Synthesis of high-voltage spinel cathode material with tunable particle size and improved temperature durability for lithium ion battery

In this study, a one-pot method of polymer-mediating process is proposed to synthesize high voltage spinels (LiNi sub([1/2])Mn sub(3/2)O sub(4)) with tunable particle size and high-crystallization. The primary particle size can be controlled from nanometer to micrometer via changing different type o...

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Bibliographic Details
Published inJournal of power sources Vol. 262; pp. 483 - 487
Main Authors JIN, Yi-Chun, LU, Ming-I, WANG, Tsung-Hsiung, YANG, Chang-Rung, DUH, Jenq-Gong
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier 15.09.2014
Subjects
Applied sciences
Capacitance
Direct energy conversion and energy accumulation
Durability
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
High voltages
Lithium-ion batteries
Micrometers
Nanostructure
Particle size
Spinel
Transformations
Lithium ion batteries
Particle size
Cathode
Nickel Oxides
Lithium Oxides
Temperature effect
Durability
Secondary cell
Electrode material
Discharge charge cycle
Polymer-mediating
Operating conditions
Lithium ion battery
Spinels
Preparation
Temperature durability
Manganese Oxides
Spinel cathode material
Specific capacity
Electrical characteristic
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Summary:In this study, a one-pot method of polymer-mediating process is proposed to synthesize high voltage spinels (LiNi sub([1/2])Mn sub(3/2)O sub(4)) with tunable particle size and high-crystallization. The primary particle size can be controlled from nanometer to micrometer via changing different type of polymer additives. Relationships between particle sizes and electrochemical performances at wide temperature ranges (-20 [degrees]C-55 [degrees]C) are investigated. Nano-sized spinel delivers a good rate capability and higher capacitance at both room and low temperatures, while the micro-sized spinel performs better in capacity retention, especially at elevated temperature. The correlations among the particle size, temperature durability and cycling stability are demonstrated. Besides, the influence of polymer-mediation on the morphology transformation of spinel is also probed and discussed.
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ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2014.03.089