Synthesis and Electrochemical Performance of a Lithium Titanium Phosphate Anode for Aqueous Lithium-Ion Batteries

Handle URI:
http://hdl.handle.net/10754/599830
Title:
Synthesis and Electrochemical Performance of a Lithium Titanium Phosphate Anode for Aqueous Lithium-Ion Batteries
Authors:
Wessells, Colin; La Mantia, Fabio; Deshazer, Heather; Huggins, Robert A.; Cui, Yi
Abstract:
Lithium-ion batteries that use aqueous electrolytes offer safety and cost advantages when compared to today's commercial cells that use organic electrolytes. The equilibrium reaction potential of lithium titanium phosphate is -0.5 V with respect to the standard hydrogen electrode, which makes this material attractive for use as a negative electrode in aqueous electrolytes. This material was synthesized using a Pechini type method. Galvanostatic cycling of the resulting lithium titanium phosphate showed an initial discharge capacity of 115 mAh/g and quite good capacity retention during cycling, 84% after 100 cycles, and 70% after 160 cycles at a 1 C cycling rate in an organic electrolyte. An initial discharge capacity of 113 mAh/g and capacity retention of 89% after 100 cycles with a coulombic efficiency above 98% was observed at a C/5 rate in pH -neutral 2 M Li2 S O4. The good cycle life and high efficiency in an aqueous electrolyte demonstrate that lithium titanium phosphate is an excellent candidate negative electrode material for use in aqueous lithium-ion batteries. © 2011 The Electrochemical Society.
Citation:
Wessells C, La Mantia F, Deshazer H, Huggins RA, Cui Y (2011) Synthesis and Electrochemical Performance of a Lithium Titanium Phosphate Anode for Aqueous Lithium-Ion Batteries. J Electrochem Soc 158: A352. Available: http://dx.doi.org/10.1149/1.3536619.
Publisher:
The Electrochemical Society
Journal:
Journal of The Electrochemical Society
Issue Date:
2011
DOI:
10.1149/1.3536619
Type:
Article
ISSN:
0013-4651
Sponsors:
This work was performed with support from the King Abdullah University of Science and Technology (KAUST) and the Global Climate and Energy Project (GCEP) at Stanford.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorWessells, Colinen
dc.contributor.authorLa Mantia, Fabioen
dc.contributor.authorDeshazer, Heatheren
dc.contributor.authorHuggins, Robert A.en
dc.contributor.authorCui, Yien
dc.date.accessioned2016-02-28T06:10:50Zen
dc.date.available2016-02-28T06:10:50Zen
dc.date.issued2011en
dc.identifier.citationWessells C, La Mantia F, Deshazer H, Huggins RA, Cui Y (2011) Synthesis and Electrochemical Performance of a Lithium Titanium Phosphate Anode for Aqueous Lithium-Ion Batteries. J Electrochem Soc 158: A352. Available: http://dx.doi.org/10.1149/1.3536619.en
dc.identifier.issn0013-4651en
dc.identifier.doi10.1149/1.3536619en
dc.identifier.urihttp://hdl.handle.net/10754/599830en
dc.description.abstractLithium-ion batteries that use aqueous electrolytes offer safety and cost advantages when compared to today's commercial cells that use organic electrolytes. The equilibrium reaction potential of lithium titanium phosphate is -0.5 V with respect to the standard hydrogen electrode, which makes this material attractive for use as a negative electrode in aqueous electrolytes. This material was synthesized using a Pechini type method. Galvanostatic cycling of the resulting lithium titanium phosphate showed an initial discharge capacity of 115 mAh/g and quite good capacity retention during cycling, 84% after 100 cycles, and 70% after 160 cycles at a 1 C cycling rate in an organic electrolyte. An initial discharge capacity of 113 mAh/g and capacity retention of 89% after 100 cycles with a coulombic efficiency above 98% was observed at a C/5 rate in pH -neutral 2 M Li2 S O4. The good cycle life and high efficiency in an aqueous electrolyte demonstrate that lithium titanium phosphate is an excellent candidate negative electrode material for use in aqueous lithium-ion batteries. © 2011 The Electrochemical Society.en
dc.description.sponsorshipThis work was performed with support from the King Abdullah University of Science and Technology (KAUST) and the Global Climate and Energy Project (GCEP) at Stanford.en
dc.publisherThe Electrochemical Societyen
dc.titleSynthesis and Electrochemical Performance of a Lithium Titanium Phosphate Anode for Aqueous Lithium-Ion Batteriesen
dc.typeArticleen
dc.identifier.journalJournal of The Electrochemical Societyen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
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