

keywords = "DC and AC, LiFePO, Lithium-ion migration, Spark plasma sintering",

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doi = "10.3390/ma14112826",

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TY - JOUR

T1 - Spark plasma sintering of LiFePO4

T2 - Ac field suppressing lithium migration

AU - Luo, Nan

AU - Lin, Yong

AU - Guo, Jian

AU - Quattrocchi, Emanuele

AU - Deng, Huaijiu

AU - Dong, Jian

AU - Ciucci, Francesco

AU - Boi, Filippo

AU - Hu, Chunfeng

AU - Grasso, Salvatore

PY - 2021/6/1

Y1 - 2021/6/1

N2 - Our work proposes a comparison between Spark Plasma Sintering of LiFePO4 carried out using an Alternating Current (AC) and Direct Current (DC). It quantifies the Li-ion migration using DC, and it validates such hypothesis using impedance spectroscopy, X-ray photoelectron spectroscopy and inductively coupled plasma optical emission spectroscopy. The use of an AC field seems effective to inhibit undesired Li-ion migration and achieve high ionic conductivity as high as 4.5 × 10−3 S/cm, which exceeds by one order of magnitude samples processed under a DC field. These results anticipate the possibility of fabricating a high-performance all-solid-state Li-ion battery by preventing undesired Li loss during SPS processing.

AB - Our work proposes a comparison between Spark Plasma Sintering of LiFePO4 carried out using an Alternating Current (AC) and Direct Current (DC). It quantifies the Li-ion migration using DC, and it validates such hypothesis using impedance spectroscopy, X-ray photoelectron spectroscopy and inductively coupled plasma optical emission spectroscopy. The use of an AC field seems effective to inhibit undesired Li-ion migration and achieve high ionic conductivity as high as 4.5 × 10−3 S/cm, which exceeds by one order of magnitude samples processed under a DC field. These results anticipate the possibility of fabricating a high-performance all-solid-state Li-ion battery by preventing undesired Li loss during SPS processing.

KW - DC and AC

KW - LiFePO

KW - Lithium-ion migration

KW - Spark plasma sintering

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U2 - 10.3390/ma14112826

DO - 10.3390/ma14112826

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SN - 1996-1944

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JO - Materials

JF - Materials

IS - 11

M1 - 2826

ER -

Spark plasma sintering of LiFePO₄: Ac field suppressing lithium migration

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Keywords

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