Study of Li1x(Mn4/9Co1/9Ni 4/9)1-xO2 cathode materials for vehicle battery applications

Sun Ho Kang; Wenquan Lu; Kevin G. Gallagher; Sang Ho Park; Vilas G. Pol

doi:10.1149/1.3600701

Study of Li_1x(Mn_4/9Co_1/9Ni _4/9)_1-xO₂ cathode materials for vehicle battery applications

Sun Ho Kang^*
, Wenquan Lu
, Kevin G. Gallagher
, Sang Ho Park
, Vilas G. Pol

^*Corresponding author for this work

Division of Chemical Engineering

Argonne National Laboratory
Korean Intellectual Property Office

Research output: Contribution to journal › Journal article › peer-review

25 Scopus citations

Abstract

Li_1+x(Mn_4/9Co_1/9Ni_4/9) _1-xO₂ with two lithium content (x 0 and 0.05) has been synthesized using coprecipitated (Mn_4/9Co_1/9Ni _4/9)(OH)₂ and their electrochemical properties have been investigated. Compared with the x 0 material, the lithium-rich material (x 0.05) exhibited superior electrochemical properties. When cycled between 2.5 and 4.4 V, the Li/Li_1.05(Mn_4/9Co_1/9Ni _4/9)_0.95O₂ cells showed high first-cycle coulombic efficiency (93), reversible discharge capacity of 187 mAh/g at C/12 with 99 capacity retention after 40 cycles, and excellent rate performance (86 of C/12 rate at 5 C discharge current). The Li_1.05(Mn _4/9Co_1/9Ni_4/9)_0.95O₂ electrode also showed a full-cell pulse power characteristics (5 C discharge pulse) comparable to Li_1.05(Mn_1/3Co_1/3Ni _1/3)_0.95O₂ electrode and better thermal stability at charged state (4.4 V) than charged LiNi_0.8Co _0.15Al_0.05O₂ (4.2 V). Using a battery design and cost model developed in-house, calculations found battery packs with Li _1.05(Mn_4/9Co_1/9Ni_4/9) _0.95O₂ as the positive electrode to be of lower cost and higher energy density than those with LiNi_0.8Co_0.15Al _0.05O₂ and Li_1.05(Mn_1/3Co _1/3Ni_1/3)_0.95O₂ electrodes. The experimental and modeling results obtained in this work suggest Li _1.05(Mn_4/9Co_1/9Ni_4/9) _0.95O₂ to be a promising cathode material for vehicle battery applications.

Original language	English
Pages (from-to)	A936-A941
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	8
DOIs	https://doi.org/10.1149/1.3600701
State	Published - 2011.08

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10.1149/1.3600701

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@article{3549bbeff7c84f298db9c51cc5a32188,

title = "Study of Li1x(Mn4/9Co1/9Ni 4/9)1-xO2 cathode materials for vehicle battery applications",

abstract = "Li1+x(Mn4/9Co1/9Ni4/9) 1-xO2 with two lithium content (x 0 and 0.05) has been synthesized using coprecipitated (Mn4/9Co1/9Ni 4/9)(OH)2 and their electrochemical properties have been investigated. Compared with the x 0 material, the lithium-rich material (x 0.05) exhibited superior electrochemical properties. When cycled between 2.5 and 4.4 V, the Li/Li1.05(Mn4/9Co1/9Ni 4/9)0.95O2 cells showed high first-cycle coulombic efficiency (93), reversible discharge capacity of 187 mAh/g at C/12 with 99 capacity retention after 40 cycles, and excellent rate performance (86 of C/12 rate at 5 C discharge current). The Li1.05(Mn 4/9Co1/9Ni4/9)0.95O2 electrode also showed a full-cell pulse power characteristics (5 C discharge pulse) comparable to Li1.05(Mn1/3Co1/3Ni 1/3)0.95O2 electrode and better thermal stability at charged state (4.4 V) than charged LiNi0.8Co 0.15Al0.05O2 (4.2 V). Using a battery design and cost model developed in-house, calculations found battery packs with Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 as the positive electrode to be of lower cost and higher energy density than those with LiNi0.8Co0.15Al 0.05O2 and Li1.05(Mn1/3Co 1/3Ni1/3)0.95O2 electrodes. The experimental and modeling results obtained in this work suggest Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 to be a promising cathode material for vehicle battery applications.",

author = "Kang, \{Sun Ho\} and Wenquan Lu and Gallagher, \{Kevin G.\} and Park, \{Sang Ho\} and Pol, \{Vilas G.\}",

year = "2011",

month = aug,

doi = "10.1149/1.3600701",

language = "English",

volume = "158",

pages = "A936--A941",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

number = "8",

}

TY - JOUR

T1 - Study of Li1x(Mn4/9Co1/9Ni 4/9)1-xO2 cathode materials for vehicle battery applications

