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Impact of the flame...
Impact of the flame retardant additive triphenyl phosphate (TPP) on the performance of graphite/LiFePO4 cells in high power applications
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- Ciosek Högström, Katarzyna, 1984- (författare)
- Uppsala universitet,Strukturkemi,Strukturkemi, Structural Chemistry
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- Lundgren, Henrik (författare)
- KTH,Tillämpad elektrokemi
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- Wilken, Susanne, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers
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- Zavalis, Tommy G. (författare)
- KTH,Tillämpad elektrokemi,Applied Electrochemistry KTH
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- Behm, Mårten (författare)
- KTH,Tillämpad elektrokemi,Applied Electrochemistry KTH
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- Edström, Kristina, 1958- (författare)
- Uppsala universitet,Strukturkemi
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- Jacobsson, Per, 1958 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers
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- Johansson, Patrik, 1969 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers
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- Lindbergh, Göran (författare)
- KTH,Tillämpad elektrokemi,Applied Electrochemistry KTH
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- Engelska.
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Ingår i: Journal of Power Sources. - : Elsevier BV. - 0378-7753 .- 1873-2755. ; 256, s. 430-439
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- This study presents an extensive characterization of a standard Li-ion battery (LiB) electrolyte containing different concentrations of the flame retardant triphenyl phosphate (TPP) in the context of high power applications. Electrolyte characterization shows only a minor decrease in the electrolyte flammability for low TPP concentrations. The addition of TPP to the electrolyte leads to increased viscosity and decreased conductivity. The solvation of the lithium ion charge carriers seem to be directly affected by the TPP addition as evidenced by Raman spectroscopy and increased mass-transport resistivity. Graphite/LiFePO4 full cell tests show the energy efficiency to decrease with the addition of TPP. Specifically, diffusion resistivity is observed to be the main source of increased losses. Furthermore, TPP influences the interface chemistry on both the positive and the negative electrode. Higher concentrations of TPP lead to thicker interface layers on LiFePO4. Even though TPP is not electrochemically reduced on graphite, it does participate in SEI formation. TPP cannot be considered a suitable flame retardant for high power applications as there is only a minor impact of TPP on the flammability of the electrolyte for low concentrations of TPP, and a significant increase in polarization is observed for higher concentrations of TPP. (C) 2014 Elsevier B.V. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- BASIS-SETS
- Flame retardant additive
- ELECTROCHEMICAL PERFORMANCE
- MIXED-SOLVENT
- Electrolyte characterization
- SOLVENT-CONTAINING ELECTROLYTES
- FLUORINATED ALKYL PHOSPHATES
- Triphenyl phosphate (TPP)
- LEAN AD
- JOURNAL OF CHEMICAL PHYSICS
- Hybrid Pulse Power Characterization (HPPC)
- V72
- CARBONATE
- 1980
- P5639
- NONFLAMMABLE ELECTROLYTES
- NEGATIVE ELECTRODE
- Electrode/electrolyte interface
- Graphite/LiFePO4 cell
- RAY
- LITHIUM-ION BATTERIES
- ETHYLENE
- PHOTOELECTRON-SPECTROSCOPY
- Kemi med inriktning mot oorganisk kemi
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Ciosek Högström, ...
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Lundgren, Henrik
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Wilken, Susanne, ...
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Zavalis, Tommy G ...
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Behm, Mårten
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Edström, Kristin ...
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Jacobsson, Per, ...
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Johansson, Patri ...
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Lindbergh, Göran
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- NATURVETENSKAP
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Journal of Power ...
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Chalmers tekniska högskola
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Kungliga Tekniska Högskolan
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Uppsala universitet