Preparation of spherical spinel LiMn2O4 cathode material for lithium ion batteries

Weihua Pu; Xiangming He; Guoyun Zhang; Changyin Jiang; Chunrong Wan; Shichao Zhang

doi:10.4028/0-87849-410-3.477

Preparation of spherical spinel LiMn₂O₄ cathode material for lithium ion batteries

Weihua Pu^*
, Xiangming He
, Guoyun Zhang
, Changyin Jiang
, Chunrong Wan
, Shichao Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Tsinghua University

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

3 Scopus citations

Abstract

A novel process was proposed for preparing spinel LiMn₂O ₄ with spherical particles from cheap materials of MnSO₄, NaOH, NH₃·H₂O and LiOH. Its successful preparation started with a carefully controlled crystallization of Mn₃O ₄, leading to the spherical shape of its particles and a high tap density. The mixture of Mn₃O₄ and LiOH was sintered to produce LiMn₂O₄ with spherical particle size retention. The spherical particles of spinel LiMn₂O₄ were of excellent fluidity and dispersivity, and had tap density as high as 2.14 g cm^-3 and the initial discharge capacity reaching 128 mAh g ^-1. Its 15^th cycle capacity kept tobe 125 m Ah g ^-1.

Original language	English
Pages (from-to)	477-480
Number of pages	4
Journal	Key Engineering Materials
Volume	336-338 I
DOIs	https://doi.org/10.4028/0-87849-410-3.477
State	Published - 2007

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Controlled crystallization
Li-ion battery
Spherical particles
Spinel LiMnO

Access to Document

10.4028/0-87849-410-3.477

Cite this

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title = "Preparation of spherical spinel LiMn2O4 cathode material for lithium ion batteries",

abstract = "A novel process was proposed for preparing spinel LiMn2O 4 with spherical particles from cheap materials of MnSO4, NaOH, NH3·H2O and LiOH. Its successful preparation started with a carefully controlled crystallization of Mn3O 4, leading to the spherical shape of its particles and a high tap density. The mixture of Mn3O4 and LiOH was sintered to produce LiMn2O4 with spherical particle size retention. The spherical particles of spinel LiMn2O4 were of excellent fluidity and dispersivity, and had tap density as high as 2.14 g cm-3 and the initial discharge capacity reaching 128 mAh g -1. Its 15th cycle capacity kept tobe 125 m Ah g -1.",

keywords = "Controlled crystallization, Li-ion battery, Spherical particles, Spinel LiMnO",

author = "Weihua Pu and Xiangming He and Guoyun Zhang and Changyin Jiang and Chunrong Wan and Shichao Zhang",

year = "2007",

doi = "10.4028/0-87849-410-3.477",

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volume = "336-338 I",

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journal = "Key Engineering Materials",

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T1 - Preparation of spherical spinel LiMn2O4 cathode material for lithium ion batteries

AU - Pu, Weihua

AU - He, Xiangming

AU - Zhang, Guoyun

AU - Jiang, Changyin

AU - Wan, Chunrong

AU - Zhang, Shichao

PY - 2007

Y1 - 2007

N2 - A novel process was proposed for preparing spinel LiMn2O 4 with spherical particles from cheap materials of MnSO4, NaOH, NH3·H2O and LiOH. Its successful preparation started with a carefully controlled crystallization of Mn3O 4, leading to the spherical shape of its particles and a high tap density. The mixture of Mn3O4 and LiOH was sintered to produce LiMn2O4 with spherical particle size retention. The spherical particles of spinel LiMn2O4 were of excellent fluidity and dispersivity, and had tap density as high as 2.14 g cm-3 and the initial discharge capacity reaching 128 mAh g -1. Its 15th cycle capacity kept tobe 125 m Ah g -1.

AB - A novel process was proposed for preparing spinel LiMn2O 4 with spherical particles from cheap materials of MnSO4, NaOH, NH3·H2O and LiOH. Its successful preparation started with a carefully controlled crystallization of Mn3O 4, leading to the spherical shape of its particles and a high tap density. The mixture of Mn3O4 and LiOH was sintered to produce LiMn2O4 with spherical particle size retention. The spherical particles of spinel LiMn2O4 were of excellent fluidity and dispersivity, and had tap density as high as 2.14 g cm-3 and the initial discharge capacity reaching 128 mAh g -1. Its 15th cycle capacity kept tobe 125 m Ah g -1.

KW - Controlled crystallization

KW - Li-ion battery

KW - Spherical particles

KW - Spinel LiMnO

UR - https://www.scopus.com/pages/publications/33947283223

U2 - 10.4028/0-87849-410-3.477

DO - 10.4028/0-87849-410-3.477

M3 - 文章

AN - SCOPUS:33947283223

SN - 1013-9826

VL - 336-338 I

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JO - Key Engineering Materials

JF - Key Engineering Materials

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