AU - Kang, Sun Ho

AU - Lu, Wenquan

AU - Gallagher, Kevin G.

AU - Park, Sang Ho

AU - Pol, Vilas G.

PY - 2011/8

Y1 - 2011/8

N2 - Li1+x(Mn4/9Co1/9Ni4/9) 1-xO2 with two lithium content (x 0 and 0.05) has been synthesized using coprecipitated (Mn4/9Co1/9Ni 4/9)(OH)2 and their electrochemical properties have been investigated. Compared with the x 0 material, the lithium-rich material (x 0.05) exhibited superior electrochemical properties. When cycled between 2.5 and 4.4 V, the Li/Li1.05(Mn4/9Co1/9Ni 4/9)0.95O2 cells showed high first-cycle coulombic efficiency (93), reversible discharge capacity of 187 mAh/g at C/12 with 99 capacity retention after 40 cycles, and excellent rate performance (86 of C/12 rate at 5 C discharge current). The Li1.05(Mn 4/9Co1/9Ni4/9)0.95O2 electrode also showed a full-cell pulse power characteristics (5 C discharge pulse) comparable to Li1.05(Mn1/3Co1/3Ni 1/3)0.95O2 electrode and better thermal stability at charged state (4.4 V) than charged LiNi0.8Co 0.15Al0.05O2 (4.2 V). Using a battery design and cost model developed in-house, calculations found battery packs with Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 as the positive electrode to be of lower cost and higher energy density than those with LiNi0.8Co0.15Al 0.05O2 and Li1.05(Mn1/3Co 1/3Ni1/3)0.95O2 electrodes. The experimental and modeling results obtained in this work suggest Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 to be a promising cathode material for vehicle battery applications.

AB - Li1+x(Mn4/9Co1/9Ni4/9) 1-xO2 with two lithium content (x 0 and 0.05) has been synthesized using coprecipitated (Mn4/9Co1/9Ni 4/9)(OH)2 and their electrochemical properties have been investigated. Compared with the x 0 material, the lithium-rich material (x 0.05) exhibited superior electrochemical properties. When cycled between 2.5 and 4.4 V, the Li/Li1.05(Mn4/9Co1/9Ni 4/9)0.95O2 cells showed high first-cycle coulombic efficiency (93), reversible discharge capacity of 187 mAh/g at C/12 with 99 capacity retention after 40 cycles, and excellent rate performance (86 of C/12 rate at 5 C discharge current). The Li1.05(Mn 4/9Co1/9Ni4/9)0.95O2 electrode also showed a full-cell pulse power characteristics (5 C discharge pulse) comparable to Li1.05(Mn1/3Co1/3Ni 1/3)0.95O2 electrode and better thermal stability at charged state (4.4 V) than charged LiNi0.8Co 0.15Al0.05O2 (4.2 V). Using a battery design and cost model developed in-house, calculations found battery packs with Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 as the positive electrode to be of lower cost and higher energy density than those with LiNi0.8Co0.15Al 0.05O2 and Li1.05(Mn1/3Co 1/3Ni1/3)0.95O2 electrodes. The experimental and modeling results obtained in this work suggest Li 1.05(Mn4/9Co1/9Ni4/9) 0.95O2 to be a promising cathode material for vehicle battery applications.

UR - https://www.scopus.com/pages/publications/80051770634

U2 - 10.1149/1.3600701

DO - 10.1149/1.3600701

M3 - Journal article

AN - SCOPUS:80051770634

SN - 0013-4651

VL - 158

SP - A936-A941

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 8

ER -

Study of Li_1x(Mn_4/9Co_1/9Ni _4/9)_1-xO₂ cathode materials for vehicle battery applications

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