Deflagration synthesis of nanocrystalline LiNi1/3Co 1/3Mn1/3O2 cathode material

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Abstract

The homogenous precursor has been prepared using a mixed aqueous solution of Ni(NO3)2·6H2O, Co(NO 3)2·6H2O, Mn(NO3)2 and LiNO3 as metal sources and citric acid as chelating agent and fuel. The nanocrystalline LiNi1/3Co1/3Mn 1/3O2 powder was rapidly synthesized by deflagrating the dried precursor in oxygen. The as-synthesized LiNi1/3Co 1/3Mn1/3O2 powder has a rhombohedral crystal system with an impurity phase of Li2MnO3. The mean crystallite size of as-synthesized powder was 40.89 nm. The annealed LiNi 1/3Co1/3Mn1/3O2 powder was mainly consisted of particle agglomerates with the primary particles size of 100-300 nm. The high initial capacities of 208.0 mAh·g-1 (2.8-4.6 V) and 173.6 mAh·g-1 (2.8-4.3 V) were discharged at the rate of 0.05 C, respectively. Its capacity retentions were 89.3% and 93.4% within the voltage range of 2.8-4.6 V and 2.8-4.3 V at 0.1 C after 20 cycles, respectively. The results suggest that the deflagration synthesis holds potential to rapidly prepare nanocrystalline LiNi1/3Co1/3Mn1/3O 2 cathode material.

Original languageEnglish
Title of host publicationRechargeable Lithium and Lithium Ion Batteries
Pages139-144
Number of pages6
Edition41
DOIs
StatePublished - 2012
EventRechargeable Lithium and Lithium Ion Batteries - 220th ECS Meeting - Boston, MA, United States
Duration: 9 Oct 201114 Oct 2011

Publication series

NameECS Transactions
Number41
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceRechargeable Lithium and Lithium Ion Batteries - 220th ECS Meeting
Country/TerritoryUnited States
CityBoston, MA
Period9/10/1114/10/11

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