Effects of sp2- and sp3-carbon coatings on dissolution and electrochemistry of water-based LiFePO4 cathodes

Effects of sp2- and sp3-carbon coatings on dissolution and electrochemistry of water-based... Keywords Lithium-ion battery  Lithium iron phosphate  slurries was observed. These distinct dispersions are pri- Cathode  Dissolution  Aqueous slurry marily due to their different surface chemistries. To -9 -1 improve their poor electrical conductivity (*10 Scm ) [22, 23], most commercial LiFePO powders are fabricated 1 Introduction with a thin layer of carbon coating on their particle sur- faces. Because various coating technologies are used, this Two decades ago lithium iron phosphate (LiFePO ) was surface carbon exhibits different coating qualities. Carbon proposed as a potential cathode-active material for lithium- is typically hydrophobic and poorly compatible with water, ion batteries [1]. The theoretical advantages of this active so the agglomeration of LiFePO particles during aqueous material are its high capacity, good cycle-life, and good processes occurs spontaneously. As mentioned above, in thermal stability at high temperatures in its fully charged addition to powder agglomeration, the dissolution of state [2–7]. These exceptional properties result from the LiFePO during aqueous processes is also an essential strong Fe–P–O bonds within the olivine structure of issue. As water is a high dielectric solvent, it is common for LiFePO . In addition, LiFePO is a promising cathode- most oxides to partially http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Electrochemistry Springer Journals

Effects of sp2- and sp3-carbon coatings on dissolution and electrochemistry of water-based LiFePO4 cathodes

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Publisher
Springer Netherlands
Copyright
Copyright © 2017 by Springer Science+Business Media B.V.
Subject
Chemistry; Electrochemistry; Physical Chemistry; Industrial Chemistry/Chemical Engineering
ISSN
0021-891X
eISSN
1572-8838
D.O.I.
10.1007/s10800-017-1105-y
Publisher site
See Article on Publisher Site

Abstract

Keywords Lithium-ion battery  Lithium iron phosphate  slurries was observed. These distinct dispersions are pri- Cathode  Dissolution  Aqueous slurry marily due to their different surface chemistries. To -9 -1 improve their poor electrical conductivity (*10 Scm ) [22, 23], most commercial LiFePO powders are fabricated 1 Introduction with a thin layer of carbon coating on their particle sur- faces. Because various coating technologies are used, this Two decades ago lithium iron phosphate (LiFePO ) was surface carbon exhibits different coating qualities. Carbon proposed as a potential cathode-active material for lithium- is typically hydrophobic and poorly compatible with water, ion batteries [1]. The theoretical advantages of this active so the agglomeration of LiFePO particles during aqueous material are its high capacity, good cycle-life, and good processes occurs spontaneously. As mentioned above, in thermal stability at high temperatures in its fully charged addition to powder agglomeration, the dissolution of state [2–7]. These exceptional properties result from the LiFePO during aqueous processes is also an essential strong Fe–P–O bonds within the olivine structure of issue. As water is a high dielectric solvent, it is common for LiFePO . In addition, LiFePO is a promising cathode- most oxides to partially

Journal

Journal of Applied ElectrochemistrySpringer Journals

Published: Jun 22, 2017

References

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