High Rate Li-Ion Batteries with Cation-Disordered Cathodes

Minkyu Kim; Donghoon Kim; Yuren Wen; Minkyung Kim; Hyun Myung Jang; Hong Li; Lin Gu; Byoungwoo Kang

doi:10.1016/j.joule.2019.01.002

High Rate Li-Ion Batteries with Cation-Disordered Cathodes

Minkyu Kim, Donghoon Kim, Yuren Wen, Minkyung Kim, Hyun Myung Jang, Hong Li, Lin Gu, Byoungwoo Kang

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

14 Scopus citations

Abstract

We report a new class of cation-disordered material that can achieve reasonable Li diffusion by controlling the way of the cation distribution rather than the degree of cation disordering itself. The fully cation-disordered LiFeSO ₄ F, activated by changes in the synthesis temperature and the Li/Fe ratio, delivers a substantially improved electrochemical performance. It exhibits a superior rate capability up to 100 C (36-s discharge) with ∼ 60 mAh/g and excellent capacity retention for 2,500 cycles at 5 C charge/20 C discharge rate. These results extend the scope of electrode materials to include cation-disordered materials and provide new opportunities for designing them for high-performance Li-ion batteries.

Original language	English
Pages (from-to)	1064-1079
Number of pages	16
Journal	Joule
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/j.joule.2019.01.002
State	Published - 17 Apr 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Inc.

Keywords

cation-disordered cathode material
cation-disordering
high-rate cathodes with cation-disordered cathodes
new activation mechanism
new type of cation-disordered compounds
the way of disordered cation distribution
triplite LiFeSO F
unlocking the potential of cation-disordered cathodes

Access to Document

10.1016/j.joule.2019.01.002

Cite this

@article{8ee31f38e5974f74a96950c7ff8cd0e9,

title = "High Rate Li-Ion Batteries with Cation-Disordered Cathodes",

abstract = " We report a new class of cation-disordered material that can achieve reasonable Li diffusion by controlling the way of the cation distribution rather than the degree of cation disordering itself. The fully cation-disordered LiFeSO 4 F, activated by changes in the synthesis temperature and the Li/Fe ratio, delivers a substantially improved electrochemical performance. It exhibits a superior rate capability up to 100 C (36-s discharge) with ∼ 60 mAh/g and excellent capacity retention for 2,500 cycles at 5 C charge/20 C discharge rate. These results extend the scope of electrode materials to include cation-disordered materials and provide new opportunities for designing them for high-performance Li-ion batteries.",

keywords = "cation-disordered cathode material, cation-disordering, high-rate cathodes with cation-disordered cathodes, new activation mechanism, new type of cation-disordered compounds, the way of disordered cation distribution, triplite LiFeSO F, unlocking the potential of cation-disordered cathodes",

author = "Minkyu Kim and Donghoon Kim and Yuren Wen and Minkyung Kim and Jang, {Hyun Myung} and Hong Li and Lin Gu and Byoungwoo Kang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Inc.",

year = "2019",

month = apr,

day = "17",

doi = "10.1016/j.joule.2019.01.002",

language = "English",

volume = "3",

pages = "1064--1079",

journal = "Joule",

issn = "2542-4351",

publisher = "Cell Press",

number = "4",

}

TY - JOUR

T1 - High Rate Li-Ion Batteries with Cation-Disordered Cathodes

AU - Kim, Minkyu

AU - Kim, Donghoon

AU - Wen, Yuren

AU - Kim, Minkyung

AU - Jang, Hyun Myung

AU - Li, Hong

AU - Gu, Lin

AU - Kang, Byoungwoo

PY - 2019/4/17

Y1 - 2019/4/17

N2 - We report a new class of cation-disordered material that can achieve reasonable Li diffusion by controlling the way of the cation distribution rather than the degree of cation disordering itself. The fully cation-disordered LiFeSO 4 F, activated by changes in the synthesis temperature and the Li/Fe ratio, delivers a substantially improved electrochemical performance. It exhibits a superior rate capability up to 100 C (36-s discharge) with ∼ 60 mAh/g and excellent capacity retention for 2,500 cycles at 5 C charge/20 C discharge rate. These results extend the scope of electrode materials to include cation-disordered materials and provide new opportunities for designing them for high-performance Li-ion batteries.

AB - We report a new class of cation-disordered material that can achieve reasonable Li diffusion by controlling the way of the cation distribution rather than the degree of cation disordering itself. The fully cation-disordered LiFeSO 4 F, activated by changes in the synthesis temperature and the Li/Fe ratio, delivers a substantially improved electrochemical performance. It exhibits a superior rate capability up to 100 C (36-s discharge) with ∼ 60 mAh/g and excellent capacity retention for 2,500 cycles at 5 C charge/20 C discharge rate. These results extend the scope of electrode materials to include cation-disordered materials and provide new opportunities for designing them for high-performance Li-ion batteries.

KW - cation-disordered cathode material

KW - cation-disordering

KW - high-rate cathodes with cation-disordered cathodes

KW - new activation mechanism

KW - new type of cation-disordered compounds

KW - the way of disordered cation distribution

KW - triplite LiFeSO F

KW - unlocking the potential of cation-disordered cathodes

UR - http://www.scopus.com/inward/record.url?scp=85064092467&partnerID=8YFLogxK

U2 - 10.1016/j.joule.2019.01.002

DO - 10.1016/j.joule.2019.01.002

M3 - Article

AN - SCOPUS:85064092467

SN - 2542-4351

VL - 3

SP - 1064

EP - 1079

JO - Joule

JF - Joule

IS - 4

ER -

High Rate Li-Ion Batteries with Cation-Disordered Cathodes

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